Cooperative transmissions in wireless sensor networks with imperfect synchronization

Author

Li, Xiaohua Edward ; Chen, Mo ; Liu, Wenyu

Author_Institution

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

Volume

1

fYear

2004

fDate

7-10 Nov. 2004

Firstpage

1281

Abstract

STBC-encoded cooperative transmission is studied in a typical wireless sensor network communication protocol LEACH (low-energy adaptive clustering hierarchy). The effect of imperfect synchronization among cooperative sensors is studied and a new STBC encoding scheme is proposed when asynchronism becomes significant Cooperation overhead and energy efficiency are analyzed. The analysis and simulation results demonstrate that cooperative transmission is promising in wireless sensor networks in spite of the increased cost of synchronization and circuitry energy consumption.

Keywords

block codes; protocols; space-time codes; synchronisation; wireless sensor networks; LEACH; STBC; asynchronism; circuitry energy consumption; communication protocol; encoded cooperative transmission; energy efficiency; imperfect synchronization; low-energy adaptive clustering hierarchy; space-time block code; wireless sensor network; Antenna arrays; Circuits; Energy consumption; Energy efficiency; Frequency synchronization; Intelligent networks; Scheduling; Transmitters; Transmitting antennas; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2004. Conference Record of the Thirty-Eighth Asilomar Conference on

Print_ISBN

0-7803-8622-1

Type

conf

DOI

10.1109/ACSSC.2004.1399348

Filename

1399348