Power save with Offset Listen Interval for IEEE 802.11ah Smart Grid communications

Ren Ping Liu, Gordon J. Sutton, Iain B. Collings

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

32 Citations (Scopus)


Communication is an enabling technology for the efficient control and management of next-generation Smart Grids. Energy conservation of the communication devices is essential for future large scale deployment of Smart Grid communication networks. However, existing power save protocols experience high contention in Smart Grid communication networks that have a large number of nodes and periodic traffic. We design a new energy conservation protocol, Power Save with Offset Listen Interval (PS-OLi), to address such contention problems. PS-OLi avoids message collisions by controlling the station wake up time with a calculated offset. A new analytical model is developed to characterize the power save performance of networks with periodic traffic. Simulation results show that our analytical model accurately predicts the collision probability and packet delay. We use our model to evaluate the energy efficiency of PS-OLi and standard power save protocols. Our results show that PS-OLi extends the lifetime of a Smart Grid communication network by more than 10%. 

Original languageEnglish
Title of host publicationICC 2013
Subtitle of host publicationIEEE International Conference on Communications : proceedings
EditorsDong-In Kim, Peter Mueller
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages5
ISBN (Electronic)9781467331227
Publication statusPublished - 2013
Externally publishedYes
EventIEEE International Conference on Communications - Budapest, Hungary
Duration: 9 Jun 201313 Jun 2013


OtherIEEE International Conference on Communications


Dive into the research topics of 'Power save with Offset Listen Interval for IEEE 802.11ah Smart Grid communications'. Together they form a unique fingerprint.

Cite this