New Resource Allocation Scheme for Cognitive Relay Networks with Opportunistic Access

被引：0

作者：

Zafar, Ammar ^{[1
]}

Alouini, Mohamed-Slim ^{[1
]}

Chen, Yunfei

Radaydeh, Redha M. ^{[1
]}

机构：

[1] KAUST, EE Program, Thuwal, Makkah Province, Saudi Arabia

来源：

2012 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC) | 2012年

关键词：

Cognitive relays; opportunistic access; resource allocation; symbol error rate; RADIO NETWORKS;

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In this paper, a new resource allocation scheme to minimize Symbol Error rate (SER) for relay assisted cognitive radio networks is studied. A cognitive relay network with amplify-and-forward (AF) fixed gain relays and opportunistic access to the licensed spectrum is considered. The SER objective function and the optimization constraints are derived first. The resource allocation algorithm is then derived using the Langrangian multiplier method. Closed form expressions are derived for the source and relay powers and, symbol time. Analytical results show that the optimal power allocation follows an extended water-filling solution.

引用

页数：5

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