Title :
A Distributed Cross-Layer Adaptive Scheduling Algorithm for Wireless Mesh Networks
Author :
Guo, Hua ; Zhang, Zhong ; Guo, Jian ; Zhang, Jiansong
Author_Institution :
Dept. of Commun. Eng., Tianjin Polytech. Univ., Tianjin, China
Abstract :
In this paper, we propose a cross-layer scheduling scheme named DCLASA for the coordinated distributed scheduling of IEEE 802.16 WMN. This scheme considers the channel quality information (CQI) in physical layer when designing the timeslot allocation algorithm in MAC layer, and adjusts the node´s holdoff exponent according to CQI. Meanwhile multi-user diversity and adaptive modulation and coding technique are adopted to improve system performance. Simulation shows that DCLASA can increase the network total throughput, and reduce link transmission delay.
Keywords :
WiMax; access protocols; adaptive modulation; diversity reception; encoding; multiuser channels; scheduling; wireless mesh networks; DCLASA; IEEE 802.16 WMN; MAC layer; adaptive modulation; channel quality information; coding; coordinated distributed scheduling; distributed cross-layer adaptive scheduling; link transmission delay; multiuser diversity; network total throughput; node holdoff exponent; physical layer; timeslot allocation; wireless mesh networks; Algorithm design and analysis; Delay; IEEE 802.16 Standards; Modulation; Scheduling algorithm; Throughput; Wireless communication;
Conference_Titel :
Control, Automation and Systems Engineering (CASE), 2011 International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4577-0859-6
DOI :
10.1109/ICCASE.2011.5997794
