Robust Transceiver Design for Full-Duplex Decode-and-Forward Relay-Assisted MIMO Systems
Robust Transceiver Design for Full-Duplex Decode-and-Forward Relay-Assisted MIMO Systems
复制标题
DOI：
10.1109/ieeeconf51394.2020.9443494
复制
发表时间：
2019-12
期刊：
影响因子：
--
通讯作者：
Hossein Esmaeili;Ali Kariminezhad;A. Sezgin
中科院分区：
文献类型：
--
作者：
Hossein Esmaeili;Ali Kariminezhad;A. Sezgin
针对不可解系统不确定性的稳健收发器设计对于实现可靠通信至关重要。例如，全双工通信在消除自干扰时就存在这种不确定性，因为由于信道知识不完善，一些残余自干扰（RSI）仍然没有消除。在本文中，我们考虑了一种MIMO中继系统，其中所考虑的解码和转发（DF）混合中继可以在半双工或全双工模式下工作，并且模式根据RSI强度自适应变化。我们研究了一个鲁棒收发器设计问题，该问题在自干扰信道不确定性约束下最大限度地提高了最坏情况下RSI的吞吐量。在此基础上，提出了一种迭代求解局部最优解的有效算法。
Robust transceiver design against unresolvable system uncertainties is of crucial importance for reliable communication. For instance, full-duplex communication suffers from such uncertainties when canceling the self-interference, since some residual self-interference (RSI) remains uncanceled due to imperfect channel knowledge. In this paper, we consider a MIMO relay system, where the considered decode-and-forward (DF) hybrid relay can operate in either half-duplex or full-duplex mode, and the mode changes adaptively depending on the RSI strength. We investigate a robust transceiver design problem, which maximizes the throughput rate of the worst-case RSI under the self-interference channel uncertainty bound constraint. Furthermore, we propose an efficient algorithm to obtain a local optimal solution iteratively.