Latency Low Handover Mechanism Considering Data Traffic Lost Preventing for Proxy Mobile IPv6 Over WLAN

Abstract

Typical PMIPv6 supports mobility management for the Mobile Host (MH) in localized domains over variant Wireless Local Area Network technologies. The typical PMIPv6 adopted in reactive mode in which break-before-make technique may concern,which results in long disruption latency and inevitable data traffic loss that negatively affects MH's communication performance. This article proposes a proactive latency low handover mechanism, which corresponds to make-before-break technique in order to support MH's seamless and fast roaming in PMIPv6 network. The proposed mechanism proactively performs a pre-registration and pre-access authentication processes tightly together intended for the MH in advance of a handover situation involved in typical PMIPv6, thereby enabling the MH to re-configure its interface more quickly after a handover. Consequently, the associated mobility-related signallings along with their latencies are reduced significantly and the continuity of the MH communication session is granted. Furthermore, an efficient buffering technique with optimized functions is introduced at the MH's anchor mobility entity to prevent data traffic loss and save their transmission cost. Through various simulation evaluations via ns-2, we study and analyse different mobility aspects, such as handover latency, data traffic loss, throughput, end-to-end traffic delay, traffic transmission cost and signalling cost,with respect to different traffic sources like CBR-UDP and FTP-TCP. Several experiments were conducted, revealing numerous results that verify the proposed mechanisms' superior performance over existing scheme.

Design of Optimized Multimedia Data Streaming Management Using OMDSM over Mobile Networks

“…Hence, the transmission window of the sender of the TCP is dropped and frequent timeouts occur resulting to a degraded throughput. In order to improve the performance of the TCP, the snoop protocol has been proposed while recovering the wireless errors locally in a wireless LAN environment [12,20]. In this section, a new data traffic controller scheme is proposed to manage a packet flow which can support a reliable traffic QoS and multimedia packet realignment scheme to enhance the performance of TCP in IP-based wireless networks through the disordered packets elimination throughout the handover process.…”

Improvement in the Mobility of Mobile IPV6 Based Mobile Networks using Reverse Routing Header Protocol and Fast Handoff

“…It might seem that PMIPv6 does offer some solution to the handoff latency issues of Mobile IPv6 but PMIPv6 has its own share of drawbacks. Solutions to some of the problems such as the disruption latency and data loss due to traffic faced by PMIPv6 in localized domains are offered in [15]. In theory, at least, PMIPv6 is shown to possess lower handoff latency as compared to host-based mobility management protocols like MIPv6 or Hierarchical MIPv6.…”