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US 7,460,595 B2Granted
System and method for Huffman shaping in a data communication system
AssigneeBroadcom Corporation
InventorsGottfried Ungerboeck, Arthur J. Carlson
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Abstract
In a communication system, Huffman coding techniques are used to obtain shaping gains for an improvement in data transmission rates. More particularly, a novel method of Huffman shaping is described that achieves a shaping gain of greater than 1 dB. The shaping gain results in a higher data rate transmission in a communication system where transmitted power is constrained.
Claims27
A method of transmitting data, comprising:
- inputting data into a transmitter;
- scrambling the inputted data;
- accumulating the scrambled data, the accumulated data forming Huffman codewords;
- mapping the formed Huffman codewords into modulation symbols;
- and
- transmitting, at a constant rate, the modulation symbols from the transmitter.
3 more elements
Dependencies are inferred from the claim text.