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Route optimization support in mobile networks is one of the most important concerns in Next Generation Networks (NGNs). NGNs require an efficient route optimization scheme, optimized specially to support nesting of mobile networks. We propose an Extended Mobile IPv6 route optimization (EMIP) scheme to enhance the performance of nested mobile networks. EMIP scheme is based on MIPv6 route optimization...
Internet access for highly mobile users in high-speed trains or cars, underground walkways and tunnels is often challenged by intermittent connectivity with short and unpredictable connectivity opportunities. In such opportunistic communication scenarios, utilizing these connectivity opportunities to the best potential for the mobile user can be crucial to achieve an acceptable overall perceived service...
Network layer indications are not readily available upon a link change; therefore, general dependence on the network layer may introduce unnecessary delays due to network layer signaling for a simple link layer handoff. If information could be gathered at link layer to determine the need for network layer signaling, then both the delay and signaling load could be really improved over current standards...
The aim of this paper is to introduce an approach to providing connectivity on trains connecting to the wider Internet via heterogeneous networks and prioritize traffic according to service classes. In an effort to understand the characteristics of a rail network, studies on real life train demonstrations and implementations are briefly discussed. Experiments using the Ns-2 simulator to measure the...
This study researched on performance increment using gateway FA to reduce delay factor of smooth handoff to the maximum level in mobile IP supporting mobility of IP address in PDA and laptop. In this study analyses of transmission delay and throughput on the performance of previous methods were carried out using NS-2 and performance of all FA buffer and gateway FA also was measured to identify the...
Mobility has become a mandatory feature of the future Internet as mobile computing gains increasing popularity among Internet users. The rapidly evolving heterogeneous wireless environment provides a variety of communication resources for the mobile host. In order to fully benefit of these wireless access networks an efficient and quality oriented mobility management system has to be employed. This...
We propose a middleware called BuddyShare to automatically form an overlay group of nearby friends' mobile phones to collaboratively download data by sharing mobile internet. This system is hypothetical in nature and only work on certain assumptions such as: 1) frequent availability of friends' phone nearby, 2) Sufficient social trust among physically close users to share internet and 3) sufficient...
Mobility of user devices connecting to the Internet is of major interest in today's research in networking. For users as well as for applications, network mobility should be transparent. Reliable transport protocols like TCP has served well the wired Internet where the packet losses are mainly due to congestion, but is not ready for mobile IP wired-cum-wireless environments where the significant packet...
Providing end-to-end communication in heterogeneous Internet working environments is a challenge. Handover delay is one of the problematic issues that users are face in the heterogynous networks. However, in the case of both WiMAX and WiFi technologies located at the same base station (BS); the vertical handover (VHO) delay will be less compared with two conventional WiMAX/WiFi heterogonous networks...
Network mobility (NEMO) protocols can be used to manage aggregate mobility of multiple IP-enabled devices on-board a Low Earth Orbit satellite (a mobile network on-board). NEMO protocols enjoy several performance advantages, such as reduced signaling, increased manageability and conservation of satellite link bandwidth as compared to host mobility protocols for individual devices. In addition, NEMO...
Network mobility (NEMO) basic support protocol is an extension mobile IPv6. NEMO signaling is performed with extended mobile IPv6 messages. NEMO basic support protocol is concerned with managing the mobility of an entire network, it provides for devices or vehicles which move to another point of attachment to the Internet. NEMO can maintain sessions established nodes between the mobile network and...
Peer-to-peer (P2P) data networks dominate Internet traffic. In this work, we study the problems that arise when mobile hosts participate in P2P networks. We primarily focus on the performance issues as experienced by the mobile host, but also study the impact on other fixed peers. Using Bit Torrent as a key example, we identify several unique problems that arise due to the design aspects of P2P networks...
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