摘要: 为提高认知无线电中的系统吞吐量,保证频谱分配的公平性,提出一种基于服务质量(QoS)分级的频谱分配策略。建立模糊综合判决模型,根据认知用户的业务类型判别其QoS级别,应用CMSB信道分配算法进行频谱分配。仿真实验结果表明,该频谱分配策略能在满足认知用户QoS需求的同时,保证较高的系统吞吐量和接入公平性。
关键词:
认知无线电,
频谱分配,
服务质量,
系统吞吐量,
公平性
Abstract: In order to improve the system throughput in cognitive radio and ensure the fairness of spectrum allocation, this paper proposes a spectrum allocation strategy based on Quality of Service(QoS) grading in cognitive radio. It constructs a comprehensive decision model which can discriminate the cognitive users’ QoS level according to their business types. It employs the spectrum allocation for cognitive customers combined with Collaborative Max Sum Bandwidth(CMSB) algorithm. Simulation experimental results demonstrate that the proposed spectrum allocation strategy can meet the QoS demands of cognitive users, and ensure the higher system throughput and access fairness.
Key words:
cognitive radio,
spectrum allocation,
Quality of Service(QoS),
system throughput,
fairness
中图分类号:
朱冰莲, 裴光术, 张磊, 何志光, 卢颢. 认知无线电中基于QoS分级的频谱分配策略[J]. 计算机工程, 2012, 38(10): 92-94.
SHU Bing-Lian, FEI Guang-Shu, ZHANG Lei, HE Zhi-Guang, LEI Hao. Spectrum Allocation Strategy Based on QoS Grading in Cognitive Radio[J]. Computer Engineering, 2012, 38(10): 92-94.