Title :
On Noisy Feedback for Interference Channels
Author :
Gastpar, Michael ; Kramer, Gerhard
Author_Institution :
Dept. of EECS, Univ. of California, Berkeley, CA
fDate :
Oct. 29 2006-Nov. 1 2006
Abstract :
An upper bound is established on the usefulness of noisy feedback for the interference channel (IC). The bound is based on the Hekstra-Willems dependence-balance arguments for two-way channels. For Gaussian ICs, the results suggest that feedback loses its efficacy roughly when the noise variance on the feedback link is larger than on the forward link.
Keywords :
AWGN channels; cochannel interference; Hekstra-Willems dependence-balance arguments; interference channels; noisy feedback; AWGN; Additive white noise; Degradation; Gaussian noise; Integrated circuit noise; Interference channels; Output feedback; Transmitters; Upper bound;
Conference_Titel :
Signals, Systems and Computers, 2006. ACSSC '06. Fortieth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
1-4244-0784-2
Electronic_ISBN :
1058-6393
DOI :
10.1109/ACSSC.2006.356618
