WIMAX (Worldwide Interoperability for Microwave Access) seems will be the next mobile broadband service in Indonesia after HSDPA (High-Speed Downlink Packet Access) and EVDO (Evolution Data Optimized/Only). WIMAX has high speed internet access for wide area. By theoretically, WIMAX service can reach data rate speed up tp 70 Mbps. WIMAX service can be applied for last mile broadband connection, backhaul and high speed enterprise

With WIMAX service, provider can provides broadband wireless access (BWAP up to 50 km for fixed subscriber and 5-15 km for mobile subscribers. In contrast, the WiFi/802.11 is limited only 30-100 m. the current WIMAX can provide the speed up to 40 Mbps and expected can reach up to 1 Gbps. Talking about the speed that can be guaranteed by WIMAX service, there was a misconception that WIMAX can deliver the speed up to 70 Mbps over 112.6 km. In practice, WIMAX could deliver symmetrical speed up to 10 Mbps at km with Line of sight (LOS) condition. Meanwhile in urban area, WIMAX can deliver only up to 10 Mbps over 2 km

First Media with their WIMAX product called Sitra commits to provide high speed internet access for their subscriber in Indonesia market. Beside Sitra WIMAX, First Media also will introduce fix broadband connection with the product called fastnet

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The key points to deploy WIMAX service is similar to the parameters on others mobile broadband platform such as EVDO and LTE. They are Radio Frequency and bandwidth capacities. More users they will reach, more resource they should provide to anticipate huge traffic especially during peak hour. Both parameters Radio Frequency and international internet bandwidth are the common problem on the entire of mobile broadband service including WIMAX especially when WIMAX provider gives special promotion during the first launch. To anticipate huge traffic during the promotion, there are many ways can be done by WIMAX providers to reduce high occupancy on the internet bandwidth. Bandwidth optimization which can be done such as inserting cache engine, limiting download process and other traffic engineering. WIMAX providers should make sure resource availability to reduce high churn rate at the end of month

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With WIMAX service, provider can provides broadband wireless access (BWAP up to 50 km for fixed subscriber and 5-15 km for mobile subscribers. In contrast, the WiFi/802.11 is limited only 30-100 m. the current WIMAX can provide the speed up to 40 Mbps and expected can reach up to 1 Gbps. Talking about the speed that can be guaranteed by WIMAX service, there was a misconception that WIMAX can deliver the speed up to 70 Mbps over 112.6 km. In practice, WIMAX could deliver symmetrical speed up to 10 Mbps at km with Line of sight (LOS) condition. Meanwhile in urban area, WIMAX can deliver only up to 10 Mbps over 2 km

WIMAX is the new competition to the current mobile broadband technologies which already deployed by many mobile broadband provider. With the launch of WIMAX, it will compete with 3G service such as CDMA2000 and UMTS. There fore in many cases when there will be a plan to launch the WIMAX service, current mobile provider which already provided 3G service will join the get the license to have WIMAX service. There are many benefits while mobile provider launch WIMAX service compared current 3G service such as WIMAX offers symmetrical bandwidth over many kilometer, effective cost and reducing the cost of T2 and E1

WIMAX is a short name for Worldwide Interoperability of Microwave Access. WIMAX is described in IEEE 802.16 Wireless Metropolitan Area Network (MAN) standard. The goal of WIMAX introduction to provide fixed wireless alternative to conventional DSL and Cable Internet.

WIMAX service which has broadband wireless access (BWA) license will allow subscribers to experience high speed internet access up to 70 Mbps and has range – 30-mile (50-km) radius from base station through mobile internet service. However, actual speed will be received by WIMAX subscriber is less than 70 Mbps. Introduction WIMAX service in Indonesia definitely will give more choices for the telecommunication subscriber in Indonesia while they want to access internet with high speed access instead of current mobile internet service such as 3G and EVDO services which already came earlier. Telecommunication subscriber in Indonesia also will select which one of broadband internet access has a good performance and which one is poor. They will select the good one and leave the poor

WIMAX system consists of two part :

1. A WIMAX Base Station:

Base station consists of indoor electronics and a WIMAX tower. Typically, a base station can cover up to 10 km radius (Theoretically, a base station can cover up to 50 kilo meter radius or 30 miles, however practical considerations limit it to about 10 km or 6 miles). Any wireless or mobile internet service node within the coverage area would be able to access the Internet.

2. A WIMAX receiver

The receiver and antenna could be a stand-alone box or a PCMCIA card that sits in your laptop or computer. Access to WIMAX base station is similar to accessing a Wireless Access Point in a WiFi network, but the coverage is more.

The introduction of WIMAX service is to give alternative to the existing mobile broadband internet service which already provided by GSM and CDMA network with the service 3G and EVDO. WIMAX service is also to give alternative internet connection through WiFi which has limited coverage.
Let see whether WIMAX service in Indonesia will response well by telecommunication subscriber in Indonesia or not as the current mobile internet service

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