ADVANCED MODULATION TECHNIQUES FOR V-FAST

被引：20

作者：

EYUBOGLU, MV

FORNEY, GD

PING, D

LONG, GZ

机构：

[1] Motorola Codex Corporation, Mansfield, Massachusetts, 02048

来源：

EUROPEAN TRANSACTIONS ON TELECOMMUNICATIONS | 1993年 / 4卷 / 03期

关键词：

D O I：

10.1002/ett.4460040305

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

An overview is provided of the modulation techniques that are being considered for a new voiceband modem Recommendation, nicknamed V.fast. These techniques include adaptive bandwidth operation for automatically selecting the transmission band, multi-dimensional trollis coded modulation for higher coding gain, constellation shaping for higher shaping gain, precoding and pre-emphasis for advanced equalization, and warping for resistance against signal-dependent impairments. Simulation results are presented to illustrate performance. By adaptively selecting an appropriate combination of these modulation techniques based on line conditions, V.fast modems are expected to double the maximum data rate of standard modems.

引用

页码：243 / 256

页数：14

共 37 条

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