Alexander Allan

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Conventional space –time turbo trellis coding (STTuTC) schemes allocate transmit power equally to the available antennas. This is not optimal if channel state information (CSI) is available at the transmitter. A STTuTC scheme is considered with partial CSI knowledge that optimally allocates power to the transmit antennas. This scheme is referred to as(More)
For many applications it is desirable to be able to estimate latency in a decentralised network when it is not practical to explicitly measure it. It has previously been shown that latency can be approximated by assigning hosts coordinates in some geometric space such that the Euclidean distance between two hosts in this space is equivalent to latency, a(More)
—Locality to other nodes on a peer-to-peer overlay network can be established by means of a set of landmarks shared among the participating nodes. Each node independently collects a set of latency measures to landmark nodes, which are used as a multi-dimensional feature vector. Each peer node uses the feature vector to generate a unique scalar index which(More)
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