NDLI: A novel random access scheme for stationary machine-type communication devices

Content Provider	IET Digital Library
Author	Zhang, Mingyu Li, Ying Guo, Xudong
Abstract	The long term evolution (LTE) cellular network, primitively designed for human-to-human communications, is attracting more and more attention in machine-to-machine communication scenarios. However, when a massive number of machine-type communication (MTC) devices require access to the network simultaneously, the existing random access mechanism in LTE networks will inevitably suffer from severe congestion. In order to address this problem for stationary MTC devices, the authors propose a novel random access scheme. In the proposed scheme, an alleviating-collision based timing-advance selection (ACT A S) algorithm is designed where, aided by a special preamble placement method, the eNodeB (eNB) can estimate the number of contenders with different timing advance (T A ) indices. According to the estimated results, the eNB can choose the T A index to be contained in the random access response information. In addition, they further analyse the number of MTC devices which could successfully access the network in each random access slot. The simulation results prove the accuracy of the throughput analysis as well as the remarkable performance of the proposed random access scheme in terms of the number of required slots to serve all the devices.
Starting Page	2448
Ending Page	2453
Page Count	6
ISSN	17518628
Volume Number	12
e-ISSN	17518636
Issue Number	Issue 19, Dec (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/12/19
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2018.5445
Journal	IET Communications
Publisher Date	2018-08-24
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Alleviating-collision Based Timing-advance Selection Algorithm Cellular Radio ENB ENodeB Human-to-human Communication Long Term Evolution Long Term Evolution Cellular Network LTE Network Machine-to-machine Communication Machine-to-machine Communication Scenario Mobile Radio System Novel Random Access Scheme Preamble Placement Method Random Access Mechanism Random Access Response Information Random Access Slot Stationary Machine-type Communication Device Stationary MTC Device Throughput Analysis Timing Advance Indices
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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