%0 Journal Article
%A CHEN Jie
%A HUANG Qian
%A LI Jia
%A XIE Xian-zhong
%T Optimal Scheme of Uplink Resource Allocation for Ultra-Reliable and Low-Latency in Massive Machine Type Communications with Power Control
%D 2018
%R 10.13190/j.jbupt.2018-035
%J Journal of Beijing University of Posts and Telecommunications
%P 45-51
%V 41
%N 6
%X An optimal scheme of uplink resource allocation for ultra-reliable and low-latency (URLL) in massive machine type communications (mMTC) with power control is proposed. Considering time division duplexing (TDD) cellular networks, the reverse power control scheme of uplink transmission by using the distance measurement capability of multi-antenna TDD base station is designed and the link-based reliability function based on distance is derived. Further, the optimization model of uplink radio resources is built. Then the characteristic of the link reliability function is analyzed and an optimal transmission error probability algorithm based on golden section is proposed. Furthermore, an algorithm to minimize the total bandwidth required by the system is given. Multiple sub-channels may be assigned to each user, and the user selects the sub-channel by judging whether the channel gain exceeds the threshold. Finally, simulation experiments show the improvement of latency and reliability, as well as the performance advantages of total bandwidth, power consumption and so on.
%U https://journal.bupt.edu.cn/EN/10.13190/j.jbupt.2018-035