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http://dx.doi.org/10.3745/KTSDE.2014.3.11.487

Technical Trend and Improvement of Congestion Control for Machine-to-Machine Communications in 3GPP LTE-A Systems  

Kim, Jae-Hyun (LG전자 차세대통신연구소)
Kim, Seog-Gyu (안동대학교 정보통신공학과)
Publication Information
KIPS Transactions on Software and Data Engineering / v.3, no.11, 2014 , pp. 487-494 More about this Journal
Abstract
This paper focuses on an advanced congestion control scheme for M2M(Machine-to-Machine) communications in 3GPP LTE-A standard. A large number of MTC(Machine-type-Communication) devices try to access to LTE-A networks and send data to the networks all at once. In this characteristics, M2M communications will bring the serious network congestion problems into LTE-A cellular networks. To solve this critical problem, a congestion control mechanism will be required and it has been studied since Rel-10 LTE-A systems based on backoff mechanism for mobility management and session management. In this paper, we briefly introduce the main concept and operation about the congestion control scheme in 3GPP LTE-A standard. Also, simulation results for the basic congestion control and advanced congestion control scheme in MTC communication environment are provided and the improvement direction is considered in future 3GPP LTE-A standard.
Keywords
Congestion Control; M2M; MTC; Backoff Timer; 3GPP Standard;
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