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Puncturing is a good way to achieve Rate-Compatible (RC) family codes with high rate. In this paper, asimple yet efficient puncturing strategy for Low Density ParityCheck (LDPC) codes with diagonal structure is proposed andanalyzed. In order to minimize the recovery step of puncturednodes, all the parity nodes (PNs) are assumed being punctured atfirst and then recovered step by step. The algorithm...
In this paper, we propose a new multicast subgraph construction algorithm and a distributed source coding-based multicast (DSCM) protocol for multihop wireless networks. The DSCM emphasize reliability, rate optimality, and energy efficiency. Both algorithms are based on local knowledge of the network. DSCM uses rateless error correcting codes to provide reliability and rate optimality, and distributed...
<para> In this paper, we devise a rational curve fitting algorithm and apply it to the list decoding of Reed–Solomon and Bose–Chaudhuri–Hocquenghen (BCH) codes. The resulting list decoding algorithms exhibit the following significant properties. <orderedlist numeration="bullet"> <listitem><para>The algorithm achieves the limit of list error correction capability (LECC)...
In this paper, we propose a cross-layer optimization approach that exploits retransmission diversity in wireless CDMA communications. Conventionally, data packets that are not correctly detected are usually dropped. These dropped packets can be used to help data packet detection. By exploiting all the retransmitted packets, data packets can be correctly detected with higher probability. The proposed...
Due to resource constraints, digital image transmissions are a significant challenge for image sensor based wireless sensor networks (WSN). In this paper, we propose a novel robust and energy-efficient scheme, called image component transmission (ICT) in WSN by providing various levels of reliability during image transmissions. Essential components such as the information for the positions of significant...
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