Today many people around the world have made the change to wireless Internet service for a host of different reasons. The primary reason for choosing wireless Internet service is often related to the increase in demands for the Internet. Through wireless Internet service, you can take full advantage of the opportunity to work both from the office and home as it is convenient for you without worrying about bumping others off the Internet or you being bumped off, something that is fairly common with dial-up services. It is also much easier to get connected to wireless Internet service than with other Internet services. In the past, if you wanted to register for dial-up service, you had to have a telephone line established and connected to your computer.

In the event that you had more than one computer, you would need to purchase multiple phone lines based on the number of computers that you wanted connected to the Internet through dial-up services. Needless to say, this could be a hassle as well as quite expensive. If you did not want to have a separate dedicated phone line set up for your computer, it meant that you would need to use your regular land line, but this presented problems as well because it meant that if you received a phone call while you were online you would need to either disconnect from the Internet to be able to take the phone call or you would have to miss the phone call. This could be frustrating and inconvenient. The cost of using dial-up services was sometimes expensive as well, depending upon how your service was configured.

There is also another important advantage that is associated with wireless Internet service that should be understood as well. Many people found that with dial-up service it was often difficult or slow to download pictures and stream video and audio. This is something that you do not have to worry about with wireless Internet service. If you have been frustrated with the slow speed of dial-up services, you will likely be pleasantly surprised at how fast you can surf with wireless service.

These are problems that you do not have to worry about when you choose to use wireless Internet services because the Internet connection is not provided through your telephone connection. Wireless Internet services, such as 4G, are provided much in the same way that your cell phone receives service. In order to take advantage of a wireless connection you will need a high speed modem, router and wireless network cards as well as a wireless access point on your computer. Many service providers make it even more affordable to go wireless by offering a special package that includes everything you need, including the wireless access points and router.

By taking advantage of wireless Internet services you can now go online any time that you would like without worrying about clogging up your phone line, incurring additional charges or being bumped off.

By: Laura Williamson

MIMO (Multiple Input Multiple Output) wireless system uses multiple antennas at the transmitter and receiver to transmit and receive multiple data streams to achieve higher data rate and improves performance of radio systems with increase spectral efficiency. MIMO techniques are used extensively in IEEE 802.11n WLAN and 4G cellular networks such as WiMAX and LTE (Long Term Evolution) systems. A MIMO system uses spatially separated antennas to obtain spatial diversity in a multipath propagation environment. MIMO system can provide either diversity gain to combat signal fading or to provide capacity gain to achieve higher data rate. There are three different types of MIMO techniques. The first type is to maximize spatial diversity by improving transmit power efficiency. The second type is spatial multiplexing where multiple independent data signals are transmitted over antennas to increase data rate. The third type uses channel knowledge at the transmitter to obtain capacity gain, also known as beamforming.

Spatial Diversity can be implemented using SIMO (Single Input Multiple Output) or MISO (Multiple Input Single Output) systems. SIMO uses single transmit antenna and multiple receive antennas to provide receive diversity while MISO uses multiple transmit antennas and single receive antenna to provide transmit diversity. Signal power in a wireless channel fluctuates continuously. The signal is in fade when the signal power drops significantly and diversity is used to combat fading. In SIMO, the receive antennas see the different faded versions of the same transmitted signal and the receiver combines these signals to produce a resultant signal that has less amplitude variation and more easy to decode. A simple transmitter diversity scheme is implemented using space time block code (STBC), also referenced as Alamouti code. Two streams of signal symbols (both carries the same data but encoded differently using STBC) are transmitted simultaneously from two separate antennas to provide diversity in space/time domain.

Similar to STBC, Space Frequency Block Code (SFBC) can also be used except the encoding is carried out in antenna/frequency domain and frequency domain transmission scheme such as OFDM (Orthogonal Frequency Division Multiplexing) is used. The purpose of both STBC and SFBC schemes is not to increase systems capacity, but to improve SNR (Signal to Noise Ratio) and to reduce the BER (Bit Error Rate) of the system by transmitting coded information. As the channel SNR increases, it is possible to use a higher order modulation scheme and to receive the transmitted data at a greater distance (range). Since each symbol carries more bits of data in higher modulation scheme, this indirectly results in increase in system capacity.

