Title :
A rateless coding and modulation scheme for unknown Gaussian channels
Author :
Castura, Jeff ; Mao, Yongyi
Author_Institution :
Univ. of Ottawa, Ottawa
Abstract :
We consider the problem of reliable transmission of information over unknown AWGN channels using rateless codes and non-uniform modulation techniques. We show that Raptor codes and a form of non-uniform, high-order modulation allow for reliable communication at low SNR, with the ability to automatically adapt rate as the SNR increases. Simulation results are presented showing throughput performance and design parameter tradeoffs.
Keywords :
AWGN channels; channel coding; modulation coding; AWGN channel; Raptor code; additive white Gaussian noise; modulation scheme; rateless coding; AWGN channels; Channel capacity; Decoding; Demodulation; Fading; Gaussian channels; Modulation coding; Propagation losses; Throughput; Transmitters;
Conference_Titel :
Information Theory, 2007. CWIT '07. 10th Canadian Workshop on
Conference_Location :
Edmonton, AB
Print_ISBN :
1-4244-0769-9
Electronic_ISBN :
1-4244-0769-9
DOI :
10.1109/CWIT.2007.375722
