Wei Wang

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We present a new adaptive broadcast dissemination model to support flexible responses to client requests. Several features distinguish our model. First, client queries do not target individual documents, but specify the required information by attributes. Second, clients are satisfied by responses that are sufficiently close to the desired information.(More)
We present PERT, a power-efficient scheme to deliver real-time data packets in sensor networks. Time-sensitive sensor data is common in applications such as hazard monitoring systems, traffic control systems and battlefield command systems. Such data are associated with end-to-end deadlines, within which they must reach the base station. We make two(More)
A location service is an essential prerequisite for geographic routing protocols for MANETs. We present VHLS, a new distributed location service protocol , that features a dynamic location server selection mechanism and adapts to network traffic workload, minimizing the overall location service overhead. We demonstrate that the ratio of location queries to(More)
— We present a power-efficient scheme to deliver time sensitive data packets in sensor networks. Data generated by sensors are frequently time sensitive in applications such as hazard monitoring systems, traffic controlling systems and battlefield commanding systems. Such data are associated with end-to-end deadlines, within which they must reach the base(More)
—We present a new adaptive and energy-efficient broadcast model to support flexible responses to client queries. Clients do not have to request documents by name, since they may know the characteristics of the documents but not the document names or IDs. In our model, clients specify requirements through attributes, and servers broadcast documents that(More)
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