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Summary: A Real Time Programmable Encoder for Low Density Parity Check Code
as specified in the IEEE P802.16E1D7 Standard and its
Efficient Implementation on a DSP Processor
Zahid Khan', Tughrul Arslan', Scott MacDougall1
'System Level Integration Group
School of Engineering and Electronics
The University of Edinburgh, Scotland, UK
2Freescale Semiconductor UK Limited
EastKilbride, Glasgow
Scotland, UK
z.khan@ed.ac.uk, Tughrul.Arslan@ee.ed.ac.uk, Scott.MacDougall@freescale.com
Abstract
This paper presents a real time programmable
irregular Low Density Parity Check (LDPC) Encoder
as specified in the IEEE P802.16E/D7 standard. The
encoder is programmable for frame sizes from 576 to
2304 and for five different code rates. H matrix is
efficiently generated and stored for a particular frame
size and code rate. The encoder is implemented on
SC140 Processor and different optimization
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