TITLE

A New Cut-Through Mechanism in IEEE 802.16 Mesh Networks

AUTHOR(S)
Yi-Ting Mai; Chun-Chuan Yang; Cheng-Jung Wen
PUB. DATE
May 2009
SOURCE
Proceedings of World Academy of Science: Engineering & Technolog;May2009, Vol. 53, p98
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
IEEE 802.16 is a new wireless technology standard, it has some advantages, including wider coverage, higher bandwidth, and QoS support. As the new wireless technology for last mile solution, there are designed two models in IEEE 802.16 standard. One is PMP (point to multipoint) and the other is Mesh. In this paper we only focus on IEEE 802.16 Mesh model. According to the IEEE 802.16 standard description, Mesh model has two scheduling modes, centralized and distributed. Considering the pros and cons of the two scheduling, we present the combined scheduling QoS framework that the BS (Base Station) controls time frame scheduling and selects the shortest path from source to destination directly. On the other hand, we propose the Expedited Queue mechanism to cut down the transmission time. The EQ mechanism can reduce a lot of end-to-end delay in our QoS framework. Simulation study has shown that the average delay is smaller than contrasts. Furthermore, our proposed scheme can also achieve higher performance.
ACCESSION #
41562195

 

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