Effects of HPA non linearity on frequency multiplexed OFDM signals

被引：56

作者：

Banelli, P ^{[1
]}

Baruffa, G ^{[1
]}

Cacopardi, S ^{[1
]}

机构：

[1] Univ Perugia, Dept Elect & Informat Engn, I-06125 Perugia, Italy

来源：

IEEE TRANSACTIONS ON BROADCASTING | 2001年 / 47卷 / 02期

关键词：

CABSINET; communication system nonlinearities; DVB-T; non linear distortions; OFDM; predistortion;

D O I：

10.1109/11.948265

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：

The paper analyzes the performance of the downlink channel of a multimedia interactive service system which transmits the desired information by the frequency multiplexing of several OFDM signals compliant with the DVB-T standard. The effects of the nonlinear distortions introduced by a High Power Amplifier on the system performance are evaluated both in terms of the Bit Error Rate (BER) degradation in AWGN channels and of the spectral regrowth. The performance comparison to the case of a single DVB-T signal as well as the benefits of an ideal predistortion is also considered by comparing analytical results to computer simulations.

引用

页码：123 / 136

页数：14

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