Home // ICWMC 2013, The Ninth International Conference on Wireless and Mobile Communications // View article
Authors:
Ahmed Ibrahim
Ahmed Darwish
Shady Elbassiouny
Hani Elgebaly
Keywords: HetNets; LTE; Multi-RAT; Opnet; Prototype; WiFi; WiMAX.
Abstract:
Multiple radio access technologies (Multi-RAT) Heterogeneous Networks (HetNets) are considered as one of the recent fundamental ideas in next generation mobile networks. Multi-RAT HetNets aim to increase the network capacity needed to meet the high data demand of mobile users. In Multi-RAT HetNets, data flow can be offloaded to unlicensed bands (e.g., WiFi) to free some of the resources of the 4G licensed band (e.g. LTE or WiMAX). However, it needs to be guaranteed that the WiFi can provide the needed Quality of Service (QoS). In this paper, we propose multiple QoS-aware 4G/WiFi offloading schemes that try to maximize the utilization of the WiFi air interface, taking into consideration the network loading conditions and maintaining the required QoS. The proposed offloading schemes are evaluated in two 4G/WiFi Multi-RAT testbeds. The first testbed is based on the Opnet network simulator, while the second testbed is based on a real small-cell prototype. The performance evaluation of these offloading schemes is shown in a time-cost tradeoff graph.
Pages: 82 to 88
Copyright: Copyright (c) IARIA, 2013
Publication date: July 21, 2013
Published in: conference
ISSN: 2308-4219
ISBN: 978-1-61208-284-4
Location: Nice, France
Dates: from July 21, 2013 to July 26, 2013