Title :
New achievable rates for the Gaussian broadcast channel with feedback
Author :
Gastpar, Michael ; Lapidoth, Amos ; Steinberg, Yossef ; Wigger, Michéle
Author_Institution :
EPF Lausanne, Lausanne, Switzerland
Abstract :
A coding scheme for the two-receivers Gaussian broadcast channel (BC) with feedback is proposed. For some asymmetric settings it achieves new rate pairs. Moreover, it achieves prelog 2 when the noises at the two receivers are fully positively correlated and of unequal variances, thus allowing us to complete the characterization of the prelog of the two-receivers Gaussian BC with feedback. The new achievable rates also allow us to determine the asymptotic power offset when the noises at the two receivers are uncorrelated.
Keywords :
Gaussian channels; broadcast channels; channel coding; feedback; radio receivers; asymptotic power offset; coding scheme; feedback; two-receiver Gaussian BC; two-receiver Gaussian broadcast channel; Correlation; Decoding; Encoding; Noise; Receivers; Transmitters; Vectors;
Conference_Titel :
Wireless Communication Systems (ISWCS), 2011 8th International Symposium on
Conference_Location :
Aachen
Print_ISBN :
978-1-61284-403-9
Electronic_ISBN :
2154-0217
DOI :
10.1109/ISWCS.2011.6125422
