TY - GEN
T1 - Channel-adaptive MAC frame length in wireless body area networks
AU - Mohammadi, Mohammad Sadegh
AU - Zhang, Qi
AU - Dutkiewicz, Eryk
PY - 2014
Y1 - 2014
N2 - The nature of wireless channel in a wireless body area network is highly dynamic and hence, any static design is trivially sub-optimal. In this paper we propose a cross-layer channel-adaptive framework to adjust the MAC frame body length of the data packets. We propose two different approaches to incorporate the impact of the time-varying channel gain in the transmission policy aiming to improve the overall energy efficiency of the system. The first approach is based on autoregressive channel prediction and the second scheme is a novel procedure inspired by the well-known slow-start mechanism. Explicitly, in our first scheme the channel gain is predicted and the optimal frame length is selected. In the second method, MAC frame length is sequentially increased after receiving the acknowledgment message or decreased if no acknowledgment is received. Our simulation results show that the proposed schemes can significantly improve energy efficiency in comparison with the case with fixed frame length.
AB - The nature of wireless channel in a wireless body area network is highly dynamic and hence, any static design is trivially sub-optimal. In this paper we propose a cross-layer channel-adaptive framework to adjust the MAC frame body length of the data packets. We propose two different approaches to incorporate the impact of the time-varying channel gain in the transmission policy aiming to improve the overall energy efficiency of the system. The first approach is based on autoregressive channel prediction and the second scheme is a novel procedure inspired by the well-known slow-start mechanism. Explicitly, in our first scheme the channel gain is predicted and the optimal frame length is selected. In the second method, MAC frame length is sequentially increased after receiving the acknowledgment message or decreased if no acknowledgment is received. Our simulation results show that the proposed schemes can significantly improve energy efficiency in comparison with the case with fixed frame length.
UR - http://www.scopus.com/inward/record.url?scp=84940757455&partnerID=8YFLogxK
U2 - 10.1109/WPMC.2014.7014885
DO - 10.1109/WPMC.2014.7014885
M3 - Conference proceeding contribution
VL - 2015-January
T3 - Wireless Personal Multimedia Communications Symposia Proceedings
SP - 584
EP - 588
BT - 2014 International Symposium on Wireless Personal Multimedia Communications, WPMC 2014
PB - Institute of Electrical and Electronics Engineers (IEEE)
CY - Piscataway, NJ
T2 - 2014 International Symposium on Wireless Personal Multimedia Communications, WPMC 2014
Y2 - 7 September 2014 through 10 September 2014
ER -