TY - GEN
T1 - Frequency-domain eigenbeam-SDM and equalization for high speed data transmissions
AU - Ozaki, Kazuyuki
AU - Nakajima, Akinori
AU - Adachi, Fumiyuki
PY - 2006
Y1 - 2006
N2 - In wireless communications, the channel consists of many resolvable paths with different time delays, resulting in a severely frequency-selective fading channel. The frequency-domain equalization (FDE) can take advantage of the channel selectivity and improve the bit error rate (BER) performance of the single-carrier (SC) transmission. Recently, multi-input multi-output (MIMO) multiplexing is gaining much attention for achieving very high speed data transmissions under limited bandwidth. Eigenbeam space division multiplexing (E-SDM) is known as one of MIMO multiplexing techniques. In this paper, we propose frequency-domain E-SDM for SC transmission. In frequency-domain E-SDM, the orthogonal transmission channels to transmit different data in parallel are constructed at each orthogonal frequency. At a receiver, FDE is used to suppress the ISI. In this paper, for high spectrum efficiency, the transmit power allocation and the adaptive modulation based on the equivalent channel gains after performing FDE are applied. The transmission performance of the frequency-domain E-SDM in a severe frequency-selective Rayleigh fading channel is evaluated by computer simulation.
AB - In wireless communications, the channel consists of many resolvable paths with different time delays, resulting in a severely frequency-selective fading channel. The frequency-domain equalization (FDE) can take advantage of the channel selectivity and improve the bit error rate (BER) performance of the single-carrier (SC) transmission. Recently, multi-input multi-output (MIMO) multiplexing is gaining much attention for achieving very high speed data transmissions under limited bandwidth. Eigenbeam space division multiplexing (E-SDM) is known as one of MIMO multiplexing techniques. In this paper, we propose frequency-domain E-SDM for SC transmission. In frequency-domain E-SDM, the orthogonal transmission channels to transmit different data in parallel are constructed at each orthogonal frequency. At a receiver, FDE is used to suppress the ISI. In this paper, for high spectrum efficiency, the transmit power allocation and the adaptive modulation based on the equivalent channel gains after performing FDE are applied. The transmission performance of the frequency-domain E-SDM in a severe frequency-selective Rayleigh fading channel is evaluated by computer simulation.
KW - E-SDM
KW - MIMO multiplexing
KW - MMSE-FDE
KW - SC transmission
UR - http://www.scopus.com/inward/record.url?scp=34548860102&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34548860102&partnerID=8YFLogxK
U2 - 10.1109/VTCF.2006.333
DO - 10.1109/VTCF.2006.333
M3 - Conference contribution
AN - SCOPUS:34548860102
SN - 1424400635
SN - 9781424400638
T3 - IEEE Vehicular Technology Conference
SP - 1592
EP - 1596
BT - 2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall
T2 - 2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall
Y2 - 25 September 2006 through 28 September 2006
ER -