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The following topics are discussed: multimedia signal processing and communications; theory and methods of signal processing; neural networks and computational intelligence; and theory, design and implementation of circuits and systems.
In this paper, a weight method with using a reduced lookup table is developed to decode the three possible errors in (23, 12, 7) Golay code. The reduced lookup table consists of syndrome patterns and corresponding error patterns which only have one and two errors occurred in the message block of the received codeword. The useful proposed algorithm makes use of the properties of cyclic codes, weight...
Network coding can facilitate the communications from a sender to a set of receivers in a network by enlarging the multicast throughput. However, when applying network coding in practical network, problems such as link delay, delay jitter, and random link loss may seriously impair the network coding based multicast communications. In this paper, we carefully analyze the insufficiencies of the existing...
Low-density parity-check (LDPC) codes of column weight two, also called cycle codes, can be constructed based on connected simple graphs. In this paper, efficiently encodable cycle codes and modified Repeat-Accumulate codes based on Hamiltonian graphs with large girths are devised. Specifically, the Hamiltonian property of the graphs is exploited to obtain efficient encoder structures and a concise...
This speech will present the state-of-the-art of the CNN (Cellular Neural Network) universal chip and its future applications. The speech will last two hours without coffee break. After the speech, a 20 minutes interactive talk among the speaker and audience will be held on the great event: Experiment Verification of Memristor by HP researchers has been done last month. As is well known that the Memristor...
Due to advances in micro-sensors, wireless networking, and embedded processing, ad-hoc networks of sensors (popularly known as sensor networks) are becoming increasingly available for commercial, industrial, and military applications such as health and environmental monitoring (e.g., patient care, traffic, habitat, pollutant), industrial sensing and diagnostics (e.g., factory automation, appliances),...
Parallel-input parallel-output (PIPO) structure for quasi-cyclic low-density parity-check (QC-LDPC) codes is proposed in this paper to implement a faster and more efficient QC-LDPC encoder than that based on conventional serial-input parallel-output (SIPO) or parallel-input serial-output (PISO) structure. An encoding architecture based on the proposed PIPO structure for multi-rate QC-LDPC codes employed...
Digital image transmission without channel coding and with turbo product codes (TPCs) as channel coding scheme over AWGN channel is studied. We propose an improved decoding algorithm for TPCs based on computing extrinsic information for partial bits. In the proposed decoding algorithm, we neglect computing extrinsic information for those bits that are reliable enough for making decoding decisions...
In this paper, we proposed a new method for constructing quasi-cyclic low-density parity-check (QC-LDPC) codes based on circulant permutation matrices via the one-coincidence sequences. The main advantage is that QC-LDPC codes with a variety of block lengths and rates can be easily constructed with no cycles of length four or less. Simulation results show that the proposed QC-LDPC codes perform slight...
In this paper, a scheme of signal space diversity based on non-binary LDPC codes is presented. Signal space diversity can provide good performance gains over fading channels with multi-dimension rotated constellation. This paper studies the extension of such schemes with a non-binary code. It is shown that non-binary LDPC-coded modulation with signal space diversity over a fading channel may lead...
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