TY - GEN
T1 - Iterative joint MMSE spatial filtering/successive MUI cancellation for frequency-domain filtered SC-FDMA uplink
AU - Okuyama, Suguru
AU - Takeda, Kazuki
AU - Adachi, Fumiyuki
PY - 2010
Y1 - 2010
N2 - Frequency-domain filtered single carrier (SC)-FDMA signal has properties of reduced peak-to-average power ratio (PAPR) and increased frequency diversity gain. However, if the carrier-frequency separation is kept the same as in the case of the transmit filter roll-off factor α=0, the adjacent users' signal spectra overlap and the multi-user interference (MUI) is produced. In our previous work, we proposed an iterative joint single-user minimum mean square error frequency-domain equalization/successive MUI cancellation (called iterative joint MMSE-FDE/SMUIC), which performs iteratively a series of MMSE-FDE, spectrum combining, and SMUIC, for frequency-domain filtered SC-FDMA uplink. However, the residual ISI and MUI limit the BER performance improvement. In this paper, we replace the single-user MMSEFDE by an MMSE spatial filtering (MMSE-SF) and propose an iterative joint multi-user MMSE-SF/SMUIC (called iterative joint MMSE-SF/SMUIC). The achievable bit error rate (BER) and throughput performances are evaluated by computer simulation.
AB - Frequency-domain filtered single carrier (SC)-FDMA signal has properties of reduced peak-to-average power ratio (PAPR) and increased frequency diversity gain. However, if the carrier-frequency separation is kept the same as in the case of the transmit filter roll-off factor α=0, the adjacent users' signal spectra overlap and the multi-user interference (MUI) is produced. In our previous work, we proposed an iterative joint single-user minimum mean square error frequency-domain equalization/successive MUI cancellation (called iterative joint MMSE-FDE/SMUIC), which performs iteratively a series of MMSE-FDE, spectrum combining, and SMUIC, for frequency-domain filtered SC-FDMA uplink. However, the residual ISI and MUI limit the BER performance improvement. In this paper, we replace the single-user MMSEFDE by an MMSE spatial filtering (MMSE-SF) and propose an iterative joint multi-user MMSE-SF/SMUIC (called iterative joint MMSE-SF/SMUIC). The achievable bit error rate (BER) and throughput performances are evaluated by computer simulation.
KW - Frequency-domain filter
KW - Iterative MUI cancellation
KW - MMSE spatial filtering
KW - SC-FDMA
UR - http://www.scopus.com/inward/record.url?scp=79851485820&partnerID=8YFLogxK
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U2 - 10.1109/ICCS.2010.5686460
DO - 10.1109/ICCS.2010.5686460
M3 - Conference contribution
AN - SCOPUS:79851485820
SN - 9781424470068
T3 - 12th IEEE International Conference on Communication Systems 2010, ICCS 2010
SP - 321
EP - 325
BT - 12th IEEE International Conference on Communication Systems 2010, ICCS 2010
T2 - 12th IEEE International Conference on Communication Systems 2010, ICCS 2010
Y2 - 17 November 2010 through 19 November 2010
ER -