TY - GEN
T1 - Cellular MIMO channel capacities of MC-CDMA and OFDM
AU - Adachi, Koichi
AU - Adachi, Fumiyuki
AU - Nakagawa, Masao
PY - 2008
Y1 - 2008
N2 - Multicarrier transmission techniques (i.e., orthogonal frequency division multiplexing (OFDM) and multi-carrier code division multiple access (MC-CDMA)) are the promising candidates for wireless access technique in future cellular communication systems because of their capability to eliminate the multipath interference. Multiple-input multiple-output (MIMO)-space division multiplexing (SDM) can increase the transmission rate without bandwidth expansion. A combination of multi-carrier technique and MIMO is a promising technique. However, the transmission performance of MC-CDMA severely degrades because of the inter-code interference (ICI) arising from the orthogonality distortion owing to the frequency-selective fading. In this paper, we derive the channel capacity formula for MC-CDMA MIMO taking into account the ICI and co-channel interference (CCI) in a cellular environment. Recently, many ICI cancellers have been proposed. The cellular channel capacity of MC-CDMA MIMO with perfect ICI cancellation is numerically evaluated and is compared to that of OFDM MIMO in a cellular environment. The impacts of the frequency-reuse factor and the number of propagation paths are also discussed. The numerical computation results show that the cellular channel capacity of MC-CDMA is larger than that of OFDM.
AB - Multicarrier transmission techniques (i.e., orthogonal frequency division multiplexing (OFDM) and multi-carrier code division multiple access (MC-CDMA)) are the promising candidates for wireless access technique in future cellular communication systems because of their capability to eliminate the multipath interference. Multiple-input multiple-output (MIMO)-space division multiplexing (SDM) can increase the transmission rate without bandwidth expansion. A combination of multi-carrier technique and MIMO is a promising technique. However, the transmission performance of MC-CDMA severely degrades because of the inter-code interference (ICI) arising from the orthogonality distortion owing to the frequency-selective fading. In this paper, we derive the channel capacity formula for MC-CDMA MIMO taking into account the ICI and co-channel interference (CCI) in a cellular environment. Recently, many ICI cancellers have been proposed. The cellular channel capacity of MC-CDMA MIMO with perfect ICI cancellation is numerically evaluated and is compared to that of OFDM MIMO in a cellular environment. The impacts of the frequency-reuse factor and the number of propagation paths are also discussed. The numerical computation results show that the cellular channel capacity of MC-CDMA is larger than that of OFDM.
KW - Link capacity
KW - MIMO
KW - Multi-cell environment
UR - http://www.scopus.com/inward/record.url?scp=47749137856&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=47749137856&partnerID=8YFLogxK
U2 - 10.1109/VETECS.2008.447
DO - 10.1109/VETECS.2008.447
M3 - Conference contribution
AN - SCOPUS:47749137856
SN - 9781424416455
T3 - IEEE Vehicular Technology Conference
SP - 1980
EP - 1984
BT - 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC
T2 - 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC
Y2 - 11 May 2008 through 14 May 2008
ER -