双向拍卖协议结合自适应模糊推理的认知无线电网络频谱共享方案  

Cognitive Radio Spectrum Sharing Scheme Based on Double Auction Protocol and Adaptive Fuzzy Inference

作　　者：刘俊霞[1] 卜宇[1] 刘智勇[1] 

机构地区：[1]新疆工程学院,电气与信息工程系

出　　处：《微型电脑应用》2016年第6期32-35,共4页Microcomputer Applications

基　　金：新疆维吾尔自治区高校科研计划青年教师科研启动基金项目(No.XJEDU2014S074)

摘　　要：针对认知无线电(CR)网络中频谱资源有限且利用率较低的问题,提出了一种基于连续双向拍卖(CDA)协议和自适应模糊推理的认知无线电协作频谱共享方案。首先,SU通过对接收到的PU信号进行能量计算,粗略估计PU频带的利用率情况。然后,PU和SU进行双向拍卖过程,SU根据PU的频带利用率情况给出一个较为合理的应价,以此减少讨价还价轮数。最后,通过模糊逻辑推理获得最终交易价格,完成交易,以此实现SU对PU空闲频带的有效利用。实验结果表明,该方案在平均拍卖轮数、PU收益和频带利用率方面具有较高的性能。For the issues that the limited spectrum resources and low utilization rate in cognitive radio（CR） network,a cognitive radio spectrum sharing scheme based on double auction protocol（CDA） and adaptive fuzzy inference is proposed.Firstly,SU calculates the energy of the received PU signals,and estimates the utilization rate of the PU band.Then,PU and SU perform the double auction process.SU give a more reasonable price according to the band utilization rate of PU,in order to reduce the number of bargaining rounds.Finally,the final transaction price is obtained by fuzzy logic inference,and the completion of the transaction,in order to achieve the effective use of SU for the PU idle frequency band.Experimental results show that the proposed scheme has a high performance in terms of average number of auction rounds,PU gain and bandwidth utilization.

关 键 词：认知无线电网络 频谱共享 连续双向拍卖 模糊推理 自适应 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]