Citation
Al-Hemyari, Ali and Ng, Chee Kyun and Noordin, Nor Kamariah and Ismail, Alyani and Khatun, Sabira
(2008)
Constructing routing tree centralized scheduling using multi-channel system in 802.16.
In: IEEE 2008 6th National Conference on Telecommunication Technologies and IEEE 2008 2nd Malaysia Conference on Photonics (NCTT-MCP 2008), 26-28 Aug. 2008, Putrajaya, Malaysia. (pp. 183-187).
Abstract
The IEEE 802.16 standard defines WiMax (worldwide interoperability for microwave access) mesh network, using the base station (BS) as a coordinator for centralized scheduling. This paper proposes a centralized scheduling algorithm by constructing routing tree in WiMax mesh network, which introduces the cross-layer concept between the media access controller (MAC) and the network layers. The interference, hop-count, spatial reuse and quality of services (QoS) guarantee are considered. In our scheme, each node has one transceiver and can be tuned between multiple channels, intending to eliminate the secondary interference. The result of analysis shows this algorithm greatly improves the length of scheduling, channel utilization ratio (CUR) and average transmission scheduling.
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