Impact of interference suppression techniques on spectrum overlaid systems of TDMA/W-CDMA and N-CDMA/W-CDMA

被引：0
|
作者：
Zhou, J [1 ]
Yamamoto, U [1 ]
Onozato, Y [1 ]
机构：
[1] Gunma Univ, Fac Engn, Dept Comp Sci, Kiryu, Gumma 3768515, Japan
来源：
IEICE TRANSACTIONS ON COMMUNICATIONS | 2001年 / E84B卷 / 03期
关键词：
digital cellular system; cluster size; full rate channels; notch filter; signal clipper;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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 lever 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.
引用
收藏
页码：539 / 549
页数：11
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