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High data rates, low power consumption and low complexity are the most important parameters in the design of the next generation mobile terminals. In this thesis we are introducing a new paradigm in the design of a direct sequence (DS) spread spectrum (SS) receiver by combining analog and digital signal processing. The main difference with respect to the conventional all-digital SS receiver design approach is that the proposed mixed analog/digital processing results in a symbol rate sampling rather than the high rate sub-chip sampling.
The analog signal despreading is a key part of the
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Produktbeschreibung
High data rates, low power consumption and low
complexity are the most important parameters in the
design of the next generation mobile terminals. In
this thesis we are introducing a new paradigm
in the design of a direct sequence (DS) spread
spectrum (SS) receiver by combining analog and
digital signal processing. The main difference with
respect to the conventional all-digital SS receiver
design approach is that the proposed mixed
analog/digital processing results in a symbol rate
sampling rather than the high rate sub-chip sampling.

The analog signal despreading is a key part of the
proposed receiver solution. The potential advantages
of analog despreading are reduced power consumption
and low receiver complexity. Also, the proposed
receiver solution allows very high chip rates (very
high signal bandwidth). The solution is based on a
five port device, a passive RF square law type of
device. It is used to perform two important tasks at
the same time, namely, the direct conversion
and the analog despreading.
Autorenporträt
Ivo Maljevic has received the Ph.D. degree from the University of Toronto in 2004. His research interests include CDMA, WiMax systems, and signal processing. Elvino S. Sousa is with the department of Electrical and Computer Engineering at the University of Toronto. Since 1996 he has also been the chair of the Communications Group.