Improvements of frequency utilization efficiency and transmitter power by antenna polarization switched CDMA

被引：0
|
作者：
Fujii, T [1 ]
Masui, H [1 ]
机构：
[1] Japan Telecom Co Ltd, Informat & Commun Labs, Tokyo 1040032, Japan
来源：
ELECTRONICS AND COMMUNICATIONS IN JAPAN PART I-COMMUNICATIONS | 2005年 / 88卷 / 06期
关键词：
mobile communication systems; CDMA system; polarized wave; polarization switched CDMA;
D O I：
10.1002/ecja.20162
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：
Portable terminals are usually tilted in the horizontal direction when in use rather than the vertical direction. When we examine this situation, if polarized waves having a large received power are used in communication, the plan is to reduce the transmitter power and improve frequency utilization in mobile communications using Code Division Multiple Access (CDMA). The authors propose a polarization switched CDMA system that communicates by using a polarization-diversity antenna as the base station antenna to switch to the polarized wave with the large received power. In this paper, we analyze the improvements in the frequency utilization and the transmitter power by using the polarization switched CDMA system and explain their effectiveness. (C) 2005 Wiley Periodicals, Inc.
引用
收藏
页码：33 / 46
页数：14
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