Aggregation-based Spectrum Allocation Algorithm in Cognitive Radio Networks

被引：0

作者：

Li, Yun ^{[1
,2
]}

Zhao, Lili ^{[1
]}

Wang, Chonggang ^{[3
]}

Daneshmand, Ali ^{[4
]}

Hu, Qing ^{[1
]}

机构：

[1] Chongqing Univ Posts & Telecommun, Lab Wireless Networks, Chongqing 400065, Peoples R China

[2] Southeast Univ China, Natl Mobile Commun Res Lab, Nanjing 210096, Jiangsu, Peoples R China

[3] Inter Digital Commun, King Of Prussia, PA 19406 USA

[4] AT&T Labs, Middletown, NJ USA

来源：

2012 IEEE NETWORK OPERATIONS AND MANAGEMENT SYMPOSIUM (NOMS) | 2012年

基金：

美国国家科学基金会;

关键词：

Cognitive radio; Spectrum allocation; Spectrum aggregation; Graph coloring; ASSIGNMENT; FAIRNESS;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In cognitive radio networks, the idle spectrum bands that cognitive users sensed are usually discontinuous. Only one idle spectrum band may not be able to fulfill cognitive users' bandwidth requirements. In order to let cognitive users access allocated spectrum bands successfully and further improve the efficiency of spectrum utilization, we propose spectrum aggregation-based graph coloring algorithm (SAGCA), a spectrum allocation algorithm in cognitive radio networks. SAGCA considers bandwidth requirements of cognitive users and limitation of spectrum range that equipment can utilize due to hardware constraint. Numerical results show that the proposed algorithm can achieve greater performance in total bandwidth and percentage of cognitive users that networks can support compared to the original algorithm.

引用

页码：506 / 509

页数：4

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