Optimal Scheme of Resource Allocation for Ultra-reliable and Low-latency in Machine Type Communications Based on Non-orthogonal Multiple Access with Short Block Transmission

Xianzhong XIE; Jia LI; Qian HUANG; Jie CHEN

doi:10.11999/JEIT190128

Volume 41 Issue 11

Nov. 2019

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Article Navigation > Journal of Electronics & Information Technology > 2019 > 41(11): 2549-2556

Xianzhong XIE, Jia LI, Qian HUANG, Jie CHEN. Optimal Scheme of Resource Allocation for Ultra-reliable and Low-latency in Machine Type Communications Based on Non-orthogonal Multiple Access with Short Block Transmission[J]. Journal of Electronics & Information Technology, 2019, 41(11): 2549-2556. doi: 10.11999/JEIT190128

Citation:

Xianzhong XIE, Jia LI, Qian HUANG, Jie CHEN. Optimal Scheme of Resource Allocation for Ultra-reliable and Low-latency in Machine Type Communications Based on Non-orthogonal Multiple Access with Short Block Transmission[J]. Journal of Electronics & Information Technology, 2019, 41(11): 2549-2556. doi: 10.11999/JEIT190128

Citation:

Xianzhong XIE, Jia LI, Qian HUANG, Jie CHEN. Optimal Scheme of Resource Allocation for Ultra-reliable and Low-latency in Machine Type Communications Based on Non-orthogonal Multiple Access with Short Block Transmission[J]. Journal of Electronics & Information Technology, 2019, 41(11): 2549-2556. doi: 10.11999/JEIT190128

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Optimal Scheme of Resource Allocation for Ultra-reliable and Low-latency in Machine Type Communications Based on Non-orthogonal Multiple Access with Short Block Transmission

doi: 10.11999/JEIT190128

School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications Chongqing key Laboratory of Computer Networks and Communications, Chongqing 400065, China

Funds: The National Nature Science Foundation of China (61601070), The Key Science and Technology Research Program of Chongqing Municipal Education Commission (KJZD-K201800603), The Foundation and Frontier Research Program of Chongqing (cstc2018jcyjAX0432), The Graduate Scientific Research Innovation Program of Chongqing (CYS17223)

Received Date: 2019-03-05
Rev Recd Date: 2019-06-26

Available Online: 2019-07-04

Publish Date: 2019-11-01

Abstract

Abstract

For the service characteristics and Quality of Service (QoS) requirements of Machine Type Communications (MTC), short-packet/short-coded block transmission in MTC based on Non-Orthogonal Multiple Access (NOMA) is considered in this paper, and the resource optimization problem of the Ultra-Reliable and Low-Latency (URLL) in MTC based on NOMA is discussed. Currently, uplink transmission is a bottleneck of MTC based on NOMA. Firstly, considering the performance requirements supporting NOMA and high reliability and low latency in wireless cellular networks, a system model for uplink wireless resource optimization is established. Then, the uplink transmission delay is analyzed and the link reliability function based on distance is derived. Further, with the constraints of delay, reliability and bandwidth, a wireless resource allocation algorithm for maximizing the sum rates of central users is proposed, and also the convergence proof and complexity analysis of the algorithm are given. Finally, the simulation results show the performance advantages of the proposed optimal scheme.

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References(17)

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