基于QoS的认知OFDM无线电系统自适应资源分配

doi:10.3969/j.issn.0255-8297.2011.04.008

Journal of Applied Sciences ›› 2011, Vol. 29 ›› Issue (4): 381-384.doi: 10.3969/j.issn.0255-8297.2011.04.008

• Communication Engineering • Previous Articles Next Articles

Adaptive Resource Allocation Based on QoS in OFDM Cognitive Radio System

XU Shuang, ZHAO Xiao-hui, YUAN Hao

College of Communication Engineering, Jilin University, Changchun 130012, China

Received:2011-01-13 Revised:2011-05-30 Online:2011-07-30 Published:2011-05-30

Abstract

Abstract:

Abstract: Based on the characteristics of cognitive radio and transmission properties of OFDM, an adaptive resource allocation algorithm in OFDM cognitive radio system is proposed. By keeping the interference introduced to the primary users within a tolerable range in sub-carrier allocation and power allocation, the proposed algorithm maximizes the system throughout. In addition, this scheme can guarantee quality of service(QoS)
among secondary users based on a fairness principle. Simulation results show performance and effectiveness of this algorithm.

Key words: resource allocation, cognitive radio, OFDM, quality of service(QoS)

CLC Number:

TN929.5

XU Shuang, ZHAO Xiao-hui, YUAN Hao. Adaptive Resource Allocation Based on QoS in OFDM Cognitive Radio System[J]. Journal of Applied Sciences, 2011, 29(4): 381-384.

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Adaptive Resource Allocation Based on QoS in OFDM Cognitive Radio System

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