decoder structures. An encoder and a decoder are designed using Verilog-HDL and are synthesized using a 0.35 µm CMOS standard cell library. Keywords: Low-density parity-check (LDPC), semi-random, hybrid H-matrix, partly parallel structure. Manuscript received Jan. 13, 2005; revised May 12, 2005.

Hardware implementation aspects of highly flexible low-density parity-check (LDPC) encoder and decoder are presented. The paper covers algorithmic and architectural approaches in achieving flexible and yet very efficient LDPC codec solutions in terms of hardware usage efficiency (HUE).

Aug 6, 2014 · Each K bit/symbol user block is mapped (encoded) into an N bit/symbol codeword, where N > K . . . = ... ... ... ... 0 0 ... ⎢ ⎢ ... ... ... Normally, for each erroneous symbol, decoder has to determine that the symbol is in error and find the correct symbol value.

In this context, a novel highly parallel and flexible hardware architecture for the 5G LDPC decoder is proposed, targeting field-programmable gate array (FPGA) devices. The architecture supports frame parallelism to maximize the utilization of the processing units, significantly improving the processing rate.

In this Paper LDPC encoder and decoder architecture for coding 3-bit message vector will be analyzed and also designed using VHDL. 1. Introduction. LDPC codes are invented by Robert Gallger in 1960’s. These codes are neglected for more than thirty years because of hardware complexity at that time.

strategy and a pipelined partially parallel Block-LDPC encoder architecture, and a partially parallel Block-LDPC decoder ar-chitecture. We present the estimation of Block-LDPC coding system implementation key metrics including the throughput and hardware complexity for both encoder and decoder. The good

Mar 23, 2025 · In this article, a new QC-LDPC encoder/decoder architecture is proposed based on parallel vector-matrix computations and a logarithmic likelihood-ratio (LLR) tagging method to alleviate the computational complexity of the QC-LDPC channel encoder/decoder.

Dec 1, 2020 · The paper gives the comprehensive review of LDPC encoder, decoder and its architecture for simulation and implementation. The paper is specially intended for giving an insight of the...

Abstract: This paper presents a high throughput, parallel, scalable and irregular LDPC coding and decoding system hardware implementation that supports twelve combinations of block lengths 648, 1296, 1944 bits and code rates 1/2, 2/3, 3/4, 5/6 based on IEEE 802.11n standard.

An overview of the congurable QC-LDPC decoder ar-chitecture is shown in Fig. 1. The architecture consists of two memories, i.e., one for the Q-values and one for the R-messages, a cyclic shifter (CS), and a pool of node compu-tation units (NCUs). To enable recongurability for different LDPC matrix prototypes, the architecture contains a cong-