A distributed ADMM approach for mobile data offloading in software defined network

Author

Lanchao Liu ; Xianfu Chen ; Bennis, Mehdi ; Guoliang Xue ; Zhu Han

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Houston, Houston, TX, USA

fYear

2015

fDate

9-12 March 2015

Firstpage

1748

Lastpage

1752

Abstract

Mobile data offloading has been introduced to alleviate the congestion of cellular networks and to improve the quality of service for mobile end users. This paper presents a distributed mechanism for mobile data offloading in software defined network (SDN) at the network edge. In SDN, the data traffic of base stations (BSs) can be dynamically offloaded to access points (APs), which is enabled by the SDN controller. The SDN controller formulates a revenue maximization problem to optimize the data offloading decision, and solves the problem in a fully distributed fashion. The proposed mechanism is based on the proximal Jacobian multi-block alternating direction method of multipliers (ADMM). BSs and APs perform the offloading decision update concurrently, and are coordinated by the SDN controller through dual variables to reach a consensus on the offloading demand and supply. Numerical simulations validate the effectiveness of the proposed algorithm.

Keywords

cellular radio; optimisation; software defined networking; telecommunication traffic; SDN controller; alternating direction method of multipliers; base stations; data traffic; distributed ADMM approach; mobile data offloading; proximal Jacobian multi-block ADMM; revenue maximization problem; software defined network; Conferences; Distributed databases; Jacobian matrices; Mobile communication; Mobile computing; Optimization; Wireless networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference (WCNC), 2015 IEEE

Conference_Location

New Orleans, LA

Type

conf

DOI

10.1109/WCNC.2015.7127732

Filename

7127732