Modelling of synchronisation and energy performance of FBE- and LBE-based standalone LTE-U networks

Jiamin Li; Hangguan Shan; Aiping Huang; Jiantao Yuan; Lin X. Cai

Modelling of synchronisation and energy performance of FBE- and LBE-based standalone LTE-U networks

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Author(s): Jiamin Li^{1, 2} ; Hangguan Shan^{1, 2} ; Aiping Huang^{1, 2} ; Jiantao Yuan^{1, 2} ; Lin X. Cai³
- Affiliations: 1: Zhejiang Provincial Key Laboratory of Information Processing and Communication Networks , Hangzhou , People's Republic of China ;
  2: College of Information Science and Electronic Engineering , Zhejiang University , Hangzhou , People's Republic of China ;
  3: Department of Electrical and Computer Engineering , Illinois Institute of Technology , Chicago , USA
Source: Volume 2017, Issue 7, July 2017, p. 292 – 299
DOI: 10.1049/joe.2017.0039 , Online ISSN 2051-3305

This is an open access article published by the IET under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/)

Received 08/02/2017, Accepted 13/06/2017, Published 16/06/2017

Without the aid of licensed channel, deploying long-term evolution (LTE) networks over unlicensed spectrum (named standalone LTE-U networks) faces the difficulty of establishing and maintaining synchronisation between user equipments and base stations. In this work, considering the two modes of listen-before-talk-based channel access scheme, frame-based equipment (FBE) and load-based equipment (LBE), the authors propose analytical frameworks to study the successful probability of synchronisation and the energy consumption of synchronisation in a standalone LTE-U network. Specifically, for the LBE mode, the authors also propose a Lattice-Poisson algorithm-based approach to derive the distribution of the channel non-occupancy period of a standalone LTE-U network. Furthermore, the authors explore the impact of diverse protocol parameters of both FBE and LBE modes on the two studied performance metrics. Simulation results demonstrate the accuracy of the analysis, and shed some light on the selection of FBE and LBE for standalone LTE-U networks, in terms of synchronisation, energy consumption, and throughput of standalone LTE-U and Wi-Fi networks.

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Modelling of synchronisation and energy performance of FBE- and LBE-based standalone LTE-U networks

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