Publication

A 2.35mm2 118.3Gbps 5.14pJ/Bit Dual-Mode LDPC Decoder for 5G/6G

2026

Abstract

A dual-mode high-throughput LDPC decoder for 5G/6G is presented. The 2.35mm2 decoder in 16 nm FinFET delivers a peak throughput of 118.3 Gbps with an energy efficiency of 5.14pJ/ bit, supporting up to 10-core parallel 5 G-LDPC decoding as well as spatially-coupled LDPC codes for 6G with code lengths up to 5x of the longest 5G-NR standard codes. Compared with the state-of-the-art, this work achieves 12.4x in peak throughput, 1.7 x in area efficiency, and 2.3 x in energy efficiency. In 6G mode, it further provides up to 1 dB coding gain advantage over 5G-LDPC codes.

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2026

Abstract

Official source

Related concepts (29)

Error correction code

In computing, telecommunication, information theory, and coding theory, forward error correction (FEC) or channel coding is a technique used for controlling errors in data transmission over unreliable or noisy communication channels. The central idea is that the sender encodes the message in a redundant way, most often by using an error correction code or error correcting code (ECC). The redundancy allows the receiver not only to detect errors that may occur anywhere in the message, but often to correct a limited number of errors.

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In telecommunication, a convolutional code is a type of error-correcting code that generates parity symbols via the sliding application of a boolean polynomial function to a data stream. The sliding application represents the 'convolution' of the encoder over the data, which gives rise to the term 'convolutional coding'. The sliding nature of the convolutional codes facilitates trellis decoding using a time-invariant trellis. Time invariant trellis decoding allows convolutional codes to be maximum-likelihood soft-decision decoded with reasonable complexity.

In telecommunications, 5G is the fifth-generation technology standard for broadband cellular networks, which cellular phone companies began deploying worldwide in 2019, and is the planned successor to the 4G networks which provide connectivity to most current cellphones. Like its predecessors, 5G networks are cellular networks, in which the service area is divided into small geographical areas called cells. All 5G wireless devices in a cell are connected to the Internet and telephone network by radio waves through a local antenna in the cell.

Related publications (2)

A 2.35mm2 118.3Gbps 5.14pJ/Bit Dual-Mode LDPC Decoder for 5G/6G

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