Because of their excellent error-correcting performance, low-density parity-check (LDPC) codes have recently attracted a lot of attention. In this paper, we are interested in the practical LDPC code decoder hardware implementations. The direct fully parallel decoder implementation usually incurs too high hardware complexity for many real applications, thus partly parallel decoder design approac...

Ultra high-speed block turbo decoder architectures meet the demand for even higher data rates and open up new opportunities for the next generations of communication systems such as fiber optic transmissions. This paper presents the implementation, onto an FPGA device of an ultra high throughput block turbo code decoder. An innovative architecture of a block turbo decoder which enables the memo...

W represents a message. We will often consider that it is the output of the compressor. The encoder receives W and encodes it to X. The encoder puts X into the channel and Y n is the output the decoder receives. Finally, the decoder tries to estimate W through Y . The decoder’s estimate is denoted by Ŵ . Our goal is to understand what kind of encodings are such that Ŵ is the same as W with high...

Turbo decoding is viewed as superior alternate decoding technique in communication system, the circuit complexity and power consumption of turbo decoder implementation can often be prohibitive for power constrained system. To address these issues a power efficient turbo decoder based on soft out viterbi algorithm is designed. SOVA based turbo decoder can be implemented with high throughput and ...

Modern wireless communication systems demanding high data rate operating in bandwidth deficient world is using Multiple Input Multiple Output (MIMO) antenna arrangement. MIMO arrangement helping achieving high data rates with a technique of special multiplexing saves bandwidth but needs efficient receivers with manageable hardware. The receivers employing linear equalizers or Decision Feedback ...

In active networks environments, the data packets can c q active programs to enable specialized processing on them. We quantify the effectiveness of general capsule programs V.S. specialized processing functions for multimedia data through four experiments. These experiments deal with the comparison of Java V.S. C implementation of a MPEG video decoder, the identification of the time-consuming ...

A new type of iterative decoders based on analog computing networks, which are used to decode powerful error-correcting schemes, such as Turbo and Low-density parity-check (LDPC) codes, outperform their digital counterparts in terms of power consumption and speed. Only few analog Turbo decoders, all of them based on CMOS subthreshold technology have been implemented till now. This paper aims to...