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Optimized Flow Management using Linear Programming in Integrated Heterogeneous Networks

Authors:
Umar Toseef
Yasir Zaki
Andreas Timm-Giel
Carmelita Görg

Keywords: LTE and WLAN interworking, User QoE optimization, Linear programming, Access link modeling

Abstract:
There have been tremendous advances over the past decades when it comes to wireless access technologies. Nowadays, several wireless access technologies are available everywhere. Even mobile devices have evolved to support multiple access technologies (e.g., 3G, 4G or WiFi) in providing the best possible access to the Internet. However, all of these devices can communicate using one access technology at a time. There is a need of the integration of all these access technologies to cooperate and work simultaneously in a heterogeneous environment from which both the end users, as well as, the mobile operators can benefit. This paper investigates how to tackle the simultaneous usage of wireless access technologies in the downlink. For this purpose, a practical example of 3GPP LTE and non-3GPP WLAN integrated heterogeneous network is considered. Furthermore, a novel decision mechanism is proposed, that focuses on optimizing the flow management of user traffic flows based on a mathematical formulation of the system. The mathematical model is implemented using the Linear Programming techniques. The paper demonstrates the gains that are achieved from using such innovative decision mechanism, as well as, the benefits that arise from the simultaneous usage of wireless heterogeneous accesses.

Pages: 218 to 223

Copyright: Copyright (c) IARIA, 2012

Publication date: November 18, 2012

Published in: conference

ISSN: 2163-9027

ISBN: 978-1-61208-231-8

Location: Lisbon, Portugal

Dates: from November 18, 2012 to November 23, 2012