971 search results - page 86 / 195 » Broadcasting energy efficiency limits in wireless networks |
CISS
2007
IEEE
15 years 1 months ago
2007
IEEE
Distributed space-time-block-coding (Dis-STBC) achieves diversity through cooperative transmission among geographically dispersed nodes. In this paper, we present a powerefficient...
MOBIHOC
2009
ACM
15 years 2 months ago
2009
ACM
We address the problem of estimating the remaining energy of a node battery in wireless sensor networks. To solve this issue, we provide an on-line battery model that requires lim...
PERCOM
2006
ACM
15 years 9 months ago
2006
ACM
Recent localization research has focused on improving the accuracy of pinpointing the physical location of a target. We think that the energy efficiency and the quality of the loc...
INFOCOM
2002
IEEE
15 years 2 months ago
2002
IEEE
— A key challenge in ad-hoc, data-gathering wireless sensor networks is achieving a lifetime of several years using nodes that carry merely hundreds of joules of stored energy. I...
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CORR
2008
Springer
14 years 10 months ago
2008
Springer
Abstract--Cooperative transmission is an emerging communication technique that takes advantage of the broadcast nature of wireless channels. However, due to low spectral efficiency...