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Quality, Reliability, Security and Robustness in Heterogeneous Systems. 15th EAI International Conference, QShine 2019, Shenzhen, China, November 22–23, 2019, Proceedings

Research Article

Hybrid NOMA/OMA with Buffer-Aided Relaying for Cooperative Uplink System

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  • @INPROCEEDINGS{10.1007/978-3-030-38819-5_11,
        author={Jianping Quan and Peng Xu and Yunwu Wang and Zheng Yang},
        title={Hybrid NOMA/OMA with Buffer-Aided Relaying for Cooperative Uplink System},
        proceedings={Quality, Reliability, Security and Robustness in Heterogeneous Systems. 15th EAI International Conference, QShine 2019, Shenzhen, China, November 22--23, 2019, Proceedings},
        proceedings_a={QSHINE},
        year={2020},
        month={1},
        keywords={Hybrid NOMA/OMA Buffer-aided relaying Cooperative uplink system},
        doi={10.1007/978-3-030-38819-5_11}
    }
    
  • Jianping Quan
    Peng Xu
    Yunwu Wang
    Zheng Yang
    Year: 2020
    Hybrid NOMA/OMA with Buffer-Aided Relaying for Cooperative Uplink System
    QSHINE
    Springer
    DOI: 10.1007/978-3-030-38819-5_11
Jianping Quan1,*, Peng Xu1,*, Yunwu Wang1,*, Zheng Yang2,*
  • 1: Chongqing University of Posts and Telecommunications
  • 2: Fujian Normal University
*Contact email: quanjianp@163.com, xupeng@cqupt.edu.cn, wangyunw@163.com, zyfjnu@163.com

Abstract

In this paper, we consider a cooperative uplink network consisting of two users, a half-duplex decode-and-forward (DF) relay and a base station (BS). In the relaying network, the two users transmit packets to the buffer-aided relay using non-orthogonal multiple access (NOMA) or orthogonal multiple access (OMA) technology. We proposed a hybrid NOMA/OMA based mode selection (MS) scheme, which adaptively switches between the NOMA and OMA transmission modes according to the instantaneous strength of wireless links and the buffer state. Then, the state transmission matrix probabilities of the corresponding Markov chain is analyzed, and the performance in terms of sum throughput, outage probability, average packet delay and diversity gain are evaluated with closed form expressions. Numerical results are provided to demonstrate that hybrid NOMA/OMA achieves significant performance gains compared to conventional NOMA and OMA in most scenarios.

Keywords
Hybrid NOMA/OMA Buffer-aided relaying Cooperative uplink system
Published
2020-01-14
Appears in
SpringerLink
http://dx.doi.org/10.1007/978-3-030-38819-5_11
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