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IEICE TRANSACTIONS on Communications

Impact of Interference Suppression Techniques on Spectrum Overlaid Systems of TDMA/W-CDMA and N-CDMA/W-CDMA

Jie ZHOU, Ushio YAMAMOTO, Yoshikuni ONOZATO

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Summary :

A simplified analysis is presented for the reverse link maximum capacity trade-offs between each layer, spectrum efficiency and its multi-rate features of TDMA/W-CDMA and N-CDMA/W-CDMA overlaid systems with the perfect power control based on the measurement of signal-to-interference ratio (CIR). In order to suppress the multi-cross interference, the other important techniques used in the analysis are the ideal notch filtering and the signal level clipper for W-CDMA system transmitters and receivers. We firstly propose the concepts of the notch filtering depth and signal level clipping depth in the paper. The numerical results can be adopted as a guideline in designing the overlaid systems in the various cases as well as a means to investigate the flexibility of sharing of the spread spectrum and their feasibility in the future mobile communication system.

Publication
IEICE TRANSACTIONS on Communications Vol.E84-B No.3 pp.539-549
Publication Date
2001/03/01
Publicized
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DOI
Type of Manuscript
Special Section PAPER (Special Issue on Innovative Mobile Communication Technologies at the Dawn of the 21st Century)
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