基于CC-RB算法的认知无线网络信道分配研究  

Channel Allocation Based on CC-RB for Cognitive Wireless Network

作　　者：谢冰[1,2] 李莉[1] 韩力[3] 胡贵军[1] 

机构地区：[1]吉林大学通信工程学院,长春130012 [2]总参通信工程设计研究院无线室,沈阳110005 [3]吉林大学物理学院,长春130012

出　　处：《吉林大学学报（信息科学版）》2016年第1期16-22,共7页Journal of Jilin University（Information Science Edition）

基　　金：国家自然科学基金资助项目(61177066)

摘　　要：针对基于规则的信道分配(RB:Rule-Based)算法假设条件过于理想,实际应用性不强的缺点,在考虑各节点不同信道的吞吐量不同的基础上,提出一种改进的基于信道容量的规则信道分配(CC-RB:Channel Capatty-Rule Based)算法。该算法引入信道容量矩阵,在进行信道分配时为节点分配质量较好的信道。仿真结果表明,CC-RB算法在复杂度增加不大的情况下,系统吞吐量和公平性都较RB算法有较大提高,在干扰距离为100 m,认知节点数为80个时,CC-RB算法比RB算法的吞吐量增加了133%,公平性增加了96%,能更好满足实际需要。To solve the shortcomings that the Rule-based Channel allocation algorithm does not fit the practical application,we propose an algorithm considering the channel capacity and assigns the channel which has the maximum throughput to the node. The simulation results show that the proposed algorithm has greatly enhanced throughput and fairness,and the complexity does not increase a lot. When the interference distance of 100 m and the number of cognitive nodes is 80,the proposed algorithm has 133% increase in throughput and 96% in fairness. The proposed algorithm can meet the actual needs better.

关 键 词：认知无线网络 信道分配 信道容量 

分 类 号：TN92[电子电信—通信与信息系统]