混合大规模天线下行链路的交织训练与基于训练的传输设计
信息论
2018-07-04 v2 math.IT
摘要
本文研究了混合大规模天线单用户（SU）和多用户（MU）系统中，以中断概率为性能指标的基于波束的训练设计与传输设计的联合优化问题。对于SU系统，我们提出了一种交织训练设计，将反馈和训练过程串联起来，从而使训练长度能够自适应于信道实现。我们推导了所提交织训练的平均训练长度和中断概率的精确解析表达式。对于MU系统，我们提出了一种基于波束的交织训练、波束分配和MU数据传输的联合设计方案。针对波束分配，我们提供了两种具有不同复杂度-性能折衷的解决方案。解析结果和仿真表明，对于SU和MU系统，所提出的联合训练与传输设计均能达到与传统全训练方案相同的中断性能，但显著节省了训练开销。
引用
@article{arxiv.1710.06949,
title = {Interleaved Training and Training-Based Transmission Design for Hybrid Massive Antenna Downlink},
author = {Cheng Zhang and Yindi Jing and Yongming Huang and Luxi Yang},
journal= {arXiv preprint arXiv:1710.06949},
year = {2018}
}
备注
16 Pages (double column), 11 figures. This work has been accepted by the IEEE Journal of Selected Topics in Signal Processing (JSTSP), Special Issue on Hybrid Analog - Digital Signal Processing for Hardware-Efficient Large Scale Antenna Arrays. This version is different from the former one due to the revisions made for the comments of 1st and 2nd round review