Title :
Multiuser MIMO-OFDM with Adaptive Antenna and Subcarrier Allocation
Author :
Hu, Yang ; Yin, Changchuan ; Yue, Guangxin
Author_Institution :
Beijing Univ. of Posts & Telecommun.
Abstract :
Subcarrier allocation schemes for SISO-OFDM systems in multiuser downlink scenario is well-documented. In this paper, with the goal of maximizing channel capacity, we extend it to MIMO-OFDM systems and propose a novel resource scheduling scheme with dynamic antenna and subcarrier allocation. This is done by maximizing the number of equivalent parallel subchannels in space-frequency structure and corresponding channel fading coefficients in frequency domain. The results show that our proposed algorithm outperforms multiuser MIMO-OFDM systems with static time-division multiple access (TDMA) technique which employ fixed and predetermined time-slot allocation scheme
Keywords :
MIMO systems; OFDM modulation; adaptive antenna arrays; channel capacity; fading channels; scheduling; TDMA technique; adaptive antenna; channel capacity; channel fading coefficients; dynamic antenna; multiple input multiple output system; multiuser MIMO-OFDM systems; orthogonal frequency division multiplexing; resource scheduling scheme; space-frequency structure; static time-division multiple access technique; subcarrier allocation schemes; time-slot allocation scheme; Adaptive arrays; Base stations; Channel capacity; Downlink; MIMO; OFDM; Optimal scheduling; Receiving antennas; Resource management; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference, 2006. VTC 2006-Spring. IEEE 63rd
Conference_Location :
Melbourne, Vic.
Print_ISBN :
0-7803-9391-0
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2006.1683393
