计算机工程2017，Vol.43Issue(2)：171-175,182,6.DOI:10.3969/j.issn.1000-3428.2017.02.028
考虑频谱感知错误的多载波认知无线电资源分配算法
Resource Allocation Algorithm of Multicarrier Cognitive Radio Considering Spectrum Sensing Error
摘要
Abstract
The interference in Cognitive Radio(CR) resource allocation introduced by the Secondary User(SU) to the Primary User(PU) derives from two aspects:Out-of-Band Leakage (OOBL) and Spectrum Sensing Error (SSE).Filter Bank Multicarrier (FBMC) has small OOBL and high spectral efficiency in comparison with Orthogonal Frequency Division Multiplexing(OFDM).Full consideration of interference sources can reduce the interference from SU to PU and improve CR system throughput.So this paper proposes a resource allocation algorithm considering SSE in CR network,establishes the interference model,decomposes resource allocation into subcarrier allocation and power allocation,and allocates the power to SU under both interference constraint and power constraint.Simulation results based on FBMC and OFDM show that the proposed algorithm causes less interference to PU.The CR system can obtain greater throughput,and the performance of FBMC in interference and throughput is better than that of OFDM.关键词
频谱感知错误/认知无线电/滤波器组/资源分配/正交频分复用/多载波技术Key words
spectrum sensing error/Cognitive Radio (CR)/filter bank/resource allocation/Orthogonal Frequency Division Multiplexing(OFDM)/multicarrier technology分类
信息技术与安全科学引用本文复制引用
庄陵,马龙..考虑频谱感知错误的多载波认知无线电资源分配算法[J].计算机工程,2017,43(2):171-175,182,6.基金项目
重庆市教委科学技术研究项目(KJ1500435,KJ1500147). （KJ1500435,KJ1500147）
