DocumentCode
2362237
Title
Optimal subchannel assignment in a two-hop OFDM relay
Author
Hottinen, Ari ; Heikkinen, Tiina
Author_Institution
Nokia Group, Espoo
fYear
2007
fDate
17-20 June 2007
Firstpage
1
Lastpage
5
Abstract
The paper studies subchannel assignment in a two-hop OFDM relay system in which the transmitting nodes (source and relay) have access to channel information and interference-related information. We show that with L-superadditive relay (performance) functions a simple ranking of subchannels leads to the optimal assignment with a very low computational complexity. Numerical results quantify the benefit of subchannel assignment in a frequency-selective channel.
Keywords
OFDM modulation; channel allocation; computational complexity; fading channels; optimisation; L-superadditive relay performance functions; channel information; computational complexity; frequency-selective channel; interference-related information; optimal assignment; optimal subchannel assignment; two-hop OFDM relay; Computational complexity; Computer science; Convolution; Finite impulse response filter; Heuristic algorithms; Interference; OFDM; Radio communication; Relays; Transmitters;
fLanguage
English
Publisher
ieee
Conference_Titel
Signal Processing Advances in Wireless Communications, 2007. SPAWC 2007. IEEE 8th Workshop on
Conference_Location
Helsinki
Print_ISBN
978-1-4244-0955-6
Electronic_ISBN
978-1-4244-0955-6
Type
conf
DOI
10.1109/SPAWC.2007.4401425
Filename
4401425
Link To Document