Impulse Radio Ultra-wideband (IR-UWB) system employing the short pulse has the tolerable characteristics for the multipath environment. The corresponding transceiver with low power consumption can be simply implemented. On the other hand, in the receiver side, the precise channel estimation is required for the knowledge of essence in channel due to the short period of pulse. The estimated gains and delays in channel are used in the rake receiver. The resulting parameters we search have a strong influence on the performance in the entire system. We introduce that the essential parameters can be obtained more precisely through the preamble in receiver side for the channel estimation and related technologies are presented.
[1]
Moe Z. Win,et al.
Impulse radio: how it works
,
1998,
IEEE Communications Letters.
[2]
Andreas F. Molisch,et al.
Ultra-Wide-Band Propagation Channels
,
2009,
Proceedings of the IEEE.
[3]
A.A.M. Saleh,et al.
A Statistical Model for Indoor Multipath Propagation
,
1987,
IEEE J. Sel. Areas Commun..
[4]
KyungHi Chang,et al.
Preamble-based Successive Cancellation Scheme for the Channel Estimation in the DS-UWB System
,
2007,
IEEE Transactions on Consumer Electronics.
[5]
Umberto Mengali,et al.
Channel estimation for ultra-wideband communications
,
2002,
IEEE J. Sel. Areas Commun..