Title :
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
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;
Conference_Titel :
Wireless Communications and Networking Conference (WCNC), 2015 IEEE
Conference_Location :
New Orleans, LA
DOI :
10.1109/WCNC.2015.7127732
