Information Technology

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Code Division Multiple Access is a form of Direct Sequence Spread Spectrum communications where the channel resources are shared by all the service users. Qualcomm Inc. developed a CDMA based cellular system which was later standardized by the telecommunications industry association (TIA) as an Interim Standard (IS-95). The project aimed at dual-mode operation with already available analog cellular systems. The IS-95 system deploys a 1.25MHz wideband RF channel. Each of the RF channels is share