Abstract
Planning and Profit Sharing in Overlay WiFi and LTE Systems toward 5G Networks Danielle Saliba, Rodrigue Imad, Sebastien Houcke, Bachar El Hassan Abstract Nowadays, with the increasing demand for data traffic and with the massive foreseen deployment of the Internet of Things (IOT), higher data rates and capacity are required in mobile networks. While Heterogenous Networks (HetNets) are under study toward 5G technology, Wireless Fidelity (WiFi) Access Points (APs) are considered a potential layer within those multiple Radio Access Technologies (RATs). For this purpose, we propose in this paper a novel WiFi dimensioning method, to offload data traffic from Long Term Evolution (LTE) to WiFi, to ensure a balanced traffic between both networks. This dimensioning method, calculates the remaining available capacity of the WiFi network based on the estimated load of each WiFi physical layer channel, by considering the channels overlapping characteristic, thus calculating the minimum needed number of WiFi APs that ensure same or better throughput for the transferred LTE heavy users. Having the minimum needed WiFi APs that will support LTE, we estimate then the profit sharing between LTE and WiFi by considering data bundles subscription revenues and the infrastructure capital and operational costs. We calculate for each network the profit share using a coalition game theory Shapley value that pinpoints the benefit of the cooperation using the proposed dimensioning method. Full Text: PDF DOI: 10.15640/jcsit.v7n2a3
Highlights
With the increasing demand for wireless communication technologies and data traffic, the main limitation in mobile networks is the lack of available licensed spectrum
Most of the current macro-cellular traffic comes from indoor locations or mobile users with fixed positions [2]; multi Radio Access Technologies (RATs) solutions as the integration between Long Term Evolution (LTE) and Wireless Fidelity (WiFi) is an alleviating solution which aims to distribute the connected users efficiently between the Heterogenous Networks (HetNets) and ensure throughput stability for the best Quality of Service (QoS) and capacity limitations management
We have proposed a mathematical approach to find the minimum required number of WiFi Access Points (APs) to support the heavy users‘ traffic transferred from LTE to WiFi network, based on the remaining available capacity of the WiFi network
Summary
With the increasing demand for wireless communication technologies and data traffic, the main limitation in mobile networks is the lack of available licensed spectrum. This paper proposes a novel method of planning the offload from LTE to WiFi in addition to the dimensioning of the WiFi network to support the offloaded traffic This method calculates the minimum needed number of WiFi APs based on the estimated average available capacity of the WiFi overlapped physical channels the available capacity of the WiFi network. These parameters are estimated through the CQI feedback that is provided by the users, once every period T Based on this policy, the operator determines which users consume the highest power and are most costly and should be transferred to WiFi. the proposed dimensioning method for the minimum needed number of WiFiAPs K is presented
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