Optimal Power Allocation Between Unicast and Multicast Messages in Wireless Relay-Multicasting Networks Using Superposition Coding

作     者：Wui, Jung-Hwa Kim, Dongwoo 

作者机构：Hanyang Univ Dept Elect Engn & Comp Sci Ansan 426791 South Korea 

出 版 物：《IEEE COMMUNICATIONS LETTERS》 (IEEE Commun Lett)

年 卷 期：2011年第15卷第11期

页      面：1159-1161页

核心收录：

学科分类：0810[工学-信息与通信工程] 0808[工学-电气工程] 08[工学] 

基　　金：Hanyang University [HY-2010-N] 

主　　题：Optimal power allocation a multicast-balancing solution wireless relay-multicasting networks superposition coding 

摘      要：This letter deals with optimal power allocation between unicast and multicast messages in a wireless relay-multicasting network using superposition coding. A so-called multicast-balancing solution is provided and proved to be optimal, which maximizes the sum of data rates received at multiple destinations. And its optimality is also verified by numerical investigation. The proposed solution is a generalized version of the unicast-balancing solution that is optimal for a wireless relay system with only a single destination.