四川师范大学学报（自然科学版）2011，Vol.34Issue(5)：771-774,4.DOI:10.3969/j.issn.1001-8395.2011.05.034
认知环境中一种改进的CSMA接入方法
An Improved CSMA Access Control Method for Cognitive Environment
摘要
Abstract
Cognitive radio technology is an intelligent wireless radio technology which is able to sense the wireless environment and identify available spectrum resources. It can access intelligently and dynamically thus enhancing the utilization of spectrum resources. In this paper, based on 802.11 CSMA/CA and considering the characteristics of the cognitive radio, we propose an improved CSMA access control method to improve the RTS-CTS frame, the virtual carrier sense, the backoff mechanism, and then we analysis its per-formance.关键词
认知无线电/接入方法/CSMAKey words
cognitive radio/ access control method/ CSMA分类
信息技术与安全科学引用本文复制引用
彭伟夫,江天明..认知环境中一种改进的CSMA接入方法[J].四川师范大学学报（自然科学版）,2011,34(5):771-774,4.基金项目
四川省科技支撑计划基金(2009GZ0033)资助项目 （2009GZ0033）
