认知无线电网络中基于需求的多小区频谱分配算法  

Demand-based spectrum allocation algorithm in multi-cells cognitive radio network

作　　者：吴非[1] 陈劼[1] 廖楚林[1] 李少谦[1] 

机构地区：[1]电子科技大学通信抗干扰技术国家级重点实验室,成都610054

出　　处：《计算机应用》2008年第1期14-16,共3页journal of Computer Applications

基　　金：国家自然科学基金资助项目(60496313)

摘　　要：提出一种认知无线电网络中基于需求的多小区频谱分配算法。使用图论着色模型,结合频谱质量分级概念,根据小区内需求情况,该算法将网络中周期检测到的可用频谱分配给各个认知小区,最大化满足需求的同时,为业务提供服务质量保障。仿真结果表明:与原有算法相比,该算法能更好地满足网络需求。A demand-based spectrum allocation algorithm between cognitive radio cells was proposed. Based on the combination of graph coloring model and the concept of spectrum quality grading, the proposed algorithm allocated the available spectrum to cognitive radio cells to meet demand maximally under QoS guarantee. Simulation results show that, compared with the original algorithm, the proposed algorithm can better satisfy demand in the network.

关 键 词：认知无线电 频谱质量分级 图论着色 服务质量 

分 类 号：TN915[电子电信—通信与信息系统]