TY - GEN
T1 - A frequency-domain oversampling detector for zero-padded MC-CDMA systems
AU - Yan, Yanxin
AU - Gong, Yi
AU - Guan, Yong Liang
PY - 2009
Y1 - 2009
N2 - In conventional cyclic prefix (CP) based multicarrier code-division multiple-access (MC-DMA) systems, the major problem is the multiple-access interference (MAI) caused by frequency-selective fading, near-far effect and frequency offset. In order to eliminate MAI, we propose a linear minimum mean-square error (MMSE) detector for zero-padded (ZP) MC-CDMA systems based on frequency-domain oversampling and MMSE linear combining. The complexity of the detector can be reduced by reducing the oversampling factor according to the specific application. Simulation results show that the proposed detector significantly outperforms the conventional MMSE detector for CP based MC-CDMA in severe MAI environments.
AB - In conventional cyclic prefix (CP) based multicarrier code-division multiple-access (MC-DMA) systems, the major problem is the multiple-access interference (MAI) caused by frequency-selective fading, near-far effect and frequency offset. In order to eliminate MAI, we propose a linear minimum mean-square error (MMSE) detector for zero-padded (ZP) MC-CDMA systems based on frequency-domain oversampling and MMSE linear combining. The complexity of the detector can be reduced by reducing the oversampling factor according to the specific application. Simulation results show that the proposed detector significantly outperforms the conventional MMSE detector for CP based MC-CDMA in severe MAI environments.
KW - Frequency domain oversampling
KW - MMSE detection
KW - Multicarrier CDMA
KW - Zero-padded OFDM
UR - http://www.scopus.com/inward/record.url?scp=77949647318&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77949647318&partnerID=8YFLogxK
U2 - 10.1109/ICICS.2009.5397605
DO - 10.1109/ICICS.2009.5397605
M3 - Conference contribution
AN - SCOPUS:77949647318
SN - 9781424446575
T3 - ICICS 2009 - Conference Proceedings of the 7th International Conference on Information, Communications and Signal Processing
BT - ICICS 2009 - Conference Proceedings of the 7th International Conference on Information, Communications and Signal Processing
T2 - 7th International Conference on Information, Communications and Signal Processing, ICICS 2009
Y2 - 8 December 2009 through 10 December 2009
ER -