Open AccessArea and energy efficient 802.11ad LDPC decoding processor
Author(s) -
Li Meng,
Lee Youngjoo,
Huang Yanxiang,
Van der Perre Liesbet
Publication year - 2015
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2014.4263
Subject(s) - decoding methods , low density parity check code , computer science , energy (signal processing) , electronic engineering , parallel computing , computer architecture , algorithm , engineering , mathematics , statistics
The design of multi‐Gbit/s low‐density parity‐check code (LDPC) decoders has become a hot topic in recent years to meet the growing demand of the transformation towards 4G. An area and energy efficient multi‐Gbit/s LDPC decoder engine with a fully paralleled layered architecture based on an application‐specific instruction set processor (ASIP) using Synopsys IP designer is presented. When the ASIP core is instantiated for 802.11ad, it achieved a throughput of up to 7 Gbit/s at three iterations with a latency of 95 ns, a record energy efficiency of 2.5 pJ/bit/iteration and an area efficiency of 54.5 Gbit/s/sq‐m in CMOS 28 nm technology for the 1/2 rate, showing it to be competitive against published ASIC solutions.