Application of STBC-encoded cooperative transmissions in wireless sensor networks

Author

Xiaohua Li ; Mo Chen ; Wenyu Liu

Author_Institution

Dept. of Electr. & Comput. Eng., State Univ. of New York, Binghamton, NY, USA

Volume

12

Issue

2

fYear

2005

Firstpage

134

Lastpage

137

Abstract

The efficiency of space-time block code-encoded (STBC) cooperative transmission is studied within low-energy adaptive clustering hierarchy (LEACH), which is a typical networking/communication protocol for wireless sensor networks. Cooperation protocol with low overhead is proposed, and synchronization requirements among cooperating sensors are discussed. Energy efficiency is analyzed as a tradeoff between the reduced transmission energy consumption and the increased electronic and overhead energy consumption. Simulations show that with proper design, cooperative transmission can enhance energy efficiency and prolong sensor network lifetime.

Keywords

block codes; diversity reception; space-time codes; synchronisation; wireless sensor networks; LEACH; STBC; cooperative diversity; energy consumption; low-energy adaptive clustering hierarchy; space-time block code-encoding; synchronization; wireless sensor network; Energy consumption; Energy efficiency; Frequency synchronization; Intelligent networks; Linear antenna arrays; Scheduling; Time division multiple access; Timing; Wireless application protocol; Wireless sensor networks; Cooperative diversity; STBC; sensor networks; synchronization;

fLanguage

English

Journal_Title

Signal Processing Letters, IEEE

Publisher

ieee

ISSN

1070-9908

Type

jour

DOI

10.1109/LSP.2004.840870

Filename

1381469