Title :
Acquisition for a transmitted reference UWB receiver
Author :
Schranzhofer, Andreas ; Wang, Yiyin ; Van der Veen, Alle-Jan
Author_Institution :
Comput. Eng. & Networks Lab., Swiss Fed. Inst. of Technol., Zurich
Abstract :
An acquisition algorithm for a transmitted reference (TR) ultra wideband (UWB) receiver is developed that uses the statistical properties of TR-UWB signals to distinguish between noise and data, achieve acquisition and ignores or decodes the incoming samples accordingly. Unknown parameters, like noise power and arriving time, are estimated and continuously updated once new data is acquired, enabling the receiver to adapt to changing environments. The acquisition is a detection problem with unknown arriving time and noise power. It is split into two steps, chip level and symbol level acquisition. Only segments that pass the first step are considered for the second step. This approach reduces the computational complexity and the implementationspsila resource demands.
Keywords :
computational complexity; radio receivers; signal detection; statistical analysis; ultra wideband communication; acquisition algorithm; chip level acquisition; computational complexity; detection problem; statistical properties; symbol level acquisition; transmitted reference UWB receiver; ultra wideband receiver; AWGN; Additive white noise; Computer networks; Convolution; Data models; Delay; Gaussian noise; Pulse modulation; Ultra wideband technology; Working environment noise;
Conference_Titel :
Ultra-Wideband, 2008. ICUWB 2008. IEEE International Conference on
Conference_Location :
Hannover
Print_ISBN :
978-1-4244-2216-6
Electronic_ISBN :
978-1-4244-1827-5
DOI :
10.1109/ICUWB.2008.4653373