首页> 外文会议>IEEE International Conference on Communication Software and Networks >Adaptive power allocation scheme for land mobile satellite cooperative communication systems under a SNR threshold constraint
【24h】

Adaptive power allocation scheme for land mobile satellite cooperative communication systems under a SNR threshold constraint

机译:SNR阈值约束下的陆地移动卫星协作通信系统自适应功率分配方案

获取原文

摘要

Power resource is one of the extremely limited resources of user terminals. This paper proposes an adaptive power allocation scheme aiming at minimizing total transmit power consumption for land mobile satellite (LMS) cooperative communication systems through amplify-and-forward (AF) protocol. In LMS uplink, the cooperative opportunity, which is defined as the selection between direct transmission and the cooperative transmission, is introduced into this scheme. With the variation values of the fading degree, the transmit power of user terminals can be allocated adaptively subject to a signal to noise ratio (SNR) threshold constraint. Numerical results are given in order to illustrate a significant advantage of total transmit power consumption based on adaptive power allocation scheme over conventional cooperative power allocation scheme and direct transmission.
机译:功率资源是用户终端的极其有限的资源之一。本文提出了一种自适应功率分配方案,旨在通过放大转发(AF)协议将陆地移动卫星(LMS)协作通信系统的总发射功率消耗降至最低。在LMS上行链路中,将定义为直接传输和协作传输之间的选择的协作机会引入到该方案中。利用衰落度的变化值,可以适应于信噪比(SNR)阈值约束而自适应地分配用户终端的发送功率。给出数值结果以说明基于自适应功率分配方案的总发射功率消耗相对于常规协作功率分配方案和直接传输的显着优势。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号