Spatial Multiplexing in MIMO system provides a linear increase in transmission rate proportional to the number of transmit-receive antenna pairs without increasing the transmission bandwidth or power. A 2 x 2 MIMO system uses two transmit and two receive antennas. The bit stream to be transmitted is de-multiplexed in two half rate sub-streams, modulated and transmitted simultaneously from each transmit antenna. Since two different symbols are transmitted from the two antennas in one symbol period, the transmit rate is double as compared with SISO system. Under favorable channel conditions, the receiver can differentiate between the two co-channel signals, extracts both signals and combines it to yield the original bit stream. Spatial Multiplexing is particularly useful in urban deployments where long reach is less important than high data rate at the end user device.

Beamforming is a MIMO technique that uses multiple transmit antennas and shapes the overall antenna beam in the direction of the target receiver. Beamforming is used when the channel knowledge that can be used to improve the system performance is available at the transmitter. Channel knowledge refers to the instantaneous channel conditions or statistical property such as transmit and receive antenna correlation property. In general, transmitter beamforming can increase the signal strength at the receiver up to a factor T (number of transmit antennas). A pre-coding vector is derived from the channel knowledge and the transmitted signal is multiplied by the pre-coding, which can be interpreted as the beamformer.

Beamforming enhances SNR for higher throughput and link robustness while simultaneously reduces interference. When receiving a signal, beamforming can increase the gain in the direction of wanted signals and decrease the gain in the direction of interference and noise. Beamforming can provide significant range and capacity increase in a wireless network.

By: Paul Ngai

Wireless internet is a revolution in terms of surfing the web. This technology makes it possible to establish an internet connection from almost any location. This provides a large degree of advantages when considering the corporate world, as people are no longer locked into using the internet from a specific location. Of course there are other benefits like communicating with family and friends when traveling as well as working on the road. All this, however, is meaningless if you don’t choose the right connection option…

Hotspots

It is estimated that there are over 200 000 publicly accessible hotspots across 130 countries in North America alone! The advantage is that they provide a fast wireless broadband connection to any Wi-Fi enabled device. So in other words, you are basically connecting to a wireless network with a shared internet connection. You will find public hotspots in many locations, from your favorite coffee shop to the mall. The disadvantage is that they tend to cover only a small region, rendering your internet connection useless when you go outside of the coverage zone.

WISPs (Wireless Internet Service Providers)

There are some independent wireless internet providers called WISPs or wireless internet service providers. Because these companies are in competition with cable based providers you may find the pricing to be fairly lower. This connection method will (in most cases) require a unique hardware modem which is usually provided to you directly from the WISP. These modems will only work with the network it was designed for. With this being said, WISPs seem to be more applicable for home based users.

3G Internet

3G is the successor to 2G and stands for third generation. In many cases, this is the preferred wireless internet connection option. Cellphones are able to surf the internet via 3G by connecting to cellular towers, so it makes sense to couple this same technology with notebook computers. You will need a 3G modem that will connect to your machine via USB or PCMCIA. You will be able to insert your SIM card into this device and then setup a new dial-up connecting within your operating system.

Other Options

There are one or two more options worth mentioning that could be useful for your circumstances. If you have a mobile phone that supports 3G you can easily connect it your your computer by means of a data cable, infra-red or bluetooth. You will then be able to use your phone as a 3G modem, much in the same way that 3G PCMCIA/USB modems work. You may also want to consider setting up your own wireless hotspot if you don’t plan on using the internet outside of your home.

Some of the most common ways of establishing a wireless internet connection have been highlighted above. You should choose one that matches your requirements and circumstances. In terms of wireless internet, there are many different packages to choose from, which will allow you to select one based on your preferences.

