Open AccessModelling of synchronisation and energy performance of FBE‐ and LBE‐based standalone LTE‐U networks
Author(s) -
Li Jiamin,
Shan Hangguan,
Huang Aiping,
Yuan Jiantao,
Cai Lin X.
Publication year - 2017
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2017.0039
Subject(s) - computer science , energy consumption , channel (broadcasting) , throughput , user equipment , lte advanced , frame (networking) , base station , computer network , real time computing , engineering , wireless , telecommunications , telecommunications link , electrical engineering
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.