1st Workshop on Fog Computing-Based Radio Access Networks for 5G

Research Article

Performance Analysis of Opportunistic Multi-antenna Relay Selection over Nakagami-m Fading Channels Based RAN for 5G

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  • @INPROCEEDINGS{10.4108/eai.13-7-2017.2270733,
        author={Dongyu Wang and Xiaoxiang Wang and Feng Wang},
        title={Performance Analysis of Opportunistic Multi-antenna Relay Selection over Nakagami-m Fading Channels Based RAN for 5G},
        proceedings={1st Workshop on Fog Computing-Based Radio Access Networks for 5G},
        publisher={EAI},
        proceedings_a={F-RAN 5G},
        year={2017},
        month={12},
        keywords={relay selection multiple antennas multiple relays decode and forward cooperative networks},
        doi={10.4108/eai.13-7-2017.2270733}
    }
    
  • Dongyu Wang
    Xiaoxiang Wang
    Feng Wang
    Year: 2017
    Performance Analysis of Opportunistic Multi-antenna Relay Selection over Nakagami-m Fading Channels Based RAN for 5G
    F-RAN 5G
    EAI
    DOI: 10.4108/eai.13-7-2017.2270733
Dongyu Wang1,*, Xiaoxiang Wang1, Feng Wang2
  • 1: Key Laboratory of Universal Wireless Communications, Ministry of Education,Beijing University of Posts and Telecommunications
  • 2: Network Management Center of China Unicom Henan Branch
*Contact email: dy_wang@bupt.edu.cn

Abstract

This letter analyzes the performance of Opportunistic Multi-antenna Relay Selection (OMRS) in Decode-and-Forward (DF) relay networks over independent, non-identical, Nakagami-m fading channels, assuming multiple antennas are available at the relay node. The closed form expressions of outage probability and error performance for binary phase shift keying (BPSK) modulation of OMRS are determined using the moment generating function (MGF) of the total signal-to-noise ratio (SNR) at the destination. Simulations are provided to verify the correctness of theoretical analysis. It can be found that compared with previous single-antenna Opportunistic Relaying (OR) scheme, OMRS brings remarkable performance improvement obtained from maximum ratio combining (MRC) and beamforming, which proves that multiple antennas at the relays could provide more array gain and diversity order.