By: David S Phillips

Dial-up internet has been out, it seems, since the dawn of time, and while you know your connection could be faster and it would be nice not to have so many interruptions, your current service is reliable in the way that you know what to expect.

I am sure you have heard the hype about broadband circulating everywhere, and most people seem to have upgraded their service. By providing you with a bare-bones comparison between broadband internet and dial-up, you will get a true feel for why this common and talked about option beats your telephone based program for getting online.

Dial-up is accessed through an internet service provider (ISP) that provides a connection for your computer online. Your computer may have a telephone hooked up to it, or it may use software to dial out to the Web and provide your connection. Some phone plans charge per call, but with unlimited calling these rates have gotten much better. Dial-up typically has a very nominal fee for their basic plan, and provides more features, such as email addresses, with more expensive plans.

Broadband internet is a constantly connected service that provides access without interruption at a particular speed. This speed will vary depending upon how many people are sharing a line at peak hours, such as before individuals would go to work, after they come home from work, and after dinner time, around 7:30 pm daily.

Dial-up has an issue of disconnection when lines are not dedicated to the internet, which most are not. A dedicated line will allow users of this service to stay connected much longer, while issues such as call waiting and weak signals on that line will cause interruption.

Because broadband is a constant connection, downed wires or light poles, or out of order terminals are usually the source of any disconnection. Broadband internet services can be purchased for a slightly higher fee, usually $10 more than basic dial-up, and most customers enjoy it much better than dial-up without minding the additional charge.

If your needs never change and you are happy with your dial-up plan, there may not be a need to change. Some people find that dial-up suits their immediate needs, and that is fine. For others, their needs change frequently, and broadband is more accommodating to those changes. Determine what move is best for you based on your current and future needs, and you won’t go wrong.

By: Uma A Ilango

Broadband services are available from a large array of providers. There are many types of services out there so deciding on the right product for your business may be difficult.

Broadband is a term that is used to describe high-speed connections for voice or data. Broadband connections allow for large data transfers and the ability to run applications such as streaming video easily.

When choosing an Internet service for your business one consideration is the speed you need. Various services offer different speeds. For example, a T1 is a high-speed digital connection that transmits data at a speed of 1.544 Mbps. A T1 has 24 channels. The T1 is an engineered circuit that is monitored at the central office. The circuit is brought into the customer premise on fiber cable that allows it to transmit at this high speed. Once on premise, the T1 is then connected to the customer’s data equipment.

A T3 line is a larger, faster T1. The T3 Internet line can transmit data at a rate of 43.232 Mbps. This speed is sometimes needed for large applications such as large data file transfers along with other bandwidth intensive uses such as web hosting and streaming video. The T3 is equal to about 28 T1s and is used for large business applications, campus environments and network backbones.

A DSL is another type of broadband connection. It is slightly slower than a T1 – the speed is based on distance from the central office to the customer premise. An advantage of the DSL is that it can typically be brought into smaller locations, sometimes even residential. However, pricing is not much less than the T1, which is also a more stable connection.

Some companies also offer OC lines. These optical carrier lines run over a SONET fiber network and can transmit at speeds of about 51.84 Mbps. There are larger OC lines also available with configurations such as OC3, OC12, OC48 and OC192. The number indicates the size of the OC circuit. OC192 lines are the largest and fastest connections available. An OC192 has transmission speed of up to 1976.64Mbps.

The choice for your business connection should be based on current and future needs as well as price. For the money, T1 circuits are typically the best buy for the small business. They provide fast transmission speeds to allow most applications as well as the ability to accommodate future applications. The T1 is a leased line so monthly charges will apply. Most companies see an immediate savings over standard line connections. The T1 is a reliable circuit. It is monitored from the central office so if a problem is detected it can easily be corrected, sometimes remotely.

