Title :
Convolutional acquisition for UWB-IR pseudo-chaotic time hopping
Author :
Reggiani, Luca ; Maggio, Gian Mario
Author_Institution :
Dip. di Elettronica ed Informazione, Politecnico di Milano, Italy
Abstract :
In the context of UWB (ultra-wideband) impulse radio, one of the crucial challenges remains the initial code acquisition, in the presence of noise and multipath propagation. In this work, we present a novel synchronization strategy exploiting the convolutional nature of the PCTH (pseudo-chaotic time hopping) modulation. Namely, a Markov chain describing the input/output relationship of the PCTH encoding scheme is used for recovering the frame synchronization.
Keywords :
Markov processes; chaotic communication; convolution; multipath channels; signal detection; synchronisation; ultra wideband communication; Markov chain; PCTH; UWB-IR; coarse acquisition algorithm; convolutional acquisition; frame synchronization; initial code acquisition; multipath propagation; pseudo-chaotic time hopping modulation; ultra-wideband impulse radio; Context; Convolution; Convolutional codes; Encoding; Pulse modulation; Radio transmitters; Receivers; Timing; Ultra wideband technology; Wireless communication;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th
Print_ISBN :
0-7803-8521-7
DOI :
10.1109/VETECF.2004.1404863
