Research Article
A Power Allocation Method for Downlink MUSA
@INPROCEEDINGS{10.1007/978-3-030-93398-2_61, author={Haoran Zhang and Shaochuan Wu and Qiuyi Sui and Rundong Zuo}, title={A Power Allocation Method for Downlink MUSA}, proceedings={Wireless and Satellite Systems. 12th EAI International Conference, WiSATS 2021, Virtual Event, China, July 31 -- August 2, 2021, Proceedings}, proceedings_a={WISATS}, year={2022}, month={1}, keywords={MUSA Power allocation BER Sum rate}, doi={10.1007/978-3-030-93398-2_61} }- Haoran Zhang
Shaochuan Wu
Qiuyi Sui
Rundong Zuo
Year: 2022
A Power Allocation Method for Downlink MUSA
WISATS
Springer
DOI: 10.1007/978-3-030-93398-2_61
Abstract
Multi-user shared access (MUSA) is a kind of Non-Orthogonal Multiple Access (NOMA), which is suitable for multi-user transmission and has better channel capacity. This paper analyzes the influencing factors of power allocation on the performance of downlink MUSA from the perspective of sum rate of users and bit error ratio (BER) performance. This paper considers a two-user scenario. A power allocation method based on sum rate of users is proposed and a closed-form expression of the sum rate and power allocation coefficients of users is given in the MUSA downlink scenario. In order to analyze and discuss the impact factors of power allocation on MUSA system performance, extensive simulation results are provided to evaluate the performance of the proposed method under different user weight-ratio scenarios. Through these simulation results, the proposed method is proved to be realistic. Based on this result, a power allocation algorithm for a multi-user scenario is presented in this paper.
