Probabilistic Radio Resource Allocation Over CDMA-Based Cognitive Radio Networks

被引：4

作者：

Mahyari, Mohammad Mirtavoosi ^{[1
]}

Shojaeifard, Arman ^{[1
]}

Shikh-Bahaei, Mohammad ^{[1
]}

机构：

[1] Kings Coll London, CTR, London WC2R 2LS, England

来源：

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2015年 / 64卷 / 08期

关键词：

Cognitive radio (CR); opportunistic spectrum sharing; resource allocation; spectral efficiency; FADING CHANNELS; OPTIMIZATION; COMBINATION; ADAPTATION; ACCESS;

D O I：

10.1109/TVT.2014.2360814

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A novel probabilistic radio resource allocation algorithm is proposed for code-division multiple-access cognitive radio networks. Our method incorporates a sensing-based hybrid access- and interference-limited spectrum sharing strategy to maximize the achievable spectral efficiency of cognitive users (CUs) while guaranteeing the quality-of-service (QoS) requirements of licensed services. Specifically, the enhanced performance for CUs is achieved through optimal joint power and rate adaptation to the time-varying multiuser interference and frequency-selective fading channel conditions. We show that this scheme can improve the average spectral efficiency of CUs, while satisfying the peak and average received-interference constraints at the primary receiver.

引用

页码：3560 / 3565

页数：6

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