Abstract —Handover of mobile equipment (ME) between different access points (APs) is an inevitable problem in the wireless network. Mobility of the mobile equipment can cause degradation of quality of service (QoS). How to satisfy the user's QoS and achieve seamless handover becomes a very worth of study in the field of wireless communication network. In this paper, we proposed a handover management scheme in the WLAN based on Software Defined Networking (SDN) architecture. In this scheme, the handover decision making process is processed layered and we proposed a multiple attributes handover algorithm based on fuzzy logic (FLMAHA). The algorithm utilizes received signal strength (RSS), forecasting RSS and available bandwidth as parameters to design of fuzzy logic system, using fuzzy logic method to process the parameters, and then obtain the quantized value of each network parameters membership. At last through calculating network performance evaluation values to make handover decision. Finally, the experimental results showed that our proposed handover scheme can avoid the “ping pong” effect and ensure QoS.

Index Terms—SDN, Handover, Wireless LAN, Fuzzy Logic

Cite: Maoxin Sun and Hongyan Qian, “Handover Management Scheme in SDN-based  Wireless LAN," Journal of Communications, vol. 11, no. 3, pp. 282-289, 2016. Doi: 10.12720/jcm.11.3.282-289