Summary
Asia-Pacific Conference on Communications
2008
Session Number:15-PM1-D
Session:
Number:1569125493
Power Saving Effect of Sensor Collaborative Beamforming for Wireless Ubiquitous Network Systems
Sousuke Tokunaga, Yoshihisa Kawakami, Kenichi Hashimoto, Shigeru Tomisato, Satoshi Denno, Masaharu Hata,
pp.-
Publication Date:2008/10/14
Online ISSN:2188-5079
DOI:10.34385/proc.27.1569125493
Summary:
This paper evaluates transmission performance and power-saving effect of the collaborative beamforming for wireless ubiquitous network systems. The evaluation of power-saving includes the power consumption for signal transmission to collaborative sensors in beamforming. The simulation result shows that the total power consumption of the beamforming with 3 collaborative sensors can be decreased to about 1/2 compared with that of a transmitting sensor without the beamforming in free-space propagation channels. In typical mobile propagation channels with shadowing, the total power consumption of the beamforming by using 3 collaborative sensors can be reduced to 1/7 of that without the beamforming. The above results confirm that the collaborative beamforming can be achieve lower power consumption, and greatly contributes to realize low-power transmission in wireless sensor network systems.