Paper Info
Title
A New Optimal Relay Selection Strategy for the Coincident Multi-User Access
Abstract
Non-orthogonal multiple access (NOMA) has been recognized as one of the promising multiple access technologies to provide higher spectral efficiency and system capacity to address several challenges in the fifth generation (5G) wireless systems. Telemedicine in the process of being greatly advanced by the high-reliable communication in future 5G wireless systems. This paper proposed a novel optimal relay selection (RS) strategy for the cooperative NOMA to achieve the minimum outage probability, which means that the number of retransmissions in hybrid automatic repeat request (HARQ) is decreased and hence indirectly reduce the communication latency. Small latency ensures the validity of medical data, thereby improving the quality of service (QoS) in medical communications. In addition, compared to another optimal relay selection, namely two-stage strategy, the proposed enhanced max-min RS has a lower computational complexity and lower storage overhead. The proposed enhanced max-min RS strategy can reduce almost 43% storage overhead and 95% latency caused by selection strategy in the cooperative RS-NOMA system used for wireless medical communications.
Year
DOI
Venue
2018
10.1109/ISMICT.2018.8573697
2018 12th International Symposium on Medical Information and Communication Technology (ISMICT)
Keywords
Field
DocType
Cooperative NOMA,medical communications,quality of service (QoS),relay selection
Hybrid automatic repeat request,Wireless,Latency (engineering),Computer network,Quality of service,Spectral efficiency,Engineering,Relay,Computational complexity theory,Multi-user
Conference
ISSN
ISBN
Citations 
2326-828X
978-1-5386-3390-8
0
PageRank 
References 
Authors
0.34
0
7
Name
Order
Citations
PageRank
Jiajia Mei111.04
Jie Zeng27926.46
Bei Liu32612.94
Xin Su428353.83
chang wang53312.55
Qi Liu631.97
Shihai Shao712326.83