编码V-BLAST的最优功率和速率分配：平均优化
Optimum Power and Rate Allocation for Coded V-BLAST: Average Optimization
摘要：
提出了一种用于编码V-BLAST性能分析和优化的分析框架。平均功率和/或速率分配，以最大限度地减少中断概率，以及他们的鲁棒性和对偶问题进行了研究。紧凑，封闭形式的最佳分配和相应的系统性能的表达式。均匀的功率分配被证明是接近最佳的低中断制度与最佳速率分配相结合。平均速率分配提供了最大的性能改进（额外的分集增益），并且平均功率分配提供了受发射天线的数量限制的适度SNR增益，但不增加分集增益。对偶问题具有与原问题相同的解。所有这些分配策略被证明是强大的。报告的结果也适用于编码的多用户检测和信道均衡系统依赖于连续干扰消除。
英文摘要：
An analytical framework for performance analysis and optimization of coded V-BLAST is developed. Average power and/or rate allocations to minimize the outage probability as well as their robustness and dual problems are investigated. Compact, closed-form expressions for the optimum allocations and corresponding system performance are given. The uniform power allocation is shown to be near optimum in the low outage regime in combination with the optimum rate allocation. The average rate allocation provides the largest performance improvement (extra diversity gain), and the average power allocation offers a modest SNR gain limited by the number of transmit antennas but does not increase the diversity gain. The dual problems are shown to have the same solutions as the primal ones. All these allocation strategies are shown to be robust. The reported results also apply to coded multiuser detection and channel equalization systems relying on successive interference cancelation.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
