Optimal Power Allocation for Space Shift Keying Modulation in a Distributed Antenna System

Author

Enzhi Zhou ; Li Hao

Author_Institution

Key Lab. of Inf. Coding & Transm., Southwest Jiaotong Univ., Chengdu, China

Volume

17

Issue

9

fYear

2013

fDate

41518

Firstpage

1734

Lastpage

1737

Abstract

In a distributed antenna system (DAS), remote antenna units (RAU) cooperate to form a distributed SSK transmitter (DAS-SSK), where each RAU is equipped with multiple antennas but a single radio-frequency (RF) chain. The fading channel of each RAU distributes with a different variance due to the different propagation distance and shadowing fading. In this letter, a tight upper bound on the symbol error rate (SER) of the DAS-SSK system is derived based on the union bound analysis. A convex-optimization-based optimal power allocation scheme among RAUs is proposed, which shows a significant performance improvement.

Keywords

antenna arrays; convex programming; error statistics; fading channels; modulation; resource allocation; DAS-SSK; SER; convex optimization; distributed SSK transmitter; distributed antenna system; fading channel; optimal power allocation; propagation distance; remote antenna units; shadowing fading; space shift keying modulation; symbol error rate; union bound analysis; Decision support systems; Fading; Modulation; Resource management; Signal to noise ratio; Transmitting antennas; Space shift keying modulation; convex optimization; distributed antenna system; power allocation;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2013.080213.130805

Filename

6584538