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Mobile Internet access becomes a major research focus with the increase of mobile phones. This paper introduced and summarized a variety of wireless technologies supporting mobile Internet access. Firstly, the current progressing wireless access technologies were valued on their strengths and weaknesses. Then the newest mobility support researches and progresses over IP layer, such as MIP, NEMO, SIP...
China's networks and railways develop rapidly, which urgently requires mobile Internet access. However there exist challenges on network integration of access schemes, on network applications of the transition period, on high cost of all-coverage access, on high bit error rate, on frequent interruption, and on traffic explosion. The proposed multi-homing hierarchy DTN-based train mobile Internet access...
Chinese broadband network is developing rapidly but still far from all coverage for countryside areas, the island of information. Current distance education content is of large multi-media with large bandwidth. So it is critical for education platform to deliver the massive content timely and effectively, yet low-cost, even to the terminals without broadband coverage. Analyzed current mobile Internet...
Mobile Internet access is for the ubiquitous Internet, facing traffic explosion, frequent interruption and network partitioning. DTN-based Ferry Prefetch Scheme (DFP) was designed to increase quality of service on area without broadband wireless networks coverage. Based on bit paradox, Pareto effect and strong substitutability of local resources, DFP proposed a cache overlay layer for media distributaries,...
Utility function recently has been adopted in network studies to describe quality of service. However, the existing utility functions focus only on the effect of power or throughput, so are not suitable to delay and disruption tolerant networking (DTN), where delay and disruption have major impacts on the utility and cannot be ignored. This paper proposes a corresponding sigmoid utility function,...
Some character patterns of mobile station, such as conversation time and call times, obey the Pareto distribution. Based on this point, this paper proposes a pre-anticipated handover scheme to optimize the services for the dominant minority correspondent nodes, to offer better real-time applications and better QoS of TCP connections and to moderate package latency, especially in call initialization...
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