A TDMA-based physical layer solution for high-rate synchronous CDMA systems.
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2003 IEEE. The wireless industry's demand for higher data rates from cellular CDMA systems, makes the use of higher order modulation (e.g. 16-QAM) a necessity. Unfortunately, the high data rate schemes of the current 3G cellular standards don't work well in wireless channels due to the poor equalization of the highly dense constellations. In this work we look at the performance of a fully-loaded CDMA system when we remove the spreading, if not the scrambling.
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2003 IEEE Wireless Communications and Networking, 2003. WCNC 2003.