西安电子科技大学综合业务网国家重点实验室
网络首发:2010-02-10,
纸质出版:2010
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司江勃, 李赞, 刘增基. 无线协作网络中存在干扰时的中继选择协议[J]. 西安交通大学学报, 2010,44(2):72-76.
Relay Selection Protocol for Cooperative Wireless Networks with Interference[J]. 2010, 44(2): 72-76.
针对无线协作网络中共道干扰影响中继选择的问题
提出一种存在干扰的中继选择协议(RSI).该协议以最小化系统中断概率为目标
选择具有最大瞬时端到端信干比的中继节点转发源节点信息
并且在考虑直接传输时
目的节点采用选择合并策略合并直接传输和中继传输
从而充分利用空间分集增益
降低了系统的中断概率.RSI协议不需要中继节点之间交互信息
通过竞争的方式完成数据传输
节省了系统开销
具有较好的实用性.仿真结果表明
在瑞利信道中
当中继节点个数为4、中断概率为10
-2
时
与最大最小中继选择协议相比
RSI协议能够取得约3~4 dB的信噪比增益.
A relay selection protocol with interference(RSI)is proposed to solve the problem that co-channel interferences affect the relay selection in cooperative wireless networks. The protocol minimizes the system outage probability
and selects the relay with maximum instantaneous end-to-end signal to interference and noise ratio to forward the source message. Moreover
the selection combining scheme is deployed at the destination to combine the direct transmission and relay transmission when the direct transmission is taken into account. This strategy can make full use of space diversity and decrease the system outage probability. Compared with the existing relay selection protocols
the proposed protocol does not need any information exchange between any two relays
and the data transmission is completed by competition. Thus
the proposed protocol has a low system cost and good practicability. Simulation results
and comparisons with the max-min relay selection protocol show that when the number of relays is 4 and the outage probability is 10
-2
the proposed protocol achieves about 3~4 dB signal to noise ratio gain in Rayleigh fading channels.
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无线局域网802.1X协议安全性分析与检测. 2009,43(10):52-55.
Ad Hoc网络中基于链路故障的路由修复机制. 2009,43(10):47-51.
改进的集中式协作用户选择方法. 2009,43(8):64-67.
放大转发异步协作通信系统中的差分空时频传输方案. 2009,43(6):62-66.
非均匀分簇的无线传感器网络数据传送机制. 2009,43(4):14-17.
一种高信道利用率的分簇传感器网络数据聚合协议. 2009,43(2):38-42.
Nakagami-m衰落信道中的机会中继策略. 2008,42(12):1546-1549.
用于无线传感器网络的比例公平队列调度算法. 2008,42(2):129-132.
无线网络中模糊自适应显式窗口流量控制. 2006,40(2):170-174.
一种新的空域分集技术. 2005,39(6):551-557.
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