Gigabyte per second streaming lossless data compression hardware based on a configurable variable-geometry CAM dictionary

JL Nunez-Yanez, VA Chouliaras

Research output: Contribution to journalArticle (Academic Journal)peer-review

10 Citations (Scopus)
179 Downloads (Pure)

Abstract

A high-throughput lossless data compression IP core built around a CAM-based dictionary whose number of available entries and data word width adjust to the characteristics of the incoming data stream is presented. These two features enhance model adaptation to the input data, improving compression efficiency, and enable greater throughputs as a multiplicity of bytes can be processed per cycle. A parsing mechanism adjusts the width of dictionary words to natural words while the length of the dictionary grows from an initial empty state to a maximum value defined as a run-time configuration parameter. The compressor/decompressor architecture was prototyped on an FPGA-based PCI board. An ASIC hard-macro was subsequently implemented and achieved a throughput of more than 1 gigabyte per second when clocking at 277 MHz on a high-performance, 0.13 μm, eight-layer copper CMOS process.
Translated title of the contributionGigabyte per second streaming lossless data compression hardware based on a configurable variable-geometry CAM dictionary
Original languageEnglish
Article number20045130
Pages (from-to)47 - 58
Number of pages12
JournalIEE Proceedings - Computers and Digital Techniques
Volume153
Issue number1
DOIs
Publication statusPublished - 10 Jan 2006

Bibliographical note

Publisher: Institute of Electrical and Electronics Engineers (IEEE)

Fingerprint Dive into the research topics of 'Gigabyte per second streaming lossless data compression hardware based on a configurable variable-geometry CAM dictionary'. Together they form a unique fingerprint.

Cite this