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Compared with the unstructured P2P networks, structured P2P networks have good expansibility and robustness. But structured P2P overlay network is directly based on logic network, not too much above the underlying physical network topology structure, which causes a serious topology mismatching between logical topology structure and physical topology structure. About the question, this paper proposed...
In multi-channel wireless communications, Water-Filling (WF) is a fundamental power allocation mechanism for capacity maximization under a given total transmit power. In this letter, we propose simple and fast WF algorithms for achieving agile power allocation, such that the system can better match the dynamic nature of the wireless channels for a better performance. Our algorithms remove the need...
Iris localization is an especially important step in the whole iris recognition system, for it determines the accuracy of matching partially. To improve its accuracy and efficiency, we propose a new iris localization algorithm in this paper, which detects the edge points of iris at some appropriate resolutions and fits circles to these edge points. The experiment results show that the proposed algorithm...
Infeasible paths increase program complexity and program redundancy, generate useless DU(def-use) chains, and affect the result of program static analysis. Based on the valid information produced in the process of program compilation, this paper presents a translucent technique to analyze infeasible paths. It first requires the complier construct an information pool for each judge node and variables...
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