Po-Ying Liao

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The purpose of Cognitive Radio (CR) technology is to improve the spectrum utilization and the spectrum selection is one of the important issues to achieve this objective. In CR environment, many secondary users (SU) share the available spectrum and the SU shall properly select the channel to avoid congestion on the same channel so that the throughput can be(More)
This paper proposes a heuristic approach to group the peer to peer (P2P) users for sharing the video on demand (VoD)programs in an efficient way. The underlined grouping scheme characterizes the demand behavior to group correlated users into VoD sharing group so that the transmission efficiency can be improved when compared with that without grouping(More)
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