DocumentCode :
2025493
Title :
Rate Regions for the Partially-Cooperative Relay Broadcast Channel with Non-causal Side Information
Author :
Zaidi, A. ; Vandendorpe, L.
Author_Institution :
Commun. & Remote Sensing Lab., Univ. Catholique de Louvain, Louvain-la-Neuve
fYear :
2007
fDate :
24-29 June 2007
Firstpage :
1246
Lastpage :
1250
Abstract :
In this work, we consider a partially cooperative relay broadcast channel (PC-RBC) controlled by random parameters. We provide rate regions for two different situations: (1) when side information (SI) Sn on the random parameters is non-causally known at both the source and the relay and, (2) when side information Sn is non-causally known at the source only. These achievable regions are derived for the general discrete memoryless case first and then extended to the case when the channel is degraded Gaussian and the SI is additive i.i.d. Gaussian. In this case, the source uses generalized dirty paper coding (GDPC), i.e., DPC combined with partial state cancellation, when only the source is informed, and DPC alone when both the source and the relay are informed. It appears that, even though it can not completely eliminate the effect of the SI (in contrast to the case of source and relay being informed), GDPC is particularly useful when only the source is informed.
Keywords :
Gaussian channels; broadcast channels; channel coding; random processes; Gaussian channel; generalized dirty paper coding; noncausal side information; partially cooperative relay broadcast channel; random parameters; rate regions; Broadcasting; Communication networks; Communication system control; Degradation; Downlink; Gaussian channels; Relays; Remote sensing; Telecommunication network reliability; Tin;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information Theory, 2007. ISIT 2007. IEEE International Symposium on
Conference_Location :
Nice
Print_ISBN :
978-1-4244-1397-3
Type :
conf
DOI :
10.1109/ISIT.2007.4557394
Filename :
4557394
Link To Document :
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