The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
다중경로 페이딩 환경에서 효율적인 데이터 전송을 가능하게 하는 적응형 OFDM(Adaptive Modulated Orthogonal Frequency Division Multiplexing) 무선 전송 방식이 새롭게 제안된다. 이 방식은 ETSI-BRAN, ARIB-MMAC 등 표준화된 멀티미디어 모바일 접속 시스템에서 사용될 수 있다. 이는 지연 확산과 반송파 대 잡음 전력 밀도 비율(C/N0). 추정은 표준 OFDM 무선 전송 방식의 프레임에 삽입된 채널 추정 기호를 사용하여 수행됩니다. 컴퓨터 시뮬레이션을 통해 추정 방법을 사용하면 전파 특성을 완벽하게 추정할 때와 유사한 평균 BER이 발생하는 것으로 나타났습니다. 또한, 적응형 OFDM 전송 방식이 BPSK, QPSK 또는 16 QAM 기반인 경우 평균 BER은 BPSK-OFDM만 사용한 경우와 거의 유사하며, 평균 전송률은 1.8배 높다. 컨벌루션 코드를 기반으로 한 오류 수정 코드를 사용하면 BPSK 및 QPSK-OFDM 방식보다 평균 BER이 낮아집니다.
The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.
부
Hiroshi HARADA, Takako YAMAMURA, Yukiyoshi KAMIO, Masayuki FUJISE, "Adaptive Modulated OFDM Radio Transmission Scheme Using a New Channel Estimation Method for Future Broadband Mobile Communication Systems" in IEICE TRANSACTIONS on Communications,
vol. E85-B, no. 12, pp. 2785-2796, December 2002, doi: .
Abstract: An adaptive modulated orthogonal frequency division multiplexing (OFDM) radio transmission scheme that enables efficient data transmission in multipath fading environments is newly proposed. This scheme can be used in standardized multimedia mobile access systems such as ETSI-BRAN, and ARIB-MMAC. It is based on estimating the delay spread and the carrier-to-noise power density ratio (C/N0). The estimation is done using channel estimation symbols that are inserted into the frames of the standard OFDM radio transmission scheme. Computer simulations show that the estimation method results in an average BER close to those when propagation characteristics are perfectly estimated. Furthermore, when the adaptive OFDM transmission scheme is based on BPSK, QPSK or 16 QAM, the average BER is almost close to that when BPSK-OFDM is only used, and the average transmission rate is 1.8 times as high. Using an error-correction code based on convolutional code results in an average BER lower than that with the BPSK- and QPSK-OFDM schemes.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e85-b_12_2785/_p
부
@ARTICLE{e85-b_12_2785,
author={Hiroshi HARADA, Takako YAMAMURA, Yukiyoshi KAMIO, Masayuki FUJISE, },
journal={IEICE TRANSACTIONS on Communications},
title={Adaptive Modulated OFDM Radio Transmission Scheme Using a New Channel Estimation Method for Future Broadband Mobile Communication Systems},
year={2002},
volume={E85-B},
number={12},
pages={2785-2796},
abstract={An adaptive modulated orthogonal frequency division multiplexing (OFDM) radio transmission scheme that enables efficient data transmission in multipath fading environments is newly proposed. This scheme can be used in standardized multimedia mobile access systems such as ETSI-BRAN, and ARIB-MMAC. It is based on estimating the delay spread and the carrier-to-noise power density ratio (C/N0). The estimation is done using channel estimation symbols that are inserted into the frames of the standard OFDM radio transmission scheme. Computer simulations show that the estimation method results in an average BER close to those when propagation characteristics are perfectly estimated. Furthermore, when the adaptive OFDM transmission scheme is based on BPSK, QPSK or 16 QAM, the average BER is almost close to that when BPSK-OFDM is only used, and the average transmission rate is 1.8 times as high. Using an error-correction code based on convolutional code results in an average BER lower than that with the BPSK- and QPSK-OFDM schemes.},
keywords={},
doi={},
ISSN={},
month={December},}
부
TY - JOUR
TI - Adaptive Modulated OFDM Radio Transmission Scheme Using a New Channel Estimation Method for Future Broadband Mobile Communication Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 2785
EP - 2796
AU - Hiroshi HARADA
AU - Takako YAMAMURA
AU - Yukiyoshi KAMIO
AU - Masayuki FUJISE
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E85-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 2002
AB - An adaptive modulated orthogonal frequency division multiplexing (OFDM) radio transmission scheme that enables efficient data transmission in multipath fading environments is newly proposed. This scheme can be used in standardized multimedia mobile access systems such as ETSI-BRAN, and ARIB-MMAC. It is based on estimating the delay spread and the carrier-to-noise power density ratio (C/N0). The estimation is done using channel estimation symbols that are inserted into the frames of the standard OFDM radio transmission scheme. Computer simulations show that the estimation method results in an average BER close to those when propagation characteristics are perfectly estimated. Furthermore, when the adaptive OFDM transmission scheme is based on BPSK, QPSK or 16 QAM, the average BER is almost close to that when BPSK-OFDM is only used, and the average transmission rate is 1.8 times as high. Using an error-correction code based on convolutional code results in an average BER lower than that with the BPSK- and QPSK-OFDM schemes.
ER -