Adaptive reference code-based MAI cancellation for DS-CDMA

Abstract

A computationally efficient and practically deployable adaptive reference code-based multiple access interference (MAI) cancellation scheme, in which the conventional transmitter/receiver architecture is minimally modified only at the receiver (and/or transmitter) end, is proposed for direct sequence code division multiple access (DS-CDMA) communication. Upon numerical and theoretical analyses, the proposed communications system is seen to always outperform the existing conventional communications system. The theoretical analyses and results as presented are generally useful and applicable to any situation wherein IS95 pseudo noise (PN) codes are employed towards multiple access. © Copyright 2009 John Wiley & Sons, Ltd.