TY - GEN
T1 - An energy efficient pre-schedule scheme for hybrid CSMA/TDMA MAC in wireless sensor networks
AU - Wang, Wei
AU - Wang, Honggang
AU - Peng, Dongming
AU - Sharif, Hamid
PY - 2006
Y1 - 2006
N2 - In this paper, we propose a novel local framing preschedule scheme to improve energy saving in CSMA/TDMA hybrid MAC layer of wireless sensor network. This MAC combines CSMA and TDMA functionalities together, while obviates their shortcomings. Usually, in a hybrid CSMA/TDMA MAC such as ZMAC, all the receivers have to perform low power listening all the time to wait for in-coming data. Although low power listening scheme can achieve energy saving by reducing idle listening to some extent, it is much more beneficial with a scheme to smartly turn off the radio when the receiver does not receive any data. By introducing preschedule slot, all the nodes will know the neighbors' behavior in the upcoming slots. After the time slot assignment, senders advertise their traffic schedules to let neighbor nodes know which one will receive data, and what the amount of the data is. Since each node knows exactly the schedule of other neighbor nodes, it can sleep smartly when it has received all the data and does not have other task during this round. Our simulations have shown that such scheme of local framing pre-schedule has achieved much higher energy efficiency than other proposed hybrid CSMA/TDMA MACs such as Z-MAC.
AB - In this paper, we propose a novel local framing preschedule scheme to improve energy saving in CSMA/TDMA hybrid MAC layer of wireless sensor network. This MAC combines CSMA and TDMA functionalities together, while obviates their shortcomings. Usually, in a hybrid CSMA/TDMA MAC such as ZMAC, all the receivers have to perform low power listening all the time to wait for in-coming data. Although low power listening scheme can achieve energy saving by reducing idle listening to some extent, it is much more beneficial with a scheme to smartly turn off the radio when the receiver does not receive any data. By introducing preschedule slot, all the nodes will know the neighbors' behavior in the upcoming slots. After the time slot assignment, senders advertise their traffic schedules to let neighbor nodes know which one will receive data, and what the amount of the data is. Since each node knows exactly the schedule of other neighbor nodes, it can sleep smartly when it has received all the data and does not have other task during this round. Our simulations have shown that such scheme of local framing pre-schedule has achieved much higher energy efficiency than other proposed hybrid CSMA/TDMA MACs such as Z-MAC.
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U2 - 10.1109/ICCS.2006.301527
DO - 10.1109/ICCS.2006.301527
M3 - Conference contribution
AN - SCOPUS:46949099809
SN - 1424404118
SN - 9781424404117
T3 - 2006 IEEE Singapore International Conference on Communication Systems, ICCS 2006
BT - 2006 IEEE Singapore International Conference on Communication Systems, ICCS 2006
T2 - 10th IEEE Singapore International Conference on Communications Systems, ICCS 2006
Y2 - 30 October 2006 through 1 November 2006
ER -