标题： 基于互相关和子空间投影技术的鲁棒分布式波束成形研究 显示英文标题

标题： Study of Robust Distributed Beamforming Based on Cross-Correlation and Subspace Projection Techniques

摘要： 在这项工作中，我们提出了一种新颖的鲁棒分布式波束成形（RDB）方法，以减轻基于中继的无线网络中通道错误的影响，该方法利用了目的地接收到的来自中继的数据与系统输出之间的互相关性。 所提出的RDB方法，称为互相关和子空间投影（CCSP）RDB，考虑了系统中的总中继发射功率约束，并且目标是最 大化输出信干噪比（SINR）。 中继节点配备了放大前向（AF）协议，我们假设中继处的信道状态信息（CSI）是不完美已知的，并且源和目的地之间没有直接链路。 CCSP不需要任何昂贵的优化过程，并且仿真表明其性能优于之前报道的算法。 显示英文摘要

摘要： In this work, we present a novel robust distributed beamforming (RDB) approach to mitigate the effects of channel errors on wireless networks equipped with relays based on the exploitation of the cross-correlation between the received data from the relays at the destination and the system output. The proposed RDB method, denoted cross-correlation and subspace projection (CCSP) RDB, considers a total relay transmit power constraint in the system and the objective of maximizing the output signal-to-interference-plus-noise ratio (SINR). The relay nodes are equipped with an amplify-and-forward (AF) protocol and we assume that the channel state information (CSI) is imperfectly known at the relays and there is no direct link between the sources and the destination. The CCSP does not require any costly optimization procedure and simulations show an excellent performance as compared to previously reported algorithms.