2015•Unpublished venueRequires access
An Overview of CDMA Correlation Techniques In 3G Systems
S. Chitra
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Abstract
Code Division Multiple Access (CDMA) technology was chosen for the air interface of the upcoming third generation wireless systems (3G). In this paper defined an overview of CDMA correlation techniques in 3G systems. Different CDMA systems are introduced and classified as to provide multiple access capability. The basic principles of spread spectrum and wireless communication systems are Multi-Code CDMA. The classical method is Frequency Division Multiple Access and a more recent technique is Time Division Multiple Access. Both techniques assign particular frequency or time slices to different wireless terminals. The most common techniques of CDMA are Frequency hopped CDMA or Direct-sequence CDMA. Spread spectrum techniques are Direct sequence spread spectrum, Time Hopper spread spectrum, and Frequency Hopper spread spectrum and Hybrid