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WiMax ready for rollout in India RRS feed

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    WiMax ready for rollout in India
    MUMBAI: After much talk, tests and trials, WiMax seems to be finally ready for commercial use in India. WiMax, high-speed internet access over a wireless connection, is a low-cost way to provide internet connectivity in places where laying cables is difficult

    Chennai-based Aircel is planning to take its WiMax network national while the Tata-owned VSNL will roll out retail WiMax offerings later this year. Bharat Sanchar Nigam (BSNL) is also ready to start WiMax services, having undertaken pilots at 14 locations.

    VSNL as well as BSNL have partnered with Aperto Networks, developer of the world's most advanced WiMax base stations and subscriber units, to deploy multi-service broadband wireless systems.

    The trials demonstrated applications in moving conditions such as video streaming, high-speed file downloads, voice over IP and web browsing.

    source:http://economictimes.indiatimes.com/...ow/1670512.cms
    Sunday, February 25, 2007 6:28 AM

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    WiMAX is defined as Worldwide Interoperability for Microwave Access by the WiMAX Forum, formed in June 2001 to promote conformance and interoperability of the IEEE 802.16 standard, officially known as WirelessMAN. The Forum describes WiMAX as "a standards-based technology enabling the delivery of last mile wireless broadband access as an alternative to cable and DSL".

    In Wi-Fi the media access controller (MAC) uses contention access — all subscriber stations that wish to pass data through a wireless access point (AP) are competing for the AP's attention on a random interrupt basis. This can cause subscriber stations distant from the AP to be repeatedly interrupted by closer stations, greatly reducing their throughput. This makes services such as Voice over IP (VoIP) or IPTV, which depend on an essentially constant Quality of Service (QoS) depending on data rate and interruptibility, difficult to maintain for more than a few simultaneous users.

    In contrast, the 802.16 MAC uses a scheduling algorithm for which the subscriber station need compete once (for initial entry into the network). After that it is allocated an access slot by the base station. The time slot can enlarge and contract, but remains assigned to the subscriber station which means that other subscribers cannot use it. The 802.16 scheduling algorithm is stable under overload and over-subscription (unlike 802.11). It can also be more bandwidth efficient. The scheduling algorithm also allows the base station to control QoS parameters by balancing the time-slot assignments among the application needs of the subscriber stations.
    Sunday, February 25, 2007 2:24 PM

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    cool.. post bro...... i m desperately waitin for it ..... by the way .... how does it work???
    Sunday, February 25, 2007 7:11 AM
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    WiMAX is defined as Worldwide Interoperability for Microwave Access by the WiMAX Forum, formed in June 2001 to promote conformance and interoperability of the IEEE 802.16 standard, officially known as WirelessMAN. The Forum describes WiMAX as "a standards-based technology enabling the delivery of last mile wireless broadband access as an alternative to cable and DSL".

    In Wi-Fi the media access controller (MAC) uses contention access — all subscriber stations that wish to pass data through a wireless access point (AP) are competing for the AP's attention on a random interrupt basis. This can cause subscriber stations distant from the AP to be repeatedly interrupted by closer stations, greatly reducing their throughput. This makes services such as Voice over IP (VoIP) or IPTV, which depend on an essentially constant Quality of Service (QoS) depending on data rate and interruptibility, difficult to maintain for more than a few simultaneous users.

    In contrast, the 802.16 MAC uses a scheduling algorithm for which the subscriber station need compete once (for initial entry into the network). After that it is allocated an access slot by the base station. The time slot can enlarge and contract, but remains assigned to the subscriber station which means that other subscribers cannot use it. The 802.16 scheduling algorithm is stable under overload and over-subscription (unlike 802.11). It can also be more bandwidth efficient. The scheduling algorithm also allows the base station to control QoS parameters by balancing the time-slot assignments among the application needs of the subscriber stations.
    Sunday, February 25, 2007 2:24 PM
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    I kno its complicated and technical......in simpler terms its a huge Wi-Fi connection where ISP's like BSNL,Airtel can reach their consumers easily without laying cables...............
    Sunday, February 25, 2007 2:31 PM
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    dude wimax already abt to role out in noida    it has been throughly tested there by bsnl
    Sunday, February 25, 2007 4:03 PM
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    it was in trial in some places .... now its launched everywhere................
    Sunday, February 25, 2007 4:32 PM
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    Helpful info...
    Sunday, February 25, 2007 11:21 PM
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    Good information.
    Monday, February 26, 2007 6:45 AM