TY - GEN
T1 - PSR
T2 - 32nd IEEE Conference on Computer Communications, IEEE INFOCOM 2013
AU - Huang, Hao
AU - Yun, Jihoon
AU - Zhong, Ziguo
AU - Kim, Songmin
AU - He, Tian
PY - 2013
Y1 - 2013
N2 - Low-duty-cycle radio operations have been proposed for wireless networks facing severe energy constraints. Despite energy savings, duty-cycling the radio creates transient-available wireless links, making communication rendezvous a challenging task under the practical issue of clock drift. To overcome limitations of prior work, this paper presents PSR, a practical design for synchronous rendezvous in low-duty-cycle wireless networks. The key idea behind PSR is to extract timing information naturally embedded in the pattern of radio duty-cycling, so that normal traffic in the network can be utilized as a 'free' input for drift detection, which helps reduce (or even eliminate) the overhead of traditional time-stamp exchange with dedicated packets or bits. To prevent an overuse of such free information, leading to energy waste, an energy-driven adaptive mechanism is developed for clock calibration to balance between energy efficiency and rendezvous accuracy. PSR is evaluated with both test-bed experiments and extensive simulations, by augmenting and comparing with four different MAC protocols. Results show that PSR is practical and effective under different levels of traffic load, and can be fused with those MAC protocols to improve their energy efficiency without major change of the original designs.
AB - Low-duty-cycle radio operations have been proposed for wireless networks facing severe energy constraints. Despite energy savings, duty-cycling the radio creates transient-available wireless links, making communication rendezvous a challenging task under the practical issue of clock drift. To overcome limitations of prior work, this paper presents PSR, a practical design for synchronous rendezvous in low-duty-cycle wireless networks. The key idea behind PSR is to extract timing information naturally embedded in the pattern of radio duty-cycling, so that normal traffic in the network can be utilized as a 'free' input for drift detection, which helps reduce (or even eliminate) the overhead of traditional time-stamp exchange with dedicated packets or bits. To prevent an overuse of such free information, leading to energy waste, an energy-driven adaptive mechanism is developed for clock calibration to balance between energy efficiency and rendezvous accuracy. PSR is evaluated with both test-bed experiments and extensive simulations, by augmenting and comparing with four different MAC protocols. Results show that PSR is practical and effective under different levels of traffic load, and can be fused with those MAC protocols to improve their energy efficiency without major change of the original designs.
UR - http://www.scopus.com/inward/record.url?scp=84883083273&partnerID=8YFLogxK
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U2 - 10.1109/INFCOM.2013.6567074
DO - 10.1109/INFCOM.2013.6567074
M3 - Conference contribution
AN - SCOPUS:84883083273
SN - 9781467359467
T3 - Proceedings - IEEE INFOCOM
SP - 2661
EP - 2669
BT - 2013 Proceedings IEEE INFOCOM 2013
Y2 - 14 April 2013 through 19 April 2013
ER -