Spatial Modulation-Aided Cooperative NOMA: Performance Analysis and Comparative Study

Qiang Li; Miaowen Wen; Ertugrul Basar; H. Vincent Poor; Fangjiong Chen

doi:10.1109/JSTSP.2019.2898099

Spatial Modulation-Aided Cooperative NOMA: Performance Analysis and Comparative Study

Qiang Li, Miaowen Wen, Ertugrul Basar, H. Vincent Poor, Fangjiong Chen

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

The combination of non-orthogonal multiple access (NOMA) and multiple-input multiple-output (MIMO) signaling is capable of providing significantly improved spectral efficiency and effective multiple access. However, conventional MIMO-NOMA entails significantly increased power consumption and implementation complexity. Inspired by the essence of spatial modulation (SM), in this paper, a novel three-node cooperative relaying system (CRS) using SM-aided NOMA, termed CRS-SM-NOMA, is proposed, in which the messages for two users are conveyed by two different information-bearing units of SM. As the reference scheme, conventional CRS-NOMA is further re-investigated with multiple receive antennas. Besides the achievable rate, which is adopted by most of the existing NOMA works as the performance metric, the bit error rate (BER) of CRS-SM-NOMA and CRS-NOMA is analyzed assuming maximum-likelihood detection. Approximate bit error probability expressions are derived in closed form for both users. Simulation results verify the analysis and show that the proposed CRS-SM-NOMA outperforms conventional CRS-NOMA and SM-OMA in terms of the BER as well as ergodic sum rate.

Original language	English (US)
Article number	8636968
Pages (from-to)	715-728
Number of pages	14
Journal	IEEE Journal on Selected Topics in Signal Processing
Volume	13
Issue number	3
DOIs	https://doi.org/10.1109/JSTSP.2019.2898099
State	Published - Jun 2019

All Science Journal Classification (ASJC) codes

Signal Processing
Electrical and Electronic Engineering

Keywords

Bit error rate
cooperative relaying
non-orthogonal multiple access
spatial modulation
sum rate

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title = "Spatial Modulation-Aided Cooperative NOMA: Performance Analysis and Comparative Study",

abstract = "The combination of non-orthogonal multiple access (NOMA) and multiple-input multiple-output (MIMO) signaling is capable of providing significantly improved spectral efficiency and effective multiple access. However, conventional MIMO-NOMA entails significantly increased power consumption and implementation complexity. Inspired by the essence of spatial modulation (SM), in this paper, a novel three-node cooperative relaying system (CRS) using SM-aided NOMA, termed CRS-SM-NOMA, is proposed, in which the messages for two users are conveyed by two different information-bearing units of SM. As the reference scheme, conventional CRS-NOMA is further re-investigated with multiple receive antennas. Besides the achievable rate, which is adopted by most of the existing NOMA works as the performance metric, the bit error rate (BER) of CRS-SM-NOMA and CRS-NOMA is analyzed assuming maximum-likelihood detection. Approximate bit error probability expressions are derived in closed form for both users. Simulation results verify the analysis and show that the proposed CRS-SM-NOMA outperforms conventional CRS-NOMA and SM-OMA in terms of the BER as well as ergodic sum rate.",

keywords = "Bit error rate, cooperative relaying, non-orthogonal multiple access, spatial modulation, sum rate",

author = "Qiang Li and Miaowen Wen and Ertugrul Basar and Poor, {H. Vincent} and Fangjiong Chen",

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AU - Li, Qiang

AU - Wen, Miaowen

AU - Basar, Ertugrul

AU - Poor, H. Vincent

AU - Chen, Fangjiong

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AB - The combination of non-orthogonal multiple access (NOMA) and multiple-input multiple-output (MIMO) signaling is capable of providing significantly improved spectral efficiency and effective multiple access. However, conventional MIMO-NOMA entails significantly increased power consumption and implementation complexity. Inspired by the essence of spatial modulation (SM), in this paper, a novel three-node cooperative relaying system (CRS) using SM-aided NOMA, termed CRS-SM-NOMA, is proposed, in which the messages for two users are conveyed by two different information-bearing units of SM. As the reference scheme, conventional CRS-NOMA is further re-investigated with multiple receive antennas. Besides the achievable rate, which is adopted by most of the existing NOMA works as the performance metric, the bit error rate (BER) of CRS-SM-NOMA and CRS-NOMA is analyzed assuming maximum-likelihood detection. Approximate bit error probability expressions are derived in closed form for both users. Simulation results verify the analysis and show that the proposed CRS-SM-NOMA outperforms conventional CRS-NOMA and SM-OMA in terms of the BER as well as ergodic sum rate.

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KW - sum rate

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