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首页> 外文期刊>Wireless Communications, IEEE Transactions on >A Novel Receiver Design for Single-Carrier Frequency Domain Equalization in Broadband Wireless Networks with Amplify-and-Forward Relaying
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A Novel Receiver Design for Single-Carrier Frequency Domain Equalization in Broadband Wireless Networks with Amplify-and-Forward Relaying

机译：具有放大转发中继功能的宽带无线网络中单载波频域均衡的新型接收器设计

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摘要

In this paper, we propose an efficient receiver design for single carrier frequency-domain equalization (SC-FDE) for relay-assisted transmission scenario over frequency selective channels. Building upon our earlier work, we propose a novel minimum mean square error (MMSE)-based receiver design tailored to broadband cooperative networks. We show that, by incorporating linear processing techniques, our MMSE-based receiver is able to collect full antenna and multipath diversity gains, while maintaining low complexity implementation. Specifically, under the assumption of perfect power control and high signal-to-noise ratio (SNR) for the underlying links and assuming either of source-to-relay (S ș2; R) or relay-to-destination (R ș2; D) links to be frequency selective Rician fading, our performance analysis demonstrates that the proposed receiver is able to achieve a maximum diversity order of min {L_{SR}},{L_{RD}} + L_{SD} + 2, where L_{SR}, L_{RD}, and L_{SD} are the channel memory lengths for S ș2; R, R ș2; D, and source-to-destination (S ș2; D) links, respectively. Simulation results demonstrate that our proposed receiver outperforms the conventional cooperative MMSE-SC-FDE receiver by performing close to the matched filter bound (MFB).
机译：在本文中，我们提出了一种用于单载波频域均衡（SC-FDE）的高效接收机设计，用于频率选择信道上的中继辅助传输方案。在我们之前的工作的基础上，我们提出了一种针对宽带协作网络的新颖的基于最小均方误差（MMSE）的接收机设计。我们证明，通过结合线性处理技术，我们基于MMSE的接收机能够收集完整的天线和多径分集增益，同时保持低复杂度的实现。具体来说，在理想的功率控制和基础链路的高信噪比（SNR）的假设下，并假设源对中继（S ș2; R）或中继到目的地（R ș2; D） ）链接为频率选择性Rician衰落，我们的性能分析表明，提出的接收机能够实现最小{L_ {SR}}，{L_ {RD}} + L_ {SD} + 2的最大分集阶数，其中L_ {SR}，L_ {RD}和L_ {SD}是S ș2的通道存储长度； R，Rș2； D和源到目的地（S ș2; D）链接。仿真结果表明，我们提出的接收器通过执行接近于匹配滤波器边界（MFB）的性能优于传统的协作MMSE-SC-FDE接收器。

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