Specifications 802.16 / m
IEEE 802.16 / m according to the cellular layer requirements of IMT Advanced Next Generation Mobile Networks. The features and technologies in IMT-Advanced are:
1. Design of a general nature worldwide
2. Suitable / compatible with layananan contained in the fixed networks
3. Have a good kulitas
4. Small terminals that can be used for broad usage.
5. Service capabilities of multimedia applications in a broad range.

Mobile WiMAX 802.16 / m is the 'air interface' which offers a new spectrum efficiency and throughput in accordance with the requirements of ITU for 4G technology development kedepannnya. IEEE 802.16 / m is to standardize data transmission speed is higher on mobile devices. Data speeds up to 1Gbps and possible distribution via wireless broadband access is an alternative to cable, DSL, and 3G. Broadband spectrum that is used in the frequency range from 2.3 GHz-3.5 GHz and the use of OFDM / OFDMA (Orthogonal Frequency Division Multiplexing Access). With the use of OFDM / OFDMA is considered to bring efficiency gains in terms of frequency bandwidth, coverage areas, installation and cost. Development by the IEEE 802.16 standardization began in March 2007 and scheduled for completion around the year 2009.

Two new wireless technologies are emerging seem to compete. WiMAX (Worldwide Interoperability for Microwave Access) was born earlier than LTE (Long Term Evolution). In the device and handset vendors support more readily than LTE, WiMAX in 2009. While LTE will be developed after the year 2010. Each of these technologies by the International Telecommunications Union (ITU) will be candidates for 4G network standards (at least 100 Mbps for data transfer) at least in the year 2009.

Mobile WiMAX is a wireless broadband solution that enables mobile and fixed network konfergensi broadband via an extensive radio access technology and flexible network architecture. Water interface on Mobile WiMAX applying Orthogonal Frequency Division Multiple Access (OFDMA) to obtain multi-path performance is better in the environment of Non Line Of Sight (NLOS). To support the growing bandwidth channel (scalable) from 1.25 MHz to 20 MHz, IEEE 802.16e introduces the Scalable-OFDMA (SOFDMA), Mobile Technical Group (MTG) on the WiMAX Forum is developing the Mobile WiMAX system profiles that enable mobile system configured

Mobile WiMAX based on IEEE 802.16e standard enables WiMAX systems applied to portable and mobile applications as well as fixed and nomadic. Mobile WiMAX introduces OFDMA technology (Orthogonal Frequency Division Multiple Multiple Access) and supports several other features to provide mobile broadband services for users in the state of motion up to speeds of 120 km / hr. These features include:

Government and local industry optimistic WiMax operators will be held for the Wimax internet service that is affordable, because the market economies of scale will be quickly achieved.

Suhono Harso Supangkat, special staff Minister for Communications and Information Technology (Communication and Information Minister), said the local industry does not need to worry too much for responding to the high costs that are borne by the operator of the tender results.

Base Station (BS)
Element / WiMAX devices generally consist of BS in the center and the CPE at the customer side. However there is still an additional devices like antennas, cables and other accessories. Is a device transceiver (transmitter and receiver) that is usually installed one location (colocated) with a network of Internet Protocol (IP). From this base station will be connected to multiple CPE interfaces with media of radio waves (RF) WiMAX standard. BS components consist of:

Wireless anything what advantages and disadvantages?

Advantages:
When compared with dial-up
· Fast as broadband access
· IP numbers can change, such as Dial-Up Access
· Can access anywhere, provided in hotspot areas
· Cheap, fast and flexible
· Umbrella for many users in a hotspot.
Disadvantages:
· To use the WiFi we must exist in an area accessible by WiFi or the term 'hotspot'.
· WiFi coverage area is still small, the signal can not penetrate walls.
· Access Point is more easily infiltrated by a virus
· Bugged easy data exchange

WiMAX Benefits
Bandwidth and reach of WiMAX enabled technology is used in the following applications:
Linking one-Wi-Fi hotspot with other Wi-Fi hotspots and the Internet;
-Providing the latest broadband access alternatives other than cable and DSL;
-Provide telecommunications services and high speed data;
-Provide a different source for internet connectivity
as part of the company's sustainability plans. Where, if
a company has an Internet connection and cable-based
wireless, especially from different providers, such connectivity
will not be affected by the unavailability of the same services.

The need for connections, especially the Internet, which today has become even more secondary purposes in large cities, of course requires a good connection system, quickly and economically in order to utilize this facility will comfortably.
Two advances in today's Internet is a broadband (fast access) and wireless. WiMax standard combines these two things, provides high-speed Internet access via wireless connections. Because WiMAX can be accessed from a relatively far distance, this standard is
solution "recent" is effective for providing quick access to home users, and to create a hotspot-ho spots in places such as airports, campuses, and other small communities.
Based on the IEEE 802.16 standard, WiMAX uses architectural point-to-multipoint, which makes it an ideal way to provide quick access to the locations where cable-based connections will be very difficult and costly. WiMAX can also be a solution to provide fast access to suburban areas,
where high speed lines are not yet available. Compatibility is that WiMAX connections can be combined or transferred to LAN network or other wireless-based cable.

Huawei Technologies ("Huawei"), a leader in providing next generation telecommunications network solutions for operators around the world, today announced the successful hold 2.5 GHz WiMAX commercial network with coverage of Southeast Asia's largest for Globe Telecom, the first operator in the Philippines, which launched broadband services.

The government's move to clean up the frequency band is driven by inputs from the winning bidder WiMax 16.d and as a continuation of the steps that are no longer DGPT extend the permit on the tape that the allocation was intended for the implementation of these technologies.

WiMAX is an international standard of the BWA that refer to the IEEE 802.16 standard. This standard is then further developed by a joint forum between companies of the world who are members of the WiMAX Forum. IEEE 802.16 has several variants that are meant to develop performance and capabilities of WiMAX technology. Types of IEEE 802.16 standards can be seen in the following table:

WiMAX technology is the basis of the IEEE 802.16 standard that allows data transmission services for Broadband Wireless Access (BWA) as an alternative to cable access or DSL. This teknologi is an attempt to answer the need for greater data rate, wide coverage, and compatibility between components in the network. Large throughput of course be an initial target of developing an access technology. This is driven by the increasingly diverse communications applications made by customers. With high data rate allows the network to be able to handle various kinds of transmission, both the transmission of voice, data, and video. WiMAX Forum states that only one Base Station, in theory, reach the cell coverage radius of 50 km with the ability of the system can transmit data at speeds up to 75 Mbps per carrier for the type of fixed and portable access

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