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Extending SSM to MIPv6 – problems, solutions and improvements

100%

Schmidt T. , Wählisch M.

Computational Methods in Science and Technology

2005

tom Vol. 11, nr 2

147-152

Multicast data delivery carries distinct importance in mobile wireless environments, where bandwidth is limited and transmission channels are shared between users. The development of mobile multicast protocols consequently exhibits emerging interest. As the common approach of Any Source Multicast distribution is burdened with intricate routing procedures, the spread of multicast-enabled network infrastructure remains hesitant. I t is widely believed that simpler mechanisms for group distribution in Source Specific Multicast (SSM) will lead to a pervasive dissemination of multi-cast infrastructure and services. However, SSM is designed for the a priori known and changeless addresses of multicast sources and thus withstands any easy extension to mobility. This paper reviews the state-of-the-art in current work to extend SSM to Mobile IPv6 networks. The principle conceptual problems are discussed and analysed. Propositions for improvement and possible directions to proceed further in SSM source mobility are presented.

Determination of Average Handover Latency in Bi-Directional Tunneling Method in MIPv6 Networks

75%

Malekin R. , Abdullah A. H.

Przegląd Elektrotechniczny

2013

tom R. 89, nr 4

156-159

Mobile IP allows for a Mobile Node to remain reachable during handover to a new foreign network. When an mobile node moves to a new network, it will be unreachable for a period of time. This period is referred to as handover latency. In general, it is caused by the time used to discover a new network. This period of time for real-time applications, such as video coference and VOIP, which are time sensitive should be very short. IP mobility must be able to support performance in terms of initializing the handover as well as smoothing the process. In this paper, we evaluate handover latency based on highest probability of the latency in mobile Internet protocol verson 6 networks when mobile and correspondence nodes are using bi-directional tunneling over mobile IPv6 networks through simulation.

W artykule omówiono zagadnienie opóźnienia przejścia sygnału użytkownika między dwoma sieciami komórkowymi, w przypadku wyjścia z zasięgu jednej z nich. W oparciu o symulacje wykonano szacowane obliczenia opóźnienia przekazania sygnału, w oparciu o czynnik największego prawdopodobieństwo opóźnienia w sieci mobilnego internetu o protokole w wersji 6. Badanie przeprowadzono dla przypadku obustronnego tunelowania dwukierunkowego w sieci mobilnej IPv6.