SDRAN-based user association and resource allocation in Heterogeneous Wireless Networks

M. Zalghout (1) , A. Khalil (1) , Matthieu Crussière (1) , S. Abdul-Nabi (1) , M. Helard (1)

1 IETR - Institut d'Électronique et des Technologies du numéRique

Integrating different types of wireless access technologies in heterogeneous networks provides flexible choices for users to handover to a more preferable network that satisfies their needs. In this paper, we discuss the recent 802.21.1 Software Defined Radio Access Network (SDRAN) architecture that couples the Software Defined Networking (SDN) mechanisms by the IEEE 802.21 Media Independent Handover Services. Based on this architecture, we propose a centralized handover algorithm that manages user association and downlink capacity resource allocation. The algorithm is formulated as a Generalized Assignment Problem (GAP) which maximizes the overall profit of mobile nodes which is studied in terms of power consumption and Received Signal Strength (RSS). Comprehensive simulation has been conducted; It is shown that the formulated algorithm reduces the overall consumed power and increases the average relative received signal strength while demanding an extra number of HOs. © 2016 IEEE.

Mots clés: Combinatorial optimization; Electric power utilization; Heterogeneous networks; Radio systems; Resource allocation; RSS; Software radio; Wireless networks; Wireless telecommunication systems; Generalized assignment problem; Heterogeneous wireless network; IEEE 802.21.1; Media independent handover; Received signal strength; Software defined networking (SDN); Vertical handovers; Wireless access technology; Network architecture

Domaines: Electronique; Réseaux et télécommunications [cs.NI]

M. Zalghout, A. Khalil, Matthieu Crussière, S. Abdul-Nabi, M. Helard. SDRAN-based user association and resource allocation in Heterogeneous Wireless Networks. 2016 IEEE Wireless Communications and Networking Conference Workshops, WCNCW 2016, Apr 2016, Doha, Qatar. pp.296--302, ⟨10.1109/WCNCW.2016.7552715⟩. ⟨hal-01380637⟩