By: Van Theodorou

Trends in commercial broadband internet services are leaning towards satellite services for homes, RVs, boats and vehicles. Many satellite broadband services are partnering with mobile satellite internet service providers so that they can offer their customers an attractive gift for signing up for service, and this gift is complimentary internet service for their RVs, motor homes, boats and vehicles. The partnership is required because HughesNet and StarBand both don’t offer mobile satellite internet services yet.

The first mobile internet service provider is Ground Control. Ground Control has special software that automatically makes adjustments to the satellite’s position to keep it pointed in the right direction. It is a self-contained unit that can be operated with a small remote control. After the system is set up you will be up and running within 7 minutes of turning the system on. It will take this long to adjust the satellite and pick up a signal. Ground Control offers coverage in the lower 48 as well as a few locations in Mexico and Canada. If you plan on touring these countries make sure you look at a coverage map to see where you will be able to pick up a signal.

The second mobile internet service provider is MotoSat. This company is partnered with HughesNet and it offers the type of customer service HughesNet customers have come to expect. This system automatically makes adjustments to its position to find the strongest signal just like Ground Control’s satellites. MotoSat satellites use DataStorm software which is a trusted and respected name in the mobile satellite industry. Service packages offered by this company offer high speed bandwidths, VoIP and VPN capabilities and EchoSat and LinkStar connectivity options.

The third mobile internet service provider is MobilSat, not to be confused with MobileSat, a Canadian company. MobilSat uses DataStorm software and an auto-adjusting satellite system. This company has a great selection of satellites to choose from. Select the size, style and prices that you are most interested in. You can also choose between satellite internet systems that require your vehicles to be still while connected to the Internet and systems that allow you to use the Internet while still in motion.

By: Sarah Freeland

Modern wireless Internet services have greatly helped people enhance the way they do their work. Their role has become so crucial that businesses may become paralyzed when they cease to become available.

There are three general types of wireless Internet services. These are cellular Internet, hotspot wireless Internet, and satellite Internet.

Cellular Internet is made possible by a cellular architecture that is made up of a backbone network. A group of cell phones located in a certain area can communicate using a common base station called a cell. Cells are made to overlap each other to ensure continuity of communication. Mobile units of different cellular Internet providers are able to connect with each other using the base stations and the backbone network of each provider.

To further facilitate communication among cell phones using different providers, a standard system has been developed. This is called Global System for Mobile Telecommunications, which has made roaming possible.

Hotspot wireless Internet, on the other hand, is useful for enabling Internet access in certain areas that are called hotspots. Examples of these areas are airports, coffee shops, and hotels. Internet access in these hotspots may come with a fee, but some offer it for free to further attract visitors in their respective areas.

Wireless local area network standards are used by hotspot wireless Internet. An example of such a standard is IEEE 802.11b, which allows connections at speeds of more than 10 megabits per second.

Meanwhile, satellite Internet from anywhere is being used for rescue services and other industries such as mining, transportation, and traveling. This provides better quality than traditional radio systems. To enable such service, a user needs to have an antenna that is aimed at the correct satellite and a modem that will be used to connect to the computer. The architecture of satellite Internet consists of an elliptical satellite dish, modems, and coaxial cables between the dish and the modems. The satellite dish needs to be mounted to a high place to ensure faster transmission of data.

Wireless Internet has indeed been crucial in helping businesses grow and governments improve. Because of its practical uses, it has also become a tool for personal use. One can only expect further improvements to be introduced to wireless Internet because, as time passes by, the demand for it will continue to rise.

By: Josh Riverside

Convincing you with the fact why Verizon FIOS is the best buy for your internet. It is important to illustrate the definition of what you mean by FIOS? So, let me update you all with the definitions of FIOS. FIOS is the abbreviated form of “Fiber Optic Service.” Verizon provides you with data communication services known as FIOS. The process of transferring data is conducted by fiber optic cables, which are bought into practice through FIOS.

