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
Surat ini mencadangkan transceiver baharu untuk sistem OFDM berdasarkan Smooth Local Trigonometric Transform (LTT). Dalam transceiver kami, pemancar direalisasikan dengan terlebih dahulu memodulasi data bersiri asal menggunakan pemeta buruj, kemudian memasukkan hasilnya ke dalam modulator LTT songsang. Tidak seperti sistem DFT-OFDM konvensional, yang sentiasa menggunakan fungsi kosinus gulungan sebagai fungsi tetingkapnya, sistem yang dicadangkan tidak memerlukan fungsi tetingkap tambahan atas sebab transformasi LTT termasuk fungsi tetingkap berbentuk loceng dengan sendirinya. Selain itu, setiap simbol LTT-OFDM mempunyai kadar pengecilan yang jauh lebih pantas di luar lebar jalur spektrum dan penumpuan spektrum yang lebih baik. Dalam penerima, data asal dipulihkan dengan menyahmodulasi data yang diterima menggunakan LTT hadapan. Hasil simulasi perbandingan daripada sistem DFT-OFDM konvensional, sistem yang kami cadangkan, dan sistem OFDM berasaskan DCT yang dicadangkan baru-baru ini dibincangkan dari segi kadar ralat bit (BER).
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.
Salinan
Qing CHANG, Yongbo TAN, Wei QI, Dirong CHEN, "A New Transceiver for OFDM Systems Using Smooth Local Trigonometric Transforms" in IEICE TRANSACTIONS on Communications,
vol. E92-B, no. 2, pp. 662-665, February 2009, doi: 10.1587/transcom.E92.B.662.
Abstract: This letter proposes a new transceiver for OFDM systems based on Smooth Local Trigonometric Transform (LTT). In our transceiver, the transmitter is realized by first modulating the original serial data using a constellation mapper, then feeding the results into the inverse LTT modulator. Unlike the conventional DFT-OFDM system, which always uses the roll cosine function as its window function, the proposed system needs no additional window function for the reason that LTT transform includes a bell-shaped window function by itself. Moreover, each LTT-OFDM symbol has a much more rapid attenuation rate outside of the spectral bandwidth and better spectrum convergence. In the receiver, the original data is recovered by demodulating the received data using forward LTT. Comparative simulation results from the conventional DFT-OFDM system, the system we proposed, and the recently proposed DCT based OFDM system are discussed in terms of bit error rate (BER).
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.662/_p
Salinan
@ARTICLE{e92-b_2_662,
author={Qing CHANG, Yongbo TAN, Wei QI, Dirong CHEN, },
journal={IEICE TRANSACTIONS on Communications},
title={A New Transceiver for OFDM Systems Using Smooth Local Trigonometric Transforms},
year={2009},
volume={E92-B},
number={2},
pages={662-665},
abstract={This letter proposes a new transceiver for OFDM systems based on Smooth Local Trigonometric Transform (LTT). In our transceiver, the transmitter is realized by first modulating the original serial data using a constellation mapper, then feeding the results into the inverse LTT modulator. Unlike the conventional DFT-OFDM system, which always uses the roll cosine function as its window function, the proposed system needs no additional window function for the reason that LTT transform includes a bell-shaped window function by itself. Moreover, each LTT-OFDM symbol has a much more rapid attenuation rate outside of the spectral bandwidth and better spectrum convergence. In the receiver, the original data is recovered by demodulating the received data using forward LTT. Comparative simulation results from the conventional DFT-OFDM system, the system we proposed, and the recently proposed DCT based OFDM system are discussed in terms of bit error rate (BER).},
keywords={},
doi={10.1587/transcom.E92.B.662},
ISSN={1745-1345},
month={February},}
Salinan
TY - JOUR
TI - A New Transceiver for OFDM Systems Using Smooth Local Trigonometric Transforms
T2 - IEICE TRANSACTIONS on Communications
SP - 662
EP - 665
AU - Qing CHANG
AU - Yongbo TAN
AU - Wei QI
AU - Dirong CHEN
PY - 2009
DO - 10.1587/transcom.E92.B.662
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E92-B
IS - 2
JA - IEICE TRANSACTIONS on Communications
Y1 - February 2009
AB - This letter proposes a new transceiver for OFDM systems based on Smooth Local Trigonometric Transform (LTT). In our transceiver, the transmitter is realized by first modulating the original serial data using a constellation mapper, then feeding the results into the inverse LTT modulator. Unlike the conventional DFT-OFDM system, which always uses the roll cosine function as its window function, the proposed system needs no additional window function for the reason that LTT transform includes a bell-shaped window function by itself. Moreover, each LTT-OFDM symbol has a much more rapid attenuation rate outside of the spectral bandwidth and better spectrum convergence. In the receiver, the original data is recovered by demodulating the received data using forward LTT. Comparative simulation results from the conventional DFT-OFDM system, the system we proposed, and the recently proposed DCT based OFDM system are discussed in terms of bit error rate (BER).
ER -