Power Allocation in Land Mobile Satellite Systems: An Energy-Efficient Perspective

被引：23

作者：

An, Kang ^{[1
]}

Liang, Tao ^{[1
]}

Yan, Xiaojuan ^{[2
,3
]}

Li, Yusheng ^{[1
]}

Qiao, Xiaoqiang ^{[1
]}

机构：

[1] Natl Univ Def Technol, Nanjing 210007, Jiangsu, Peoples R China

[2] Guilin Univ Elect Technol, Sch Informat & Commun, Guilin 541004, Peoples R China

[3] Qinzhou Univ, Engn Training Ctr, Qinzhou 535011, Peoples R China

来源：

IEEE COMMUNICATIONS LETTERS | 2018年 / 22卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Land mobile satellite; energy efficiency; power allocation; mobile satellite service; TERRESTRIAL NETWORKS; CHANNELS;

D O I：

10.1109/LCOMM.2018.2831707

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

Energy-efficient resource allocation schemes have gained considerable attention in satellite communications since the energy consumption powered by solar panels or batteries strongly affect the on-board payload and operation lifetime. This letter proposes an energy-efficient power allocation scheme in a downlink land mobile satellite (LMS) system, which aims at maximizing the ratio of average rate over the total consumed power. With the aid of fractional programming, the energy-efficient optimal power allocation coefficient is first obtained for the LMS system by considering the practical propagation environment and maximum transmit power constraint. Then, analytical result for the optimal mean energy efficiency (EE) of the considered system is derived, which provides an effective approach to evaluate the satellite beam angle, terminal's elevation angle, and constant circuit power consumption on the EE of the LMS system.

引用

页码：1374 / 1377

页数：4

共 19 条

[1] A new simple model for land mobile satellite channels: First- and second-order statistics [J].