Successive interference cancellation in rake receivers for CDMA signals
Robertson, Ralph C.
MetadataShow full item record
The objective of this thesis is to investigate various techniques of Successive Intracell Interference Cancellation (SIIC) for Wideband-Code Division Multiple Access (W-CDMA). These techniques can improve the performance of CDMA interceptors and enhance the operation of cellular mobile communication systems. The research focuses on the forward link (downlink) where orthogonal covering is employed. We examine three interference cancellation techniques that suppress the intracell multiuser interference. The first method is called subtraction, and the second method is called projection. We also examine a third method, which is a modification of the second method, and we call it modified projection method. Although our receiver seems more complex compared to a conventional Rake receiver, it is shown to be effective in increasing the channel capacity. Independently from the above study, we also demonstrate the performance of Walsh Index Detector (WID). This detector gives us the opportunity to detect the indexes that are being used in W-CDMA signals without prior knowledge of them.
Approved for public release, distribution unlimited
Showing items related by title, author, creator and subject.
Nagashima, M.; Agrawal, B.N. (2012);For a large Adaptive Optics (AO) system such as a large Segmented Mirror Telescope (SMT), it is often difficult, although not impossible, to directly apply common Multi-Input Multi-Output (MIMO) controller design methods ...
Landale, Karen A.F.; Rendon, Rene G.; Hawkins, Timothy G. (Emerald Publishing Limited, 2017-05-03);The purpose of this research is to explore the effects of supplier selection method on key procurement outcomes such as procurement lead time (PLT), supplier performance and buyer team size. Design/methodology/approach Data ...
Localization of wireless communication emitters using Time Difference of Arrival (TDOA) methods in noisy channels Mantis, Spiros D. (Monterey, California. Naval Postgraduate School, 2001-06);The ability to provide position information of wireless emitters comprises a very important communication tool and has extremely valuable applications to military as well as civilian life. GSM is the most popular method ...