Title: Improved random access for contention bandwidth request in LTE networks under extended typical urban 70 channel

Authors: Rajesh Anbazhagan; Nakkeeran Rangaswamy

Addresses: School of Electronics Engineering, VIT University, Vellore 632014, Tamilnadu, India ' Department of Electronics Engineering, School of Engineering and Technology, Pondicherry University, Puducherry, India

Abstract: In this paper, a group-based random access configuration is proposed for long term evolution (LTE) networks to improve the probability of detection under the multipath fading channel of extended typical urban 70 (ETU70) with high delay spread. By suggesting a scheme to account the possible failure events, we develop an analytical model for contention-based bandwidth request in LTE networks. In addition, two backoff mechanisms are proposed to resolve contention among user equipments effectively. The developed model is verified by means of simulation result.

Keywords: random access; bandwidth request; long term evolution; LTE networks; contention mechanism; multipath fading channels; analytical modelling; simulation.

DOI: 10.1504/IJICT.2017.083271

International Journal of Information and Communication Technology, 2017 Vol.10 No.3, pp.308 - 317

Received: 04 Dec 2014
Accepted: 11 May 2015
Published online: 23 Mar 2017 *

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