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M2M access performance in LTE‐A system
Author(s) -
Yang Bo,
Zhu Guangxi,
Wu Weimin,
Gao Youjun
Publication year - 2014
Publication title -
transactions on emerging telecommunications technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.366
H-Index - 47
ISSN - 2161-3915
DOI - 10.1002/ett.2746
Subject(s) - computer science , air interface , queueing theory , blueprint , interface (matter) , machine to machine , key (lock) , lte advanced , computer network , communications system , wireless , queue management system , transmission (telecommunications) , telecommunications , computer security , engineering , operating system , internet of things , telecommunications link , mechanical engineering , bubble , maximum bubble pressure method
Machine‐type communication emerges recently as a solution to cater for ubiquitous connections between a diversity of devices and the public wireless data networks. Long Term Evolution Advanced system introduces machine to machine (M2M) communication as an important part of realising the blueprint of smart cities. To bring M2M communication into reality, the access procedure is a key problem. Massive access requests on the air interface in M2M communication make the communication scenarios significantly different from the traditional communications, which challenges the cellular access mechanism greatly. In this paper, the challenges of applying M2M through Long Term Evolution Advanced system are discussed. We model the access on the air interface as a queuing system. The queuing theory indicates that the system is not stable when the occupation rate is high. The access performance of M2M is evaluated by system level simulation, which shows that the congestion on the air interface is very serious in some application cases. To ease the congestion on the air interface, this paper proposes a bundling transmission scheme. Copyright © 2013 John Wiley & Sons, Ltd.