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Mobile edge computing is a novel technique in which mobile devices offload computation-intensive tasks with stringent delay requirements to the edge cloud. However, the limited computational resource in the edge cloud may result in the Quality of Service degradation. In this paper, we address this issue by coordinating the heterogeneous cloud which includes the edge cloud and the remote cloud. Considering...
We consider a mobile cloud computing scenario consisting of one user with multiple independent tasks, one computing access point (CAP), and one remote cloud server. The CAP can either process the received tasks from the mobile user or offload them to the cloud, providing additional computation capability over traditional mobile cloud computing systems. We aim to optimize the offloading decision of...
This paper considers the design of cross-layer opportunistic transport for stored video over wireless networks with a slow varying (average) capacity. We focus on two key ideas: (1) scheduling data transmissions when capacity is high; and (2), exploiting knowledge of future capacity variations. The latter is possible when users' mobility is known or predictable, e.g., users riding on public transportation...
Presence information contains all the context about users, services and devices that applications need to take more proactive and intelligent decisions. SIP/SIMPLE is the de facto framework for initiating, managing and personalizing presence-based communications in the Next-Generation Networks. However, SIMPLE subscription model generates a traffic overload that is restraining mobile operators from...
Recently, smart grid has been received considerable attention for the future power system development. Many advanced wireless technologies are being investigated to be used for the communication layer of smart grid. Among of those, TV band devices (TVBDs) are newly introduced as an appropriate technology for the management and coordination of power consumption. By applying TVBDs for smart meter, two-way...
In mobile computing environments, the limited bandwidth of wireless communications, the weak capability of mobile computing equipments and the valuable power make it difficult for mobile devices to be maintained with the network all the time. Cache technique caches part of data in the clients to reduce the query of database server, so it solves the problem to some extent. Research on cache strategy...
The increasing request for mobile multimedia services have motivated relevant standardization efforts, such as the IP multimedia system (IMS) to support session control, mobility, and interoperability in all-IP next generation wireless networks. Notwithstanding their increasing diffusion, IMS solutions still exhibit limited support for service scalability, especially for data intensive services such...
In this study, feasibilities of HTTP specific acceleration and TCP optimization in mobile network are analyzed through comparisons. Based on these analyses, practicable accelerator architectures for Web latency reduction are presented. Furthermore, we proposed that a boost in performance is feasible by either deploying cooperative proxies with concurrent connection or combining the characteristics...
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