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To reduce signal overhead, we present a bitmap coding method which just codes changing bits between two continuous bitmaps sent by the same peer. Our method has a novel characteristic that the smaller the bitmap exchange interval is, the shorter the coded sequence is. The average compression ratio of our method is 13.46:1 for real bitmaps crawled from PPLive. For the same bitmap crawled from UUSee,...
Average consensus algorithms are protocols to compute the average value of all sensor measurements via near neighbors communications. They offer a natural tradeoff between the number of messages exchanged among terminals and the accuracy in the computation. Most of the models adopted for the message exchange in the literature, however, neither include explicit rate constraints nor explore the rate...
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