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
Dalam makalah ini kami mencadangkan algoritma pemulihan masa dan fasa baharu untuk mengurangkan kesan gangguan antara simbol (ISI) dan untuk meningkatkan kadar data yang dibenarkan. Kami menggunakan min lebihan kelewatan saluran sebagai masa segera untuk pensampelan tidak kira apa kadar simbol yang dihantar dan menggunakan fasa tindak balas impuls jalur asas kompleks yang disampel pada saat yang sepadan sebagai fasa pembawa untuk pampasan. Purata kelewatan lebihan saluran adalah bebas daripada kadar penghantaran data dan boleh dianggarkan oleh litar pemulihan pemasaan konvensional dengan menghantar jujukan data kadar rendah dengan selang simbol lebih lama daripada penyebaran kelewatan saluran. Kami telah membandingkan prestasi penghantaran secara berangka tanpa dan dengan menggunakan algoritma cadangan kami dalam masa dan pemulihan fasa. Kami juga membandingkan prestasi penghantaran penyama maklum balas keputusan (DFE) apabila input kepada DFE diambil sampel melalui kaedah konvensional dan kaedah cadangan kami. Kami mendapati bahawa skim baharu ini mempunyai prestasi yang lebih baik. Bandingkan dengan kaedah konvensional, kadar data yang dibenarkan dinormalkan pada ambang BER 10-5 dan kebarangkalian gangguan kurang daripada 2% boleh ditingkatkan sebanyak 5 kali ganda. Walaupun skim baharu digunakan bersama DFE, prestasi boleh dipertingkatkan lagi. Keputusan simulasi untuk kedua-dua saluran simulasi dan fizikal telah mengesahkan keberkesanan skim baharu.
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Salinan
Ta-Yung LIU, Hsueh-Jyh LI, "A New Timing and Phase Recovery Algorithm for Dispersive Fading Channels" in IEICE TRANSACTIONS on Communications,
vol. E84-B, no. 2, pp. 172-179, February 2001, doi: .
Abstract: In this paper we propose a new timing and phase recovery algorithm to mitigate the inter-symbol interference (ISI) effect and to increase the permissible data rate. We use the mean excess delay of the channel as the timing instant for sampling no matter what symbol rates are transmitted and use the phase of the complex baseband impulse response sampled at the corresponding instant as the carrier phase for compensation. The mean excess delay of a channel is independent of the data transmission rates and can be estimated by the conventional timing recovery circuit by transmitting a low rate data sequence with symbol interval longer than the channel delay spread. We have numerically compared the transmission performances without and with applying our proposed algorithm in the timing and phase recovery. We also compare the transmission performance of the decision feedback equalizer (DFE) when the inputs to the DFE are sampled by the conventional method and by our proposed method. We found that the new scheme has a better performance. Compare with the conventional method, the normalized permissible data rate at a BER threshold of 10-5 and an outage probability of less than 2% can be increased by 5 times. While the new scheme is employed together with DFE, the performance can be further improved. Simulation results for both simulated and physical channels have verified the effectiveness of the new scheme.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e84-b_2_172/_p
Salinan
@ARTICLE{e84-b_2_172,
author={Ta-Yung LIU, Hsueh-Jyh LI, },
journal={IEICE TRANSACTIONS on Communications},
title={A New Timing and Phase Recovery Algorithm for Dispersive Fading Channels},
year={2001},
volume={E84-B},
number={2},
pages={172-179},
abstract={In this paper we propose a new timing and phase recovery algorithm to mitigate the inter-symbol interference (ISI) effect and to increase the permissible data rate. We use the mean excess delay of the channel as the timing instant for sampling no matter what symbol rates are transmitted and use the phase of the complex baseband impulse response sampled at the corresponding instant as the carrier phase for compensation. The mean excess delay of a channel is independent of the data transmission rates and can be estimated by the conventional timing recovery circuit by transmitting a low rate data sequence with symbol interval longer than the channel delay spread. We have numerically compared the transmission performances without and with applying our proposed algorithm in the timing and phase recovery. We also compare the transmission performance of the decision feedback equalizer (DFE) when the inputs to the DFE are sampled by the conventional method and by our proposed method. We found that the new scheme has a better performance. Compare with the conventional method, the normalized permissible data rate at a BER threshold of 10-5 and an outage probability of less than 2% can be increased by 5 times. While the new scheme is employed together with DFE, the performance can be further improved. Simulation results for both simulated and physical channels have verified the effectiveness of the new scheme.},
keywords={},
doi={},
ISSN={},
month={February},}
Salinan
TY - JOUR
TI - A New Timing and Phase Recovery Algorithm for Dispersive Fading Channels
T2 - IEICE TRANSACTIONS on Communications
SP - 172
EP - 179
AU - Ta-Yung LIU
AU - Hsueh-Jyh LI
PY - 2001
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E84-B
IS - 2
JA - IEICE TRANSACTIONS on Communications
Y1 - February 2001
AB - In this paper we propose a new timing and phase recovery algorithm to mitigate the inter-symbol interference (ISI) effect and to increase the permissible data rate. We use the mean excess delay of the channel as the timing instant for sampling no matter what symbol rates are transmitted and use the phase of the complex baseband impulse response sampled at the corresponding instant as the carrier phase for compensation. The mean excess delay of a channel is independent of the data transmission rates and can be estimated by the conventional timing recovery circuit by transmitting a low rate data sequence with symbol interval longer than the channel delay spread. We have numerically compared the transmission performances without and with applying our proposed algorithm in the timing and phase recovery. We also compare the transmission performance of the decision feedback equalizer (DFE) when the inputs to the DFE are sampled by the conventional method and by our proposed method. We found that the new scheme has a better performance. Compare with the conventional method, the normalized permissible data rate at a BER threshold of 10-5 and an outage probability of less than 2% can be increased by 5 times. While the new scheme is employed together with DFE, the performance can be further improved. Simulation results for both simulated and physical channels have verified the effectiveness of the new scheme.
ER -