双跳多信道多用户中继的联合最优信道与功率分配
信息论
2016-11-18 v4 性能
math.IT
摘要
我们考虑在具有多个信道和多个用户的单中继协作系统中,联合优化信道配对、信道-用户分配和功率分配,以最大化加权和速率的问题。考虑了常见的中继策略,并对单个发射机和所有发射机的总发射功率施加了约束。联合优化问题自然导致一个混合整数规划。尽管通常预期此类问题难以处理,但我们构建了一种高效算法来寻找最优解,其计算复杂度随信道数和用户数呈多项式增长。我们进一步通过数值实验证明,联合最优解可以显著提高系统性能,优于其次优替代方案。
引用
@article{arxiv.1102.5314,
title = {Jointly Optimal Channel and Power Assignment for Dual-Hop Multi-channel Multi-user Relaying},
author = {Mahdi Hajiaghayi and Min Dong and Ben Liang},
journal= {arXiv preprint arXiv:1102.5314},
year = {2016}
}
备注
This is the full version of a paper to appear in the IEEE Journal on Selected Areas in Communications, Special Issue on Cooperative Networking - Challenges and Applications (Part II), October 2012