Title :
OFDMA capacity analysis and subcarrier allocation in MIMO Channels
Author :
Li, Hongxiang ; Kim, Younsun ; Liu, Hui
Author_Institution :
Dept. of Electr. Eng., Univ. of Washington, Seattle, WA
Abstract :
This paper studies the performance of orthogonal frequency division multiple access (OFDMA) in the multiuser multicarrier MIMO (M3) system for both uplink (UL) and down-link (DL) channels. We numerically quantify the performance gap between OFDMA and the optimal multicarrier solution. We also derive simple but near optimal algorithms to solve the generic OFDMA resource allocation problem in different scenarios.
Keywords :
MIMO communication; OFDM modulation; frequency division multiple access; resource allocation; MIMO Channels; OFDMA capacity analysis; optimal multicarrier solution; orthogonal frequency division multiple access; resource allocation; subcarrier allocation; Bandwidth; Covariance matrix; Downlink; Fading; Frequency conversion; MIMO; Performance analysis; Radio transmitters; Resource management; Tin; MIMO; OFDMA; downlink; uplink;
Conference_Titel :
Wireless Conference, 2008. EW 2008. 14th European
Conference_Location :
Prague
Print_ISBN :
978-3-8007-3102-2
DOI :
10.1109/EW.2008.4623888
