具有能量采集驱动的MIMO广播信道和多址接入信道最优传输方案  

Optimal Transmission Policy for Energy-harvesting Powered MIMO Broadcasting and Multi-access Channels

作　　者：李文明[1] 

机构地区：[1]复旦大学通信科学与工程系

出　　处：《微型电脑应用》2015年第5期54-60,共7页Microcomputer Applications

摘　　要：提出了一个新颖的方法来获得具有能量采集驱动的节点的最优传输方案,结合凸优化理论探索了多输入多输出(MIMO:multi-input multi-output)广播信道(BC:broadcasting channel)和MIMO多址接入信道(MAC:multi-access channel)网络结构中最优传输,设计了低复杂度的上下行对偶性嵌套优化算法、阻塞协作迭代提升算法获得信道传输中最大化的总吞吐量并研究所提出算法的实时、在线操作。其方案将对未来能量采集驱动的MIMO BC和MIMO MAC通信网络的设计和优化提供理论指导。This paper develops a novel approach to obtain optimal transmission strategy for the energy-harvesting node. With convex optimization tools, it explores optimal transmission for MIMO BC and MIMO MAC network models, and provides a low-complexity uplink-downlink duality ＂nested optimization＂ method and iterative block coordinate ascent algorithm to obtain the optimal transmission policies that maximize the weighted sum-throughput, and it researches their online implementations for practical energy harvesting communication systems. The proposed approach will provide theoretic guidelines for practical designs of the future energy-harvesting MIMO BC and MIMO MAC communication networks.

关 键 词：能量采集 广播信道 多址接入信道 功率分配 凸优化 迭代 高能效通信 

分 类 号：TN919.1[电子电信—通信与信息系统]