Title :
Subchannel assignment in OFDM relay nodes
Author :
Hottinen, Ari ; Heikkinen, Tiina
Author_Institution :
Nokia Res. Center
Abstract :
The paper considers a source-relay-destination link in which the relay node is allowed to reassign the input subchannels to different output subchannels. In particular, we consider a channel-aware relay node and compute the subchannel reassignment that optimizes a selected performance criterion. The numerical results suggest that optimized subchannel reassignment is particularly beneficial in frequency-selective channels and in channels where interference information is available at transmitter.
Keywords :
OFDM modulation; channel allocation; telecommunication channels; OFDM relay node; frequency-selective channel; interference information; source-relay-destination link; subchannel assignment; Channel state information; Collaboration; Decoding; Digital video broadcasting; Intelligent networks; Interference; OFDM; Relays; Resource management; Transmitters; Relay networks; resource allocation; scheduling;
Conference_Titel :
Information Sciences and Systems, 2006 40th Annual Conference on
Conference_Location :
Princeton, NJ
Print_ISBN :
1-4244-0349-9
Electronic_ISBN :
1-4244-0350-2
DOI :
10.1109/CISS.2006.286667
