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The use of relay stations in the cellular network is a good candidate method to enhance the cell edge data rate, and to provide homogeneous QoS experience for users in different locations. We discuss the decode-and-forward type relay station within the context of the 3GPP RLC/MAC layers. The emphasis is on proper RLC layer operation for the relay-enhanced-cell (REC). RLC layer evolvement in the future...
Semantic Web makes the automatic discovery and invocation of Web services become possible. But existing methods perform the capability matching, which is crucial for service discovery, either only according to inputs and outputs (IO), which results in a not very precise matching, or trying to match the precondition and effect (PE) of services by FOL, which results in an undecidable reasoning. This...
Ubiquitous wireless networking calls for efficient dynamic spectrum allocation (DSA) among heterogeneous users with diverse transmission types and bandwidth demands. To meet user-specific quality-of-service (QoS) requirements, the power and spectrum allocated to each user should lie inside a bounded region in order to be meaningful for the targeted application. Most existing DSA methods aim at enhancing...
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