MAC and Routing Protocols for AD-HOC Cognitive Radio Networks

被引:0
作者
Rajesh, L. [1 ]
Hemalatha, M., V [1 ]
机构
[1] Anna Univ, Dept Elect Engn, Madras Inst Technol Campus, Madras 44, Tamil Nadu, India
来源
PROCEEDINGS OF THE 8TH WSEAS INTERNATIONAL CONFERENCE ON APPLIED ELECTROMAGNETICS, WIRELESS AND OPTICAL COMMUNICATIONS | 2010年
关键词
Cognitive Radio Network; Cognitive Radio MAC; Network Simulator (NS-2);
D O I
暂无
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
Cognitive radio network is a new emerging research area recently. It enhances the existing software-defined radio [1], whose physical layer behaviour is largely defined in software. Cognitive radio has the following characteristics [2]. First, it is aware of its environment and its capabilities. Second, it is able to independently alter its physical layer behaviour based on its previous experience and its current environment. When spectrum environment changes around cognitive user, it is capable of sensing these changes and independently changing its physical layer settings such as transmission power, channel selection and etc to meet some constraints or QOS requirements of the users. In this paper, NS-2 is used to extend it to support cognitive radio network simulation with single radio multichannel and the improved MAC provides efficient spectrum utilisation. And the performance metric is evaluated using AODV routing protocol.
引用
收藏
页码:45 / 48
页数:4
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