Paper Info
Title
Full-duplex Multi-Antenna Relay Assisted Cooperative Non-Orthogonal Multiple Access.
Abstract
We consider a cooperative non-orthogonal multiple access (NOMA) network in which a full-duplex (FD) multi-antenna relay assists transmission from a base station (BS) to a set of far users with poor channel conditions, while at the same time the BS transmits to a set of near users with strong channel conditions. We assume imperfect self-interference (SI) cancellation at the FD relay and imperfect inter-user interference cancellation at the near users. In order to cancel the SI at the relay a zero-forcing based beamforming scheme is used and the corresponding outage probability analysis of two user selection strategies, namely random near user and random far user (RNRF), and nearest near user and nearest far user (NNNF), are derived. Our finding suggests that significant performance improvement can be achieved by using the FD multi-antenna relay compared to the counterpart system with a half-duplex relay. The achieved performance gain depends on network parameters such as the user density, user zones, path loss and the strength of the inter-user interference in case of near users. We also show that the NNNF strategy exhibits a superior outage performance compared to the RNRF strategy, especially in the case of near user.
Year
DOI
Venue
2017
10.1109/glocom.2017.8254918
IEEE Global Communications Conference
DocType
Volume
ISSN
Conference
abs/1708.03919
2334-0983
Citations 
PageRank 
References 
1
0.34
11
Authors
4
Name
Order
Citations
PageRank
Zahra Mobini1669.07
MohammadAli Mohammadi217417.27
Himal A. Suraweera32639117.31
Zhiguo Ding47031399.47