2015/08/11 by Germán C. Madueño, Germán Corrales Madueño, Jimmy J. Nielsen +11
Computer Science · Engineering · Mathematics · #Energy Harvesting in Wireless Networks #FOS: Computer and information sciences #Information Theory (cs.IT) #IoT Networks and Protocols #Networking and Internet Architecture (cs.NI) #Smart Grid Energy Management #Smart Grid Security and Resilience #Wireless Networks and Protocols #cs.IT #cs.NI #math.IT
paper · pdf · doi:10.48550/arxiv.1508.02556
Submitted; v2: revised after review
openalex publication_date 2015/08/11 · arxiv created 2015/11/30 · arxiv updated 2015/12/01 · openalex created_date 2022/08/16 · openalex updated_date 2026/07/28
While LTE is becoming widely rolled out for human-type services, it is also a promising solution for cost-efficient connectivity of the smart grid monitoring equipment. This is a type of machine-to-machine (M2M) traffic that consists mainly of sporadic uplink transmissions. In such a setting, the amount of traffic that can be served in a cell is not constrained by the data capacity, but rather by the signaling constraints in the random access channel and control channel. In this paper we explore these limitations using a detailed simulation of the LTE access reservation protocol (ARP). We find that 1) assigning more random access opportunities may actually worsen performance; and 2) the additional signaling that follows the ARP has very large impact on the capacity in terms of the number of supported devices; we observed a reduction in the capacity by almost a factor of 3. This suggests that a lightweight access method, with a reduced number of signaling messages, needs to be considered in standardization for M2M applications. Additionally we propose a tractable analytical model to calculate the outage that can be rapidly implemented and evaluated. The model accounts for the features of the random access, control channel and uplink and downlink data channels, as well as retransmissions.