TY - GEN
T1 - On-demand synchronous X-MAC protocol
AU - Kim, Gayoung
AU - Ahn, Jongsuk
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/11/18
Y1 - 2016/11/18
N2 - This paper proposes a hybrid duty-cycle Medium Access Control (MAC) protocol named as On-demand Synchronous X-MAC (OSX-MAC) to improve the performance of the X-MAC protocol. X-MAC, one of typical asynchronous duty-cycle MAC protocols, was designed to save energy in Wireless Sensor Networks (WSNs) by allowing awaken receivers to immediately respond in the middle of the preamble transmission. X-MAC, however, still inefficiently wastes a lot of time before delivering data frames due to two drawbacks; unavailability of the receiver's exact wake-up time and the lack of a mechanism to deal with collision frequented in congested WSNs. To solve these two problems, OSX-MAC is equipped with two techniques, an On-demand Schedule Exchange (OSE) scheme and a modified Binary Exponential Backoff (BEB) algorithm. Without the periodic schedule exchange, OSE lets the receiver explicitly provide its wakeup time whenever it acknowledges the sender. After that, the sender can transmit its preambles near the predicted wakeup time of its receiver. To reduce the degree of collisions, OSX-MAC also adopts the modified BEB algorithm that differs from the legacy BEB in that it does not reset the contention window (CW) to the predetermined initial CW but gradually decreases the CW for new transmissions. Simulation experiments confirmed that OSX-MAC outperformed X-MAC in terms of throughput and energy usage in various WSNs.
AB - This paper proposes a hybrid duty-cycle Medium Access Control (MAC) protocol named as On-demand Synchronous X-MAC (OSX-MAC) to improve the performance of the X-MAC protocol. X-MAC, one of typical asynchronous duty-cycle MAC protocols, was designed to save energy in Wireless Sensor Networks (WSNs) by allowing awaken receivers to immediately respond in the middle of the preamble transmission. X-MAC, however, still inefficiently wastes a lot of time before delivering data frames due to two drawbacks; unavailability of the receiver's exact wake-up time and the lack of a mechanism to deal with collision frequented in congested WSNs. To solve these two problems, OSX-MAC is equipped with two techniques, an On-demand Schedule Exchange (OSE) scheme and a modified Binary Exponential Backoff (BEB) algorithm. Without the periodic schedule exchange, OSE lets the receiver explicitly provide its wakeup time whenever it acknowledges the sender. After that, the sender can transmit its preambles near the predicted wakeup time of its receiver. To reduce the degree of collisions, OSX-MAC also adopts the modified BEB algorithm that differs from the legacy BEB in that it does not reset the contention window (CW) to the predetermined initial CW but gradually decreases the CW for new transmissions. Simulation experiments confirmed that OSX-MAC outperformed X-MAC in terms of throughput and energy usage in various WSNs.
KW - Asynchronous Duty-cycle MAC
KW - Duty-cycle MAC Protocols
KW - Hybrid MAC Protocol
KW - X-MAC Protocol
UR - http://www.scopus.com/inward/record.url?scp=85006852221&partnerID=8YFLogxK
U2 - 10.1109/JCSSE.2016.7748878
DO - 10.1109/JCSSE.2016.7748878
M3 - Conference contribution
AN - SCOPUS:85006852221
T3 - 2016 13th International Joint Conference on Computer Science and Software Engineering, JCSSE 2016
BT - 2016 13th International Joint Conference on Computer Science and Software Engineering, JCSSE 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 13th International Joint Conference on Computer Science and Software Engineering, JCSSE 2016
Y2 - 13 July 2016 through 15 July 2016
ER -