Worldwide interpretability for Microwave Access is a telecommunication tool that provides wireless transfer of information and data over portable and mobile access. It is fast way transfer of data up to 10Mbps. WiMax is usually deployed using OFDM and SOFDM symbols.
Last Mile Connection
WiMax is referred to as a last mile connection because it is assumed as the final strut of providing communication link to end users. It can be an expensive way of providing network connection to people living in rural areas, only when one has to take wires and cables to far off land. It is termed as first mile connectivity for the end user to the world outside his vicinity. To overcome the expense involved in building wireless infrastructure wireless broadband access is often used. The competition in the market for more WiMax products and more service providers would lower the cost of the wireless broadband connection. It just provides a great option for those that do not have central access to services such as T1 internet or DSL.The development in the wireless connection as a last mile connection ha also opened new horizon of opportunities. The manufacturers of wireless products can bring more and improved digital portable devices to market at lower prices. WiMax subscription is available in both indoor and outdoor modules. The indoor units are expensive and complicated to build. In order to operate proficiently the indoor units must be close to the base stations. Where as the installation of outdoor units are simple and uncomplicated to set up just like installing a small satellite dish in a home.
Other Network Applications
WiMax is considered as a reliable substitute for GSM and CDMA mobile technologies. Moreover it is expected that WiMax would appear more like a backhaul support for 2G, 3G and 4G technologies. The wired cellular operations are often supported by T1 connections. However the remote connections are maintained using satellite back up hold. The urban and rural wireless set up is usually based on microwave linkage. The WiMax set up provides more consistent bandwidth as compared to the bequest cellular connections. This bandwidth is further upgraded in many parts of the world like North America. The operators are deploying 34Mbps to 1 GB network setups and also support their network with fiber optic connections where possible. The WiMax set up requires a back up support from some internet backbone which involves additional cost of hardware. The difficulty to reach to the nearest inter backbone is still a challenge while deploying a network for wireless technologies like WiMax.
Limitations of WiMax
WiMax broadband is a wireless connection which is going through the period of immense expectations like high bandwidth and less cost. However to date this wireless mode has not yet met the hope. This wireless technology is under the phase of development. It is fallacy that WiMax provides unperturbed signal strength everywhere because it operates in licensed frequency spectrum but it is also prone to obstacles like trees and walls. This wireless connection is supposed to provide a speed of 70Mbps over every 30 mile distance but this is not the case when the signal has to travel longer distance. This wireless connection can either operates efficiently with high bit rates or it can travel over longer distances with accuracy and precision. The fixed WiMax are composed of high range antennas which allow for greater signal strength and speed. Whereas the mobile WiMax set ups are usually indoor which involve the wireless mobile devices for operation, which in turn requires more support from the nearby base station. For an indoor WiMax set up it is necessary to check the nearby base station. The mere support of omni directional antenna is not enough to support WiMax.