期刊文献+

基于组间公平的多天线多播系统资源分配

Inter-Group Fairness-Based Resource Allocation for Multi-Antenna Multicast Systems
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摘要 提出一种多天线多播系统中最大化多播系统容量的资源分配算法.考虑一个包含多个多播组的多天线无线多播场景,针对资源分配与下行链路预编码展开研究,给出资源受限且各多播组遵循最少子载波数限制时多天线多播系统资源分配的目标函数.为降低运算复杂度,提出一个3阶段的次优解法,将多播预编码、子载波分配和功率分配分别实现.仿真结果表明,无论是在单播系统还是组播系统中,所提算法都能够在保证组间公平的同时显著提高系统的吞吐量. 提出一种多天线多播系统中最大化多播系统容量的资源分配算法.考虑一个包含多个多播组的多天线无线多播场景,针对资源分配与下行链路预编码展开研究,给出资源受限且各多播组遵循最少子载波数限制时多天线多播系统资源分配的目标函数.为降低运算复杂度,提出一个3阶段的次优解法,将多播预编码、子载波分配和功率分配分别实现.仿真结果表明,无论是在单播系统还是组播系统中,所提算法都能够在保证组间公平的同时显著提高系统的吞吐量.
出处 《北京邮电大学学报》 EI CAS CSCD 北大核心 2011年第S1期77-80,94,共5页 Journal of Beijing University of Posts and Telecommunications
基金 国家自然科学基金项目(60972076 61072052)
关键词 多播 多天线 预编码 资源分配 multicast multiple antenna precoding resource allocation
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参考文献8

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