History of WiMAX

WiMAX has not been known to the public is still not considering the widespread implementation of these technologies. But overseas, WiMAX began ogled as a substitute for telephone cables to provide high-speed Internet services, especially in areas of extensive and spread (such as rural or urban).

WiMAX is built based on standards created by the IEEE (Institute of Electrical and Electronics Engineers). Designed to meet the demand for high-speed wireless access, WiMAX allows access to various multimedia applications via a wireless connection.

History WiMax

How does the origin of WiMAX technology and WiMAX's own name? James A. Johnson (Vice President, Intel Communications Group / General Manager, Wireless Networking Group) tells the term comes from the acronym WiMAX wireless (abbreviated Wi) Microwave Access (abbreviated MAX). WiMAX resembles Wi-Fi in terms of technology use the same modulation.

This technology called OFDM (Orthogonal Frequency Division Multiplexing). OFDM is a digital modulation system in which a signal is divided into several channels with a narrow frequency band and close together, with each channel using a different frequency. The technology is developed in the 1960s - the 1970s. This technology was developed at the time of the study to reduce the frequency interference between the various canals that were located close together.

With WiMAX technology has to offer, all of these obstacles will disappear by itself.

WiFi operates only in the range of meters, WiMAX can operate in the range of kilometers. In addition, WiMAX was designed at the level of carrier-grade technology. This makes WiMAX has a reliability and service quality better than Wi-Fi. With a range farther, and the ability to pass through various barriers such as buildings or trees, WiMAX suitable for application in urban areas that have offices and residential buildings.

Characteristics WiMAX

WiMAX is an IEEE 802.16 standard is a standard charge of various derivatives. These standards govern the use of wireless devices for the purposes of urban networks (Metropolitan Area Network / MAN). This standard is specifically designed to meet the needs of the network will be high-speed wireless access or BWA (broadband wireless access). The presence of this technology is expected to allow access to various multimedia applications via a wireless connection with antarperangkat distance further.

802.16 standard (and turunanannya) operates on radio frequency bands between 2GHz to 11GHz. This standard has a transfer rate of 75Mbit per second with a low level of latency, and efficient use of frequency spectrum space.

WiMax is divided into two models that use each represented by two different IEEE standards. The first model is the use of fixed-access utilization, or fixed connection that uses a standard IEEE 802.16-2004 (as a result of a revision of the IEEE 802.16a standard). These standards included in class service "fixed wireless" because it uses a mounted antenna at the customer location. This antenna can be mounted on roofs or tall poles just like the disc for TV satellite dishes. Technology of the standard which is the substitution of technologies such as cable modems, all kinds of digital subscriber line (xDSL), the circuit transmit / exchange (Tx / Ex), and optical circuit carrier (Oc-x).

While the second utilization model, often called the use of portable or mobile use IEEE 802.16e standard. This standard is especially implemented for data communications in various handheld devices, or mobile devices (mobile) as a PDA or notebook.

WiMAX Benefits

With the implementation of the IEEE 802.16-2004 standard, expected to get various benefits, such as the availability of network services more quickly (even in areas difficult to reach by cable-based network), installation costs are lower, and the ability to overcome physical limitations contained in the network cable-based. To maintain optimum performance, 802.16 network also supports QoS (quality of service) that is needed in the audio and video connections.

Besides the already mentioned previously, the implementation of this 802.16 standard will bring benefits for operators (and the network service provider) and for the users. These advantages include the availability of broadband services on demand, in the residential broadband service, network service in remote areas, as well as exploration of the possibility (roaming) inter-MAN hotspots by the user.

With broadband on demand, places that were not already have high-speed Internet access (due to limited coverage area cable modems and DSL), will be able to get services without a long wait braodband. For the modern business and large companies, such Internet access is certainly a need that can not be negotiable. Also for home users who long ago longed for broadband access. The presence of 802.16 standards will enable them to get DSL-quality service with an easier installation and more distance.