An ACM Method Based on Partial Channel Information for Mobile Satellite Link

WEI Liang; SONG Gao-jun; TIAN Liang

doi:10.3969/j.issn.0372-2112.2018.09.003

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An ACM Method Based on Partial Channel Information for Mobile Satellite Link

更新时间：2025-07-16

- An ACM Method Based on Partial Channel Information for Mobile Satellite Link
- Acta Electronica Sinica Vol. 46, Issue 9, Pages: 2063-2067(2018)
- 作者机构：
  
  南昌航空大学信息工程学院,江西,南昌,330063
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China (No.61362013);Graduate Innovation Foundation of Jiangxi Province (No.YC2016-S347)
- DOI：10.3969/j.issn.0372-2112.2018.09.003
  CLC： TN927
- Published Online：25 September 2018，
  
  Published：2018
- 稿件说明：
移动端阅览
WEI Liang, SONG Gao-jun, TIAN Liang. An ACM Method Based on Partial Channel Information for Mobile Satellite Link[J]. Acta Electronica Sinica, 2018, 46(9): 2063-2067.
DOI：

WEI Liang, SONG Gao-jun, TIAN Liang. An ACM Method Based on Partial Channel Information for Mobile Satellite Link[J]. Acta Electronica Sinica, 2018, 46(9): 2063-2067. DOI： 10.3969/j.issn.0372-2112.2018.09.003.

摘要

在卫星移动通信环境下，由于信道时变特性以及巨大的往返传输延迟，极大地限制了卫星自适应编码调制（adaptive coding and modulation）技术的应用.为了解决这个问题，根据卫星移动通信上下行链路的视线信道分量满足近似互易性的特点，本文提出了一种基于部分信道信息的自适应调制编码方法.在满足平均发射功率和平均比特错误率的约束条件下，导出了最优的自适应编码调制策略和功率分配方法.提出的方法克服了现有自适应方法的局限性，同时，通过频谱效率性能的仿真验证了提出方法的有效性.

Abstract

Due to the time-varying of the channel and the huge round-trip delay

the application of adaptive coding and modulation (ACM) technique is greatly limited in the mobile satellite environment. In order to solve this problem

an ACM method using partial channel information is proposed based on the characteristics of the line-of-sight component between uplink and downlink

which satisfy the approximate reciprocity in mobile satellite communication. This paper presents an optimized ACM strategy and power allocation method with the constraint of the average transmit power and the average bit error rate

which overcome the limitations of existing adaptation. At the same time

the simulation results also show the effectiveness of the proposed method.

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