基于速率自适应的中继协作MAC协议设计

doi:10.11959/j.issn.1000-436x.2017234

Abstract

Abstract:

The existing wireless cooperative MAC protocols rarely consider the impact of channel condition and node energy consumption.To this issue,a new wireless cooperative MAC protocol was proposed,which used the random linear network coding,and introduced a mechanism of request relay frame to solve the hidden terminal problem.Specifically,the proposed method adaptively adjusted the node rate according to RSSI,and determined the relay node based on the requirements of cooperative transmission.The simulation results show that the network performance can be improved through deploying the proposed protocol.

Key words: rate adaption, relay, collaboration, protocol design

CLC Number:

TP391

Fang-min LI,Tao ZHANG,Shuang-yin HU,Xin-hua LIU. Relay-based cooperative MAC protocol with rate adaptation[J]. Journal on Communications, 2017, 38(Z1): 46-52.

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References 18

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参数名	参数值
通信范围Range	100 m
有效载荷字节	400 B
有效载荷分片个数	5
竞争窗口大小	31
RRF字节	29 B
S_sd	1 Mbit/s
最大重传次数	7
时隙大小	10 μs
SIFS	10 μs
DIFS	20 μs

Relay-based cooperative MAC protocol with rate adaptation

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