차동 직교 위상 편이 변조 방식의 직교주파수 분할다중 기반 단파 대역 통신 시스템

Translated title of the contribution: DQPSK OFDM-Based HF-Band Communication System with Individual Subcarrier

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents a novel HF band differential quadrature phase-shift keying (DQPSK) orthogonal frequency-division multiplexing (OFDM) communication system. The system can deliver 3.6 kbps with a bandwidth of about 3 kHz. In a digital modem, OFDM with 32-point fast Fourier transform is used. In the system, each subcarrier uses DQPSK modulation. Hence, a demodulator does not require carrier phase recovery and symbol timing recovery. And, each subcarrier employs CRC error check code individually. By using CRC code for each subcarrier, bit error caused by multipath fading can be recovered simply.
Translated title of the contributionDQPSK OFDM-Based HF-Band Communication System with Individual Subcarrier
Original languageKorean
Pages (from-to)800-804
Number of pages5
Journal전기전자학회논문지
Volume22
Issue number3
DOIs
StatePublished - Oct 2018

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