CDMA in signal encryption and information security

Code-division multiple-access (CDMA) is a communication technique that was developed originally for the military because of its jam-resistant properties. It is one of the early forms of jam-resistant, signal encryption techniques used in military applications for the purpose of wireless signal transmission and information-hiding from adversaries. In recent years, CDMA has also played a key role in mobile telephony as a multiple-access technique because of certain properties that make it suitable for commercial and civilian applications. This paper gives a brief exposition on CDMA as a signal encryption technique, and the position that it occupies in future wireless technology. This paper also compares CDMA technology with a relatively recent technique, interleave-division multiple-access (IDMA) that has been attracting significant attention in wireless circles.

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