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Network coding is an effective method to improve channel efficiency by reducing the number of transmissions. However, most existing network coding schemes are based on network layer broadcast. As a result packets become vulnerable to channel errors due to lack of retransmissions. In this paper we present a cross-layer signal processing technique and show that network coded signal mixed from different...
A turbo network coding based relay model and its decoding method are proposed for the quasi-static fading multi-access up-link channel. In the model a relay assists two mobile nodes simultaneously by forwarding a network coded version of the two interleaved messages. Access Point (AP) performs joint channel and network decoding with signals received from two mobile nodes and the relay. Compared with...
The unified framework of the JPEG2000 architecture makes practical high quality real-time compression possible even in video mode. The part 3 of the JPEG2000 standard, motion JPEG2000, uses an intra-frame style for video compression which compresses video sequence frame by frame using the JPEG2000 core coding system. However, the compression performance of the JPEG2000 behaves poorly when compressing...
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