Quality of Service Based NOMA Group D2D Communications

Asim Anwar, Boon-Chong Seet and Xue Jun Li
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Asim Anwar: Department of Electrical and Electronic Engineering, Auckland University of Technology, Auckland 1010, New Zealand
Boon-Chong Seet: Department of Electrical and Electronic Engineering, Auckland University of Technology, Auckland 1010, New Zealand
Xue Jun Li: Department of Electrical and Electronic Engineering, Auckland University of Technology, Auckland 1010, New Zealand

Future Internet, 2017, vol. 9, issue 4, 1-14

Abstract: Non-orthogonal multiple access (NOMA) provides superior spectral efficiency and is considered as a promising multiple access scheme for fifth generation (5G) wireless systems. The spectrum efficiency can be further enhanced by enabling device-to-device (D2D) communications. In this work, we propose quality of service (QoS) based NOMA (Q-NOMA) group D2D communications in which the D2D receivers (DRs) are ordered according to their QoS requirements. We discuss two possible implementations of proposed Q-NOMA group D2D communications based on the two power allocation coefficient policies. In order to capture the key aspects of D2D communications, which are device clustering and spatial separation, we model the locations of D2D transmitters (DTs) by Gauss–Poisson process (GPP). The DRs are then considered to be clustered around DTs. Multiple DTs can exist in proximity of each other. In order to characterize the performance, we derive the Laplace transform of the interference at the probe D2D receiver and obtain a closed-form expression of its outage probability using stochastic geometry tools. The performance of proposed Q-NOMA group D2D communications is then evaluated and benchmarked against conventional paired D2D communications.

Keywords: quality of service; device-to-device communication; non-orthogonal multiple access; stochastic geometry (search for similar items in EconPapers)
JEL-codes: O3 (search for similar items in EconPapers)
Date: 2017
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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