Paper Info
Title
Resource Allocation in Multi-User NOMA Wireless Systems
Abstract
Non-orthogonal multiple access (NOMA) has been considered as a key candidate technology for 5G wireless systems due to its superior spectral efficiency and system capacity. With the ever-development of wireless body sensor networks (WBSNs) and wireless communications, supporting real-time communications in the telemedicine communication becomes a very important challenge. In this article, our goal is to maximize the overall system throughput by optimizing sub-band allocation and power allocation, thereby improving real-time performance in telemedicine communications. Assuming that the base station could obtain perfect channel state information (CSI), we propose a suboptimal sub-band allocation algorithm with low complexity. In the power allocation scheme, the closed-form expressions of power allocation factors for multiplexed users on each subband are obtained based on the Karush-Kuhn-Tucker (KKT) optimality conditions. Simulation results demonstrate that the proposed resource allocation scheme is closest to the ideal subband allocation based on exhaustive search and is superior to other schemes.
Year
DOI
Venue
2018
10.1109/ISMICT.2018.8573724
2018 12th International Symposium on Medical Information and Communication Technology (ISMICT)
Keywords
Field
DocType
Non-orthogonal multiple access (NOMA),telemedicine communication,maximum sum rate,sub-band allocation,power allocation
Base station,Wireless,Computer network,Resource allocation,Spectral efficiency,Engineering,Throughput,Wireless sensor network,Channel state information,Telecommunications link
Conference
ISSN
ISBN
Citations 
2326-828X
978-1-5386-3390-8
0
PageRank 
References 
Authors
0.34
0
7
Name
Order
Citations
PageRank
Mingyao Peng111.71
Jie Zeng27926.46
Bei Liu32612.94
Jiajia Mei411.04
Xin Su528353.83
Xibin Xu634138.95
Limin Xiao723147.05