Haixiang Wang

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In this paper, we investigate the benefits of applying a form of network coding known as random linear coding (RLC) to unicast applications in disruption-tolerant networks (DTNs). Under RLC, nodes store and forward random linear combinations of packets as they encounter each other. For the case of a single group of packets originating from the same source(More)
—In this paper, we investigate the problem of determining the routing that minimizes the maximum/average delivery time or the maximum/average delivery delay for a set of packets in a deterministic Delay Tolerant Network, i.e. in a network for which all the nodes' transmission opportunities are known in advance. While the general problem with multiple(More)
Skyline queries are usually associated with user preferences which are dependent on his/her current contexts. For most contexts are from sensing devices, uncertainty is along with the contexts. In this paper, asymptotic-efficient skyline query processing algorithms over uncertain contexts are proposed. First possible world semantics model is utilized to(More)
An interval basis is constructed from the Chui-Lian multiwavelet family of approximation order three. To the symmetric and antisymmetric pairs of scaling functions and wavelets are added edge functions which preserve the approximation order and provide the basis for an orthogonal Discrete Multiwavelet Transform on the interval. This transform applies to(More)
Orthogonal compact-support Daubechies wavelets are employed as bases for both space and time variables in the solution of the time-dependent Schrodinger equation. Initial value conditions are enforced using special early-time wavelets analogous to edge wavelets used in boundary-value problems. It is shown that the quantum equations may be solved directly(More)