In search of a 2-dB coding gain
Abstract
A recent code search found a (15,1/5), a (14,1/6), and a (15,1/6) convolutional code which, when concatenated with a 10-bit (1023,959) Reed-Solomon (RS) code, achieves a bit-error rate (BER) of 0.000001 at a bit signal-to-noise ratio (SNR) of 0.50 dB, 0.47 dB and 0.42 B, respectively. All of these three codes outperform the Voyager communication system, our baseline, which achieves a BER of 10.000001 at bit SNR of 2.53 db, by more than 2 dB. The 2 dB coding improvement goal was exceeded.
- Publication:
-
In its The Telecommunications and Data Acquisition Report p 26-33 (SEE N86-14457 05-32
- Pub Date:
- November 1985
- Bibcode:
- 1985tdar.nasa...26Y
- Keywords:
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- Coding;
- Convolution Integrals;
- Deep Space Network;
- Radio Communication;
- Errors;
- Rates (Per Time);
- Signal To Noise Ratios;
- Communications and Radar