Study on handover channel selection in cognitive radio based on multi- attribute making decision

Computer Engineering and Applications ›› 2011, Vol. 47 ›› Issue (27): 158-160.

• 数据库、信号与信息处理 • Previous Articles Next Articles

Study on handover channel selection in cognitive radio based on multi-
attribute making decision

WU Qiong1，XIAN Yongju1，2，XU Changbiao2，QIN Huazhong1

1.College of Communications Engineering，Chongqing University，Chongqing 400030，China
2.Key Laboratory of Mobile Communications，Chongqing University of Posts and Telecommunications，Chongqing 400065，China

Received:1900-01-01 Revised:1900-01-01 Online:2011-09-21 Published:2011-09-21

认知无线电中基于多属性判决的目标切换信道选择

吴琼1，鲜永菊1，2，徐昌彪2，覃华忠1

1.重庆大学通信工程学院，重庆 400030
2.重庆邮电大学移动通信重点实验室，重庆 400065

Abstract

Abstract: Cognitive radio can improve the wireless spectrum utilization by spectrum handover，therefore，the choice of target channel while spectrum handover is essential for system performance.Based on Simple Additive Weight（SAW） in multi-attribute making decision model，this paper brings forward two-decision mechanism creatively.Moreover，combined with the thought of classification，the paper uses geometric mean method to calculate the corresponding attribute weights.Compared with first-time matching method，simulation results show that the proposed method can distinctly reduce the delay of the handover channel，significantly improve spectrum utilization as well as bit error rate.

Key words: cognitive radio, spectrum handover, targets channel selection, multi-attribute making decision

摘要： 认知无线电通过频谱切换来提高无线频谱利用率，因此切换时目标信道的选择对系统性能的影响至关重要。针对该问题根据多属性判决模型中的简单加权法创造性提出两级选择机制，并结合业务分级的思想利用几何平均法计算出相应的属性权重。与首次匹配法进行了比较，仿真结果表明：该方法选择的目标信道的延迟明显降低，频谱利用率和误码率也明显提高。

关键词: 认知无线电, 频谱切换, 目标信道选择, 多属性判决

WU Qiong1，XIAN Yongju1，2，XU Changbiao2，QIN Huazhong1. Study on handover channel selection in cognitive radio based on multi-
attribute making decision[J]. Computer Engineering and Applications, 2011, 47(27): 158-160.

吴琼1，鲜永菊1，2，徐昌彪2，覃华忠1. 认知无线电中基于多属性判决的目标切换信道选择[J]. 计算机工程与应用, 2011, 47(27): 158-160.

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Study on handover channel selection in cognitive radio based on multi-
attribute making decision

认知无线电中基于多属性判决的目标切换信道选择

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