M2M Communications in LTE Systems
(English)In: Wireless networks, ISSN 1022-0038, E-ISSN 1572-8196Article in journal (Other academic) Submitted
In wide-area applications, low-cost and massive machine to machine (M2M) communications provided bycellular networks will be one main driver for the success of future Internet of Things (IoT) development. The first directconsequence of the proliferation of IoT is that large numbers of devices will produce huge quantities of sporadic data andsignificantly higher capacity of cellular networks will be needed - not in terms of megabits transported, but the numberof machines sustained. In this paper, we will investigate the support of M2M communications in LTE systems. The goalof this paper is to survey how the existing LTE architecture supports M2M traffic in terms of capacity, coverage, andsignaling, assuming a certain usage scenario and traffic pattern. Solutions are suggested for issues that arise whena large amount of M2M traffic is transported over an LTE network. We will show that the capacity and coverage arenot the key issues; instead the signaling is the main bottleneck, especially the ones related to the RACH. Finally, as atypical illustrating example, we will study in detail how Smart Metering application can be supported in LTE systems andinvestigate thoroughly solutions to the key bottlenecks in this paper.
Research subject SRA - ICT
IdentifiersURN: urn:nbn:se:kth:diva-134016OAI: oai:DiVA.org:kth-134016DiVA: diva2:664373
ProjectsLow-energy wireless systems
QS 20142013-11-142013-11-142014-02-18Bibliographically approved