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首页> 外文期刊>AEU: Archiv fur Elektronik und Ubertragungstechnik: Electronic and Communication >Multiuser MIMO Downlink Transmission using Block Diagonalization and Generalized Spatial Modulation Techniques
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Multiuser MIMO Downlink Transmission using Block Diagonalization and Generalized Spatial Modulation Techniques

机译：使用块对角化和广义空间调制技术的多用户MIMO下行链路传输

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摘要

This paper presents a novel scheme to transmit signals in a Multiuser Multiple-Input Multiple-Output (MU-MIMO) downlink scenario. The proposed scheme combines Block Diagonalization (BD) and Generalized Spatial Modulation (SM) Techniques. The SM technique is used to add a broadcast transmission to the conventional MU-MIMO BD scheme, which results in a novel BDSM proposal. We compare the proposed BDSM scheme with the conventional BD scheme considering the Bit Error Rate (BER) performance, detection complexity, and spectral efficiency using Maximum Likelihood (ML) joint-detection and ML segmented-detection algorithms. A correlated fading channel with Rayleigh distribution is considered. Simulations results show that the broadcast transmission can be added to the BD scheme without performance impairment. The proposed BDSM system has performance gains of 4 dB for error rates of 10(-3) approximately when some bits are considered as broadcast transmission in the BD scheme. In general, the proposed detection algorithms have a tradeoff between the BER performance and the detector's complexity. (C) 2016 Elsevier GmbH. All rights reserved.
机译：本文提出了一种在多用户多输入多输出（MU-MIMO）下行链路情况下传输信号的新颖方案。所提出的方案结合了块对角化（BD）和广义空间调制（SM）技术。 SM技术用于将广播传输添加到常规MU-MIMO BD方案中，从而产生了新颖的BDSM提议。考虑到误码率（BER）性能，检测复杂性和使用最大似然（ML）联合检测和ML分段检测算法的频谱效率，我们将建议的BDSM方案与常规BD方案进行了比较。考虑具有瑞利分布的相关衰落信道。仿真结果表明，可以将广播传输添加到BD方案中，而不会影响性能。当在BD方案中某些比特被视为广播传输时，对于10（-3）的误码率，所提出的BDSM系统的性能增益为4 dB。通常，所提出的检测算法在BER性能和检测器复杂度之间进行权衡。 （C）2016 Elsevier GmbH。版权所有。

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