Title :
Subcarrier Allocation for Multiuser Two-Way OFDMA Relay Networks with Fairness Constraints
Author :
Shin, Hanmok ; Lee, Jae Hong
Author_Institution :
Dept. of Electr. Eng., Seoul Nat. Univ., Seoul, South Korea
Abstract :
In this paper, we propose a new adaptive subcarrier allocation for a multiuser two-way OFDMA relay network. In the proposed algorithm, subcarriers are allocated to the user-pairs and relays to maximize the achievable sum-rate over all user-pairs while satisfying the minimum rate requirement for each user-pair. Simulation results show that the proposed algorithm improves spectral efficiency and fairness.
Keywords :
OFDM modulation; frequency division multiple access; radio networks; subcarrier multiplexing; adaptive subcarrier allocation; fairness constraints; minimum rate requirement; multiuser two-way OFDMA relay networks; Bandwidth; Degradation; Electronic mail; Fading; Frequency conversion; MIMO; Rayleigh channels; Relays; Resource management; Wireless networks;
Conference_Titel :
Vehicular Technology Conference (VTC 2010-Spring), 2010 IEEE 71st
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-2518-1
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2010.5494017
