An interleaver implementation for the serially concatenated pulse-position modulation decoder

被引：0

作者：

Chen, Michael K. ^{[1
]}

Moision, Bruce E. ^{[1
]}

Hamkins, Jon ^{[1
]}

Nakashima, Michael A. ^{[1
]}

机构：

[1] CALTECH, Jet Propuls Lab, Pasadena, CA 91109 USA

来源：

2006 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-11, PROCEEDINGS | 2006年

关键词：

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

We describe novel interleaver and deinterleaver architectures that support bandwidth efficient memory access for decoders of turbo-like codes that are used in conjunction with high order modulations. The presentation focuses on a decoder for serially concatenated pulse-position modulation (SCPPM), which is a forward-error-correction code designed by NASA to support laser communications from Mars at mega-bits-per-second (Mbps) rates. For 64-ary PPM, the new architectures effectively triple the fan-in of the interleaver and fan-out of the deinterleaver, enabling parallelization that doubles the overall throughput. The techniques described here can be readily modified for other PPM orders.

引用

页码：4244 / +

页数：2

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