Huyin Zhang

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According to the different optimization objects, peer selection strategy can be divided into three categories: robustness of system and load balance oriented, streaming quality oriented and network topology conglomeration oriented. This thesis describes their basic characters, typical methods and the latest progress, and also simulates the peer selection(More)
This paper gives a definition of the communication overhead among nodes in task scheduling and resource management in grid environment, presents rules of building QoS routing tree based on the QoS routing algorithm, proposes grid heap-sort algorithm and QoS routing algorithm, and designs a scheme of grid task scheduling with the help of them. The results of(More)
In advance reservation environment, failure discovery strategy is very important to keep the normal running of whole system. One job's overtime (exceeding its booked time) may lead to a serious of jobs' abnormal termination in co-allocation environment. So there should be some strategies to solve this problem. In this paper, a novel overtime-tolerance(More)
Cognitive Radio Vehicular Ad Hoc Networks (CRVANETs) can resolve the conflicts between limited spectrum resource and vehicular communication service needs, and thus it receives much concern. Most existing routing solutions for Cognitive Radio Ad Hoc Networks (CRAHNs) or VANETs cannot be directly applied to CR-VANETs due to the high mobility of vehicles and(More)
In this paper, we propose a scalable multiview video coding (MVC) algorithm based on Wavelet Pyramids and Set Partitioning in Hierarchical Tree (SPIHT) codec. This algorithm first uses the Mallat pyramid method to decompose the original images into subband of different scales, and then follows the usual phase matching method to conduct disparity estimation(More)
The problem of resource management and scheduling has always been the main challenge in grid. Grid economy is looked on as a good solution for obtaining better performance than other methods for resource management in dynamic grid environments. But, the decision making about resources selection with portfolio optimization has been paid little attention to(More)
Mobile Ad Hoc Networks (MANETs) are self-configuring dynamic networks of mobile devices connected by wireless links without any fixed infrastructure or centralized administration. In order to achieve stable clusters, the cluster-heads (CHs) maintaining the cluster should be stable with minimum re-affiliation times and number of changes on CHs, with maximal(More)