This contains the network (UTRAN),
UE, and physical layer introduction. DS-CDMA overview is provided with the North American
spread-spectrum cellular system used as an example. PN code (Maximal Length, Gold, Walsh,
Kasami, and so forth) generation methods and statistical properties are discussed. RAKE receiver
and Generalized RAKE operations such as channel estimation and time tracking are presented. There
is a discussion on the impact of inter-chip interference on the RAKE output, where a new derivation
is presented. Several essential signal processing functions required in spread-spectrum systems are
discussed such as multipath searching, RAKE finger combining, signal-to-interference ratio based
power control (i.e., open, closed inner, and closed outer loop), transport format combination decoding,
and access channel procedures. Simulation results for the link performance of advanced receivers are
provided, as discussed by the 3GPP standard.
Chapter 8 provides a concise treatment of computer simulation techniques that are available to
the system designer. As communication systems evolve and become increasingly complex, deriving
a single, exact, mathematically tractable equation accurately describing system performance is difficult.
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