ON PERFORMANCE OF JUDGING REGION AND POWER ALLOCATION FOR WIRELESS NETWORK CODING WITH ASYMMETRIC MODULATION

摘要：

We investigate a decode and forward (DF) scheme of Asymmetric modulation suited for two-way relay (TWR) with network coding. The considering network coding consists of two time-slots: two users transmit wireless signal to the relay in time-slot 1, and the processed signal is broadcasted in time-slot 2 by the relay. With the received asymmetric modulated signals by relay in time-slot 1, the judging, coding and power allocating problems are investigated. A judging region (JR) scheme is proposed to solve the issues and the symbol error ratio (SER) is derived. We also give the optimized power allocation method of JR scheme according to different asymmetric modulations. The performance evaluations show correctness of SER expression and efficiency of power allocation method.

作者: Xiaoguang Zhang Yonghua Li Jiaru Lin Li Guo

作者单位: Key Lab of Universal Wireless Communications, Ministry of Education Beijing University of Posts and Telecommunications Beijing, China

会议类型: 国际会议

会议名称: 2011 International Symposium on Network Coding(2011网络编码国际会议 NETCOD 2011)

会议地点: 北京

会议语种:英文

页码: 1-4

在线出版日期: 2011-07-25（万方平台首次上网日期，不代表论文的发表时间）