Overload control for Machine-Type-Communications in LTE-Advanced system

Cheng, Ming-Yuan; Lin, Guan-Yu; Wei, Hung‐Yu; Hsu, Alex Chia-Chun

doi:10.1109/mcom.2012.6211484

Cited by 157 publications

(78 citation statements)

References 2 publications

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“…As a consequence, the development of MTC in LTE networks can be restricted by the congestion of the Radio Access Network (RAN) and more precisely of the Physical Random Access Channel (PRACH) [2].…”

Section: Introductionmentioning

confidence: 99%

Latency Efficient Request Access Rate for Congestion Reduction in LTE MTC

Bonnefoi

Maciel

Fernandes

2018

2018 25th International Conference on Telecommunications (ICT)

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Abstract-The development of Machine-Type Communication (MTC) in the Long Term Evolution (LTE) standard can lead to an overuse of the Physical Random Access Channel (PRACH). An efficient way to avoid it consists in reducing the number of requests done by end-devices. In this paper, we first study the probability of collision in a congested LTE-MTC network. As a second step, we analyze the latency in the network as a function of the request access rate. Then, we propose a closed-form for a sub-optimal request access rate. We finally conduct numerical simulations in order to assess the performance of the proposed approximation.

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Section: Introductionmentioning

confidence: 99%

Latency Efficient Request Access Rate for Congestion Reduction in LTE MTC

Bonnefoi

Maciel

Fernandes

2018

2018 25th International Conference on Telecommunications (ICT)

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“…In MTC, a device which has data to send communicates with eNB (evolved Node-B) to reserve a channel resource in the following handshaking procedure [4,5]. First, a device which has data to send selects one of several predefined preamble signatures.…”

Section: Introductionmentioning

confidence: 99%

Efficient Data Forwarding for Machine Type Communications in Internet of Things Networks

Lim

Park

2017

Wireless Communications and Mobile Computing

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The MTC (Machine Type Communications) system is one of the most promising technologies to provide IoT (Internet of Things) applications. The MTC system suffers from congestion due to limited data transmission capacity and burst traffic. The congestion disturbs data delivery, results in an increase of energy consumption due to data retransmission, and finally poses a threat to the providers of IoT applications. In this paper, we focus on the congestion problem and present an efficient data forwarding mechanism to regulate the burst channel access from a large number of MTC devices. To regulate the communication channel access from the devices, we predict the number of devices by separating traffic load into the prediction of the number of devices that newly attempt to have access and the prediction of the number of devices that retry to access the channel. Through simulations, we show that our mechanism improves access success probability and reduces collision probability and access delay.

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“…Since a large number of MTC devices attempt to access a wireless channel within a short period of time, signaling messages sharply increase and congestion is an inevitable consequence. To guarantee a system performance, the congestion should be controlled [3].…”

Section: Introductionmentioning

confidence: 99%

“…Even though many researchers try to propose specific algorithms, it is still open issue for further research [3]. In this paper, we present an algorithm to dynamically configure the barring factor based on the number of colliding devices in ACB.…”

Section: Introductionmentioning

confidence: 99%