# Fast Encoding and Decoding of Flexible-Rate and Flexible-Length Polar Codes

## TL;DR

This paper introduces parallel decoding and fast encoding techniques for polar codes, significantly reducing latency and increasing throughput while supporting flexible rates and lengths.

## Contribution

It proposes universal 8-bit and 16-bit parallel decoders and fast encoders for polar codes, enhancing decoding speed and encoder throughput.

## Key findings

- Reduced decoding latency with parallel decoders
- Increased encoder throughput with fast encoders
- Supports flexible-rate and flexible-length polar codes

## Abstract

This work is on fast encoding and decoding of polar codes. We propose and detail 8-bit and 16-bit parallel decoders that can be used to reduce the decoding latency of the successive-cancellation decoder. These decoders are universal and can decode flexible-rate and flexible-length polar codes. We also present fast encoders that can be used to increase the throughput of serially-implemented polar encoders.