@inproceedings{643ca1b5f179475597afb905d3da84cb,
title = "Prediction-based dynamic relay transmission scheme for wireless body area networks",
abstract = "To support long-term pervasive healthcare services, communications in Wireless Body Area Networks (WBANs) need to be both reliable and energy-efficient. As a cooperative transmission method, relay transmission scheme works effectively in resisting shadowing effect and improving reliability in WBANs. However, the extra energy consumption introduced by relay transmission is very high, which can shorten the lifetime of the whole network. In this paper, temporal and spatial correlation models for on-body channels are first presented to better characterize the slow fading effect of on-body channels. Then a prediction-based dynamic relay transmission (PDRT) scheme that makes full use of the correlation characteristics of on-body channels is proposed. In the PDRT scheme, {"}when to relay{"} and {"}who to relay{"} are decided in an optimal way based on the last known channel states. Moreover, neither extra signaling procedure nor dedicated channel sensing period is needed. Simulation results show that the PDRT scheme achieves significant performance improvement in energy efficiency, as well as ensuring the transmission reliability.",
keywords = "Body area channels, Energy efficiency, Outage probability, Relay transmission, Temporal and spatial correlation models, Wireless body area networks",
author = "Hui Feng and Bin Liu and Zhisheng Yan and Chi Zhang and Chen, \{Chang Wen\}",
year = "2013",
doi = "10.1109/PIMRC.2013.6666574",
language = "English",
isbn = "9781467362351",
series = "IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "2539--2544",
booktitle = "2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013",
address = "United States",
note = "24th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013 ; Conference date: 08-09-2013 Through 11-09-2013",
}