Realizable ideal D/C and C/D converters for OFDM signals

Ming-Xian Chang, Tsung D. Hsieh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

For real bandlimited periodic signals, the author in [2] derives the realizable ideal D/C converter that is composed of finite number of finite-duration periodic pulses. However, we can not apply the results in [2] for complex bandlimited periodic signals, such as the baseband signals in the orthogonal frequency-division multiplexing (OFDM) system. In this paper, we first derive the realizable ideal D/C converter for the complex baseband signals of the OFDM system. The proposed D/C converter is composed of only finite-number of finite-duration complex periodic pulses, and therefore is realizable within one period of the signal. Based on the orthogonality among the circularly-shifted interpolation pulses, we also propose a realizable ideal C/D converter that could implement the ideal sampling for the OFDM signals. Due to the complex interpolation pulse, the signals in the I- and Q-channels are coupled together in the ideal D/C (or C/D) converter, and we can not decouple the ideal D/C (or C/D) converter into two independent D/C (or C/D) converters in the I- and Q-channels.

Original languageEnglish
Title of host publication2009 IEEE Sarnoff Symposium, SARNOFF 2009 - Conference Proceedings
DOIs
Publication statusPublished - 2009
Event2009 IEEE Sarnoff Symposium, SARNOFF 2009 - Princeton, NJ, United States
Duration: 2009 Mar 302009 Apr 1

Other

Other2009 IEEE Sarnoff Symposium, SARNOFF 2009
CountryUnited States
CityPrinceton, NJ
Period09-03-3009-04-01

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Communication

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