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A user adaptive scheduling multiple access protocol

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4 Author(s)
Jing Liu ; State Key Lab. of Integrated Service Networks, Xidian Univ., Xi''an, China ; Jiandong Li ; Yanhui Chen ; Xiaoyan Sun

A multiple access control (MAC) protocol - user adaptive scheduling multiple access (UASMA) protocol is proposed in this paper, which can perfectly schedule the packet transmission according to the exact number of active mobile terminals (MTs) determined by self-organizing algorithm, and adjust the number of packets sending by one node in one frame properly. UASMA protocol employs an especial frame structure, which makes it possible to allocate channel resource to uplink and downlink traffic according o their respective service requirements. And the concept of referenced-frame-length is proposed, which can ensure the frame length various in a certain range, and consequently increase the utilization of the channel greatly. Meanwhile, UASMA protocol uses an efficient collision resolution algorithm to guarantee that active MTs can access the channel rapidly. Finally, the performance of UASMA protocol is evaluated by simulation and compared with UPMA protocol, the simulation results show that the former has better performance than the latter.

Published in:

Advanced Information Networking and Applications, 2004. AINA 2004. 18th International Conference on  (Volume:2 )

Date of Conference:

29-31 March 2004

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