Abstract
The Wireless Fidelity (WiFi) is the business name given to the 802.11b and 802.11g IEEE standard by the WiFi Alliance, formerly known as Weca industry with more than 200 member companies dedicated to supporting the growth of wireless LANs. This standard is currently one of the most used standards in the world. The theoretical data rates of 802.11b are 11 Mb/s and 54 Mb/s for 802.11g. This article presents Handover's improvement performance and quality of service (QoS) parameters and they are: end-to-end delay, latency, jitter, lost packets, and Mean Opinion Score (MoS), under networks Wi-Fi with the help of the OMNeT 4.6 ++, by implementation of a new algorithm at the level of the SDN controller that allows handover management without breaking the connection by respecting the priority per class of traffic. The realization of this work is based on the intra-Wi-Fi mobility, that it is adopted by a macro mobility of level 3 and it is MIPv6 as well as it exploited the protocol of Voice over IP that it is SIP, and the implementation of SDN rules on the OpenFlow protocol.
Highlights
Software Defined Network (SDN) [1] is a new network paradigm; it is used to reduce the complexity of network technology
The following work aims to expose a simulation implemented under OMNeT 4.6++, to assess the performance of Handover and the quality of service (QoS) with two architectures one Wi-Fi [2] without SDN and the second offers the improvement of the implementation the SDN via the OpenFlow protocol [3]
It is widely used by companies, because of the growing demand, users have ubiquitous access to wireless services, what it led to the deployment of forced use of this wireless access technology such as Wi-Fi, it offers a level of quality within reach, but the problem is that the number of devices is increasing which reduces the performance of travel time Handover and QoS in terms of end-to-end delay, latency, jitter, the number of lost packets, and Mean Opinion Score (MoS), for all these reasons, this work proposes as a solution to implemented SDN technology for Wi-Fi to better optimize performance
Summary
Software Defined Network (SDN) [1] is a new network paradigm; it is used to reduce the complexity of network technology. The IEEE 802.11 networks are becoming increasingly popular as they allow users to connect to the Internet at an affordable price with relatively large bandwidth and the ability to roam without being disconnected. Nowadays IEEE 802.11 wireless network cards are deployed in the majority of technologies such as PDAs and laptops relatively important and the ability to move without being disconnected. 802.11 wireless network cards are deployed in the majority of technologies such as PDAs and laptops. The major problems of these networks are the lost rate and the delay variation knowing that multimedia applications are very demanding. A new approach has recently been proposed to remedy its problems It consists of the election of a receiver called leader to ensure the acknowledgment of received packets. The transmitter can adapt to the physical rate and retransmit the lost packets
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