標題: | Resource Allocation and Minimum Rate for Precoded Non-orthogonal Multiple Access |
作者: | Chen, Chih-Chiang Tsai, Shang-Ho (Lawrence) Lin, Yuan-Pei Lin, Chia-Hua 電機工程學系 Department of Electrical and Computer Engineering |
公開日期: | 1-一月-2017 |
摘要: | In this paper, we propose user clustering and power allocation algorithms for a precoded NOMA system. The user clustering for the strong and the weak users, and corresponding power allocation can be optimized disjointedly when SNR is sufficiently high, and this leads to a great reduction in computational complexity. Moreover this proposed power allocation algorithm can maximize sum achievable rate subject to a minimum target rate. Furthermore, from the analytical results, we suggest a reasonable minimum target rate for the weak user so that this rate can always be achieved, i.e, with outage probability 1. Using the suggested target rate, the NOMA system can avoid failing in achieving this target rate even if all power is allocated to the weak user. Simulation results corroborate theoretical results. |
URI: | http://hdl.handle.net/11536/146967 |
ISSN: | 2309-9402 |
期刊: | 2017 ASIA-PACIFIC SIGNAL AND INFORMATION PROCESSING ASSOCIATION ANNUAL SUMMIT AND CONFERENCE (APSIPA ASC 2017) |
起始頁: | 813 |
結束頁: | 817 |
顯示於類別: | 會議論文 |