A peak power reduction method with reduced inter-signal interference for OFCDM signal

Naoki Aizawa, Osamu Muta, Yoshihiko Akaiwa

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

2 被引用数 (Scopus)

抄録

A problem with the OFCDM (Orthogonal Frequency and Code Division Multiplexing) system is that PA PR (Peak to Average Power Ratio) of the signal becomes high. In this paper, we propose a novel peak reduction method which suppresses the inter-signal interference caused by peak power limitation for OFCDM signal. In the proposed method, peak power is reduced by adding the peak reducing signal generated with peak components detected by soft-clipping function. At the receiver, the inter-signal interference is compensated by estimating the peak components removed at the transmitter from the received signal. Performance of a total system including modulation, peak-limiter, predistorter, a model of 2GHz class A/B power amplifier and the receiver is investigated by computer simulation. Computer simulation results show the peak power reduction performance is improved about 1.4dB as compared with that of the conventional PRSA (peak reducing signal addition) method.

本文言語英語
ホスト出版物のタイトル2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall
ページ796-800
ページ数5
DOI
出版ステータス出版済み - 12 1 2006
イベント2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall - Montreal, QC, カナダ
継続期間: 9 25 20069 28 2006

その他

その他2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall
Countryカナダ
CityMontreal, QC
Period9/25/069/28/06

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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