Adaptive filter theory (3rd ed.)
Adaptive filter theory (3rd ed.)
Signal Processing Applications in CDMA Communications
Signal Processing Applications in CDMA Communications
Channel estimation for multicarrier CDMA
ICASSP '00 Proceedings of the Acoustics, Speech, and Signal Processing, 2000. on IEEE International Conference - Volume 05
Direct blind multiuser detection for CDMA in multipath withoutchannel estimation
IEEE Transactions on Signal Processing
IEEE Communications Magazine
MMSE detection of multicarrier CDMA
IEEE Journal on Selected Areas in Communications
| Hi-index | 0.00 |
Multicarrier (MC) CDMA systems have been developed and rapidly gained popularity as they capitalize on both MCM (multicarrier modulation)'s resilience to multi-path fading and direct-sequence (DS) CDMA's simplicity in multi-access and synchronization design to mitigate both multiple access interference (MAI) and the inter-symbol interference (ISI) caused by time dispersive channels with the aid of cyclic prefix (CP). Nevertheless, the elimination of ISI in the MC-CDMA communications systems is at the cost of significant loss in bandwidth efficiency. Additionally, due to the time varying nature of the multipath channel, the training sequence needs to be transmitted periodically, causing further loss of channel throughput. Therefore, blind channel estimation methods which avoid the use of training sequence or even the CP are more attractive due to the increasing demand for high-bit-rate transmission. In this paper, a blind linear prediction based multiuser detection method which avoids the use of CP is proposed for MC-CDMA communications systems. Compared with some existing blind methods, our newly proposed method has better performance. Computer simulations are presented to verify its effectiveness.