Space-time receiver for multi-rate CDMA systems: Multi-code and variable spreading length access methods comparison
Document Type
Conference Proceeding
Publication Date
12-1-1999
Abstract
Linear space-time multiuser detectors are proposed for CDMA systems which support users transmitting at different bit rates. Performance of LMMSE space-time dual-rate receiver is studied in the context of two multi-rate access methods: Multi-code (MC) access where high data rate users multiplex information streams onto multiple codes, and variable spreading length (VSL) access where signature sequences of different lengths are assigned to users with different data rates. Simulation results show that the proposed LMMSE space-time dual-rate receiver can significantly enhance the multi-media services that can be provided by multi-rate CDMA systems, and the VSL access system offers a distinct advantage over MC system.
Identifier
0033296189 (Scopus)
Publication Title
Conference Record IEEE Global Telecommunications Conference
Volume
1
Recommended Citation
Ma, Jinwen and Ge, Hongya, "Space-time receiver for multi-rate CDMA systems: Multi-code and variable spreading length access methods comparison" (1999). Faculty Publications. 15867.
https://digitalcommons.njit.edu/fac_pubs/15867
