140 Mbit/s 32QAM交叉极化共频试验结果

[Conference Record] SUPERCOMM/ICC '92 Discovering a New World of Communications Pub Date : 1992-06-14 DOI:10.1109/ICC.1992.267993

U. Casiraghi, L. Saini, P. Vitali

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引用次数: 1

摘要

频率复用技术可以使数字无线电系统的容量(位/赫兹)翻倍。新开发的140 mb /s 32QAM(正交调幅)Telettra调制解调器配备了一个交叉极干扰消除器(XPIC)，已经在意大利北部的60公里4 ghz链路上成功测试。作者介绍了1991年8月至12月期间观测到的主要结果。在相同条件下，2*140 Mb/s 32QAM系统的性能与1*140 Mb/s 16QAM系统的性能相当。XPIC在降低停电概率和同步恢复速度方面的良好性能表明了设计和施工技术的合理性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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140 Mbit/s 32QAM cross-polarized co-frequency trial results

The frequency reuse technique can be adopted for doubling the capacity (bits/hertz) of digital radio systems. The newly developed 140-Mb/s 32QAM (quadrature amplitude modulation) Telettra modems equipped with a cross polar interference canceller (XPIC) have been tested successfully on a 60-km 4-GHz link in the north of Italy. The authors present the main results observed during the period of August-December 1991. The performance of a 2*140 Mb/s 32QAM system is comparable to that of a 1*140 Mb/s 16QAM system in the same conditions. The good XPIC performance in terms of outage probability reduction and sync-recovering speed shows the soundness of design and construction technologies.<>

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[Conference Record] SUPERCOMM/ICC '92 Discovering a New World of Communications

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