Combined Adaptive Cooperative with Cross-Layer Design under Imperfect Feedback

摘要：

　　In this paper,a Cooperative Cross-Layer (CCL) scheme based on the adaptive cooperative system is proposed to improve the system performance,which is scheduled through combining multilevel adaptive modulation (AM) at the physical layer with truncated automatic repeat request (ARQ) protocol at the data link layer.The transmitter receives the feedback of the modulation mode and ARQ from the receiver.This paper derives the closed-form expressions of the spectral efficiency and outage probability for the CCL.It shows by simulation that the CCL system has better performance than the original adaptive cooperative system.Under outdated feedback,we also analyze the impact of the retransmission number,delay-time and the number of cooperative users on the performance of the CCL system.

关键词： cross-layer design adaptive modulation(AM) MIMO cooperative system imperfect feedback

作者: Lili Guo Yang Wang

作者单位: Department of Electronics Communication Engineering Shenzhen Institute of Information Technology She Department of Traffic and Environment Shenzhen Institute of Information Technology Shenzhen, China

会议类型: 国际会议

会议名称: 2012 IEEE 14th International Conference on Communication Technology(2012年第十四届通信技术国际会议(ICCT 2012))

会议地点: 成都

会议语种:英文

页码: 1065-1069

在线出版日期: 2012-11-09（万方平台首次上网日期，不代表论文的发表时间）