QoS-Aware Precoding in Downlink Massive MIMO LEO Satellite Communications

被引:4
作者
Huang, Yan [1 ,2 ]
You, Li [1 ,2 ]
Tsinos, Christos G. [3 ,4 ]
Wang, Wenjin [1 ,2 ]
Gao, Xiqi [1 ,2 ]
机构
[1] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Peoples R China
[2] Purple Mt Labs, Nanjing 211100, Peoples R China
[3] Natl & Kapodistrian Univ Athens, Core Dept, Euripus Campus, Euboea 34400, Greece
[4] Univ Luxembourg, Interdisciplinary Ctr Secur Reliabil & Trust SnT, L-2721 Luxembourg, Luxembourg
关键词
Massive MIMO; LEO SATCOM; QoS; energy efficiency; TRANSMISSION;
D O I
10.1109/LCOMM.2023.3263462
中图分类号
TN [电子技术、通信技术];
学科分类号
0809 ;
摘要
Satellite communications (SATCOM) are essential parts of future wireless networks and are moving towards standardization in 6G. Low Earth Orbit (LEO) SATCOM show significant performance gain in global wireless access services, due to their minor path loss and short propagation delay, compared with other SATCOM counterparts. A quality of service (QoS)-aware precoding design is presented in this work to enhance the performance of massive multiple-input multiple-output (MIMO) LEO SATCOM. In particular, we set up a multi-objective optimization problem to balance the system energy efficiency (EE) and the percentage of users achieving their QoS requirements. An efficient algorithm is developed for obtaining the precoding vectors. Numerical results show that the proposed algorithm leads to a larger percentage of users achieving their QoS requirements and brings improvements in EE performance, compared with conventional approaches.
引用
收藏
页码:1560 / 1564
页数:5
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