Time diversity decorrelator (TDD); a near-far resistant detector for asynchronous CDMA system
Alkussayer, H. M., Zheng, F.-C., Guo, Y. J. and Barton, S. K. (1996) Time diversity decorrelator (TDD); a near-far resistant detector for asynchronous CDMA system. In: IEEE 46th Vehicular Technology Conference: Mobile Technology for the Human Race, 28 Apr - 1 May 1996, Atlanta, GA, USA, pp. 564-568.
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Official URL: http://dx.doi.org/10.1109/VETEC.1996.503511
Greater attention has been focused on the use of CDMA for future cellular mobile communications. CA near-far resistant detector for asynchronous code-division multiple-access (CDMA) systems operating in additive white Gaussian noise (AWGN) channels is presented. The multiuser interference caused by K users transmitting simultaneously, each with a specific signature sequence, is completely removed at the receiver. The complexity of this detector grows only linearly with the number of users, as compared to the optimum multiuser detector which requires exponential complexity in the number of users. A modified algorithm based on time diversity is described. It performs detection on a bit-by-bit basis and overcomes the complexity of using a sequence detector. The performance of this detector is shown to be superior to that of the conventional receiver.
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