DocumentCode :
3070817
Title :
Virtual MIMO Space Division Multiplexing for MC-CDMA
Author :
Adachi, Koichi ; Adachi, Fumiyuki ; Nakagawa, Masao
Author_Institution :
Grad. Sch. of Sci. & Technol., Keio Univ., Yokohama, Japan
fYear :
2009
fDate :
20-23 Sept. 2009
Firstpage :
1
Lastpage :
5
Abstract :
To increase the data rate without signal bandwidth expansion, a combination of MC system with multiple-input multiple-output (MIMO)-space division multiplexing (SDM) is attractive. MIMO-SDM transmission performance is governed by min {Nt, Nr}, where Nt and Nr are the numbers of transmit and receive antennas, respectively. For downlink transmission, many receive antennas cannot be equipped at a mobile station due to space limitation. Therefore, the achievable data rate is limited by the number of receive antennas. In this paper, we propose a virtual MIMO-SDM for multi-carrier-code division multiple access (MC-CDMA) that can use the signals received via different propagation paths as virtual receive antennas. The equivalent number of receive antennas can be increased by a factor of the number of distinct paths of the channel. We confirm, by computer simulation, the effectiveness of virtual MIMO-SDM in a frequency-selective fading channel.
Keywords :
MIMO communication; code division multiple access; fading channels; space division multiplexing; MC-CDMA; frequency-selective fading channel; phase rotation; receive antennas; virtual MIMO space division multiplexing; Bandwidth; Computer simulation; Downlink; MIMO; Maximum likelihood detection; Multicarrier code division multiple access; Receiving antennas; Signal representations; Space stations; Space technology;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vehicular Technology Conference Fall (VTC 2009-Fall), 2009 IEEE 70th
Conference_Location :
Anchorage, AK
ISSN :
1090-3038
Print_ISBN :
978-1-4244-2514-3
Electronic_ISBN :
1090-3038
Type :
conf
DOI :
10.1109/VETECF.2009.5378989
Filename :
5378989
Link To Document :
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