重庆邮电大学学报（自然科学版）2019，Vol.31Issue(1)：11-18,8.
干扰受限的增量型机会中继选择协作通信
Incremental opportunistic relay selection cooperative communication with interference limited
摘要
Abstract
Cooperative communication, which enables users to transmit information in a cooperative way, is one of the key technologies used in the next generation wireless communication systems to improve spectral efficiency. The expected signal in the actual wireless communication environment will not only be affected by noise and channel fading, but also may be affected by the co-channel interference (CCI) from other user's signals in the same frequency band. A large number of CCI will replace noise as the main factor affecting the quality of wireless communication with the increase of the number of users, which is called interference limitation. An incremental decode-and-forward opportunity relay selection cooperative communication strategy under the constraint of total power of the whole network is proposed. The cooperative communication performance of this strategy in the environment of Nakagami/I.I.D.Nakagami channel fading and CCI with interference limited is studied. Theoretical analysis and simulation results show that the proposed cooperative communication strategy can a-chieve cooperative diversity gain, resist channel fading and reduce the influence of CCI with interference limitation effectively. When the power of source node and relay node can be adjusted flexibly, reasonable power allocation can further improve the performance of cooperative communication.关键词
增量型机会中继选择/协作通信/解码转发/共道干扰/干扰受限Key words
incremental opportunistic relay selection/cooperative communication/decode-and-forward/co-channel interference/interference limited分类
信息技术与安全科学引用本文复制引用
王明伟,张会生,刘勃..干扰受限的增量型机会中继选择协作通信[J].重庆邮电大学学报（自然科学版）,2019,31(1):11-18,8.基金项目
国家自然科学基金 (61401261) （61401261）
陕西省科技厅工业公关项目 (2017GY-091) （2017GY-091）
陕西省咸阳市科技局项目 (2015K03-17) （2015K03-17）
陕西科技大学博士科研启动基金 (2019BJ-03) （2019BJ-03）