FIOS is also known as “Fiber to the Premises”, whose abbreviated form is FTTP services. This fiber to the premises services, owes you with the provision of transmitting fiber optic data to business as well as residential surroundings. Fiber optic technology is considered to be the far stretched method of transferring data accumulating pulses of light.

As primary focus of FIOS is internet access, it can also be implemented for voice over IP (VOIP) and digital cable. Due to the above mentioned reason, FIOS has attained the position of potential competitor for both Internet Service Providers as well as cable.

Elaborating Verizon FIOS Internet Service

Verizon FIOS internet service is illustrated as a broadband service, which manages the design to avail internet access for considering maximum connection speed that is 25Mbps upstream and 50 Mbps downstream, highlighting where one is accommodated.

Connection speeds are feasible between Verizon central office locations serving you and the place where you reside. The speeds that are related to download or upload vary depending upon ample number of factors. Some are mentioned below:

What condition does wiring hold at you location?

What should be the computer configuration?

How much congestion in network lines and internet?

What is the speed of website servers, which are access by you?

The speed Verizon has, that you need

The Verizon FIOS consists of two great internet services and one network connection that is unbeatable. Elaborating below are the theory of two internet services, which provides you with positive results. These are:

High Speed Internet: – It provides you with a dedicated connection of “Digital Subscriber Line” (DSL), which is a medium of transferring data through normal phone lines and is compatible to connect the internet. Due to this high profiled property of internet, it is difficult to be competitive with cable, even at high valuable cost. Fiber Optic Service (FIOS) Internet: -It provides you with the fastest speed available and the fiber optic data in this case is transferred to your business and residence through Fiber to the Premises (FTTP) services. Installation is Easy

Verizon FIOS internet provides you with easy installation process, just by making it convenient for the technician to connect the equipment and handle the testing process, to provide you with assurance that every step is in working condition. The technician also insures you that, proper consultation would be given for further steps.

Future of Verizon FIOS Internet

Providing you with a 100% bandwidth of fiber-optic network, which is directly connected to your residential places, helps you in attaining all new internet tools and applications interconnected with the usage of Verizon FIOS Internet.

By: Jimmy Jenkins Ray

Practically everyone you know has an internet connection. People are no longer in awe of the internet. Computers are now common fixtures at homes, and not just in offices. People now prefer to use laptops instead of desktops both at home and at work because they take up less space and are portable. There has been a corresponding natural progression to using wireless internet connections (Wi-Fi). Wireless internet uses radio waves rather than wires to transmit data.

There are two elements of a wireless internet connection. Firstly you need a Local Area Network (LAN), an actual internet source that broadcasts the internet connection. A computer needs to be equipped with a wireless LAN card in order to connect with it.

Wireless internet is the perfect solution to our modern need to be connected at all times and everywhere. More and more businesses are beginning to use Wi-Fi. They prefer to do without Ethernet cables all over the office. Installing cables all over a building or an office is time consuming and messy. With wireless internet employees can move their laptops wherever they want and still be connected online.

Many homes have also shifted to using a wireless internet connection. It takes less than an hour to install and costs hardly anything. Family members can then move their laptops to any convenient spot in the house and still be connected. Sometimes neighbors may be able to access your connection, which is why it should be configured with password security. Any machine that cannot complete a ‘handshake’ with the LAN will not get wireless access.

There is no need to worry about internet safety as wireless networks today use security protocols such as Wi-Fi Protected Access (WPA) and an even more advanced Wi-Fi Protected Access 2 (WPA2). This ensures that no one can eavesdrop on your internet activity.

In many parts of the world entire business districts and corporate buildings are Wi-Fi hot spots where anyone with the appropriate hardware can connect to the internet. Coffee shops and malls all over Europe and North America are Wi-Fi enabled. Many hotels have jumped on the bandwagon and are offering wireless internet as part of their services.

Most of the latest computers, cell phones and PDAs come with web browsers already installed. It makes more sense for you to adopt the latest wireless technology and make the most of it whether at office, at home or while travelling.

By: Rizvana Abdul