Open AccessEnergy efficient transmission techniques for wireless sensor networks
Author(s) -
Haleem Mohamed A.
Publication year - 2014
Publication title -
iet science, measurement and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.418
H-Index - 49
eISSN - 1751-8830
pISSN - 1751-8822
DOI - 10.1049/iet-smt.2013.0281
Subject(s) - computer science , transmission (telecommunications) , wireless sensor network , electronic engineering , interference (communication) , bit error rate , wireless , efficient energy use , signal to noise ratio (imaging) , computer network , telecommunications , channel (broadcasting) , electrical engineering , engineering
Power against rate performance of a class of transmission techniques is studied in this paper. This study arises in the context of a wireless sensor network in which multiple nodes equipped with single or multiple antennas cooperatively send simultaneous and distinct signals to multiple receiving nodes, each equipped with a single receiving antenna. The criterion in deriving the techniques is to eliminate or minimise the mutual interference so as to maximise received signal‐to‐interference plus noise ratio. It is shown for low bit rates that time‐shared transmission can achieve the performance of the optimal power shared technique operating in spatially uncoupled (ideal) channels. As the bit rate increases, time‐shared transmission becomes suboptimal. In this study, best linear optimisation, dirty paper coding and zero forcing are promising techniques.