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AuthorElias, Yaacoub
AuthorAbu-Dayya, Adnan
Available date2024-09-29T09:39:43Z
Publication Date2014
Publication NameComputer Networks
ResourceScopus
ISSN13891286
URIhttp://dx.doi.org/10.1016/j.bjp.2013.10.009
URIhttp://hdl.handle.net/10576/59418
AbstractReal-time transmission of smart meter measurement data is investigated. A contention based approach exploiting the unused cellular spectrum, e.g. of 4G Long Term Evolution (LTE), is proposed. The proposed approach uses subsets of LTE resource blocks (RBs) as allocation units. It is based on channel aware reservation slotted Aloha over orthogonal frequency division multiple access (OFDMA) using time/frequency slots, which leads to a reduction of collision probability, prevents collisions in the transmission phase, and allows detecting these collisions at the reservation phase. The proposed method relies on an access point (AP) that indicates the "available" OFDMA subcarriers to the contending devices after receiving this information through coordination with the cellular base station (BS): The BS informs the AP of the LTE RBs that it intends to keep free for a certain time period (e.g., because the current load on the network does not mandate their allocation to primary cellular users). Then, with the proposed approach, the AP transmits pilot signals on the free channels so that they can be used by the contending devices. Simulation results show that a large number of smart meters can be successfully accommodated within a limited coverage area with the proposed approach, while transmitting their measurement data in real-time.
SponsorThis work was made possible by NPRP Grant #4-347-2-127 from the Qatar National Research Fund (a member of The Qatar Foundation). The statements made herein are solely the responsibility of the authors.
Languageen
PublisherElsevier
SubjectAdvanced metering infrastructure
Aloha
Automatic meter reading
OFDMA
Random access protocols
TitleAutomatic meter reading in the smart grid using contention based random access over the free cellular spectrum
TypeArticle
Pagination171-183
Volume Number59
dc.accessType Full Text


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