A comparative analysis and survey of handoff for VoIP applications in mobile IPv6 protocols

Abstract

Internet access through mobile devices is used increasingly. Data communications via Internet performed by mobile users need to kept in order offering better services especially for live streaming application such as VoIP. However, since the movement of users changes rapidly to their attachment points (AP), the handoff process needs to be taken into account. Several MIPv6 protocols have been proposed by IETF to solve the continuity communication of users. Users are supposed to be unaffected by this handoff mechanism. Those protocols are analyzed in term of the required time (delay) it takes when the handoff occurs. The results of delay of the handoff process are then compared with QoS for VoIP applications so as to obtain a better MIPv6 protocol that fulfills VoIP requirements. (Abstract)

Modeling of Seamless Vertical Handover Mechanism using Demanded Resource Identification & Mapping

“…For an example, the research approaches that states migration of node from WLAN to CDMA work efficiently may not work if CDMA is changed to 4G or something else. The change of access technologies has significant impact on the vertical handover process and this problem is very much overlooked [6,7,8]. At the same time, identification of a precise amount of resource requirement of a node is extremely important for a mobile station moving to a new foreign network without which the service relaying will be incompatible.…”