Offset QPSK Simultaneous Carrier and Bit-Timing Recovery Scheme<cd0215d.gif>Agile Acquisition over Satellite Communication Channels<cd0215d.gif>

Yoichi MATSUMOTO

Offset QPSK Simultaneous Carrier and Bit-Timing Recovery SchemeAgile Acquisition over Satellite Communication Channels

Yoichi MATSUMOTO

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This paper proposes a new simultaneous carrier and bit-timing recovery (CBR) scheme for offset quadrature phase shift keying (O-QPSK) for agile acquisition over satellite communication channels. The proposed simultaneous CBR scheme employs a preamble shared for the carrier and bit-timing recover, which has a specific bit-pattern designed so that its baseband signal alternates between two adjacent decision points at the symbol rate. Using the preamble, the proposed simultaneous CBR scheme estimates the carrier phase and the bit-timing, simultaneously and independently, by open-loop approach. For comparison, this paper also describes the performance and configuration of a joint carrier and bit-timing recovery scheme, which is expanded for O-QPSK from the one conventionally proposed for QPSK. This paper demonstrates with simulation results that the proposed simultaneous CBR scheme significantly improves the agility of acquisition: a mere 30-symbol preamble is sufficient for low-E_b/N_o channels typical of satellite communication systems. The proposed CBR scheme is also advantageous from the viewpoint of digital implementation: it processes at 2 samples/symbol and eliminates an analog voltage control clock (VCC). The proposed simultaneous CBR scheme is a strong candidate for TDMA systems that require the high data-transmission and frequency utilization efficiency.

Publication: IEICE TRANSACTIONS on Communications Vol.E80-B No.1 pp.16-24

Publication Date: 1997/01/25

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Type of Manuscript: Special Section PAPER (Special Issue on Advances in Satellite Communications toward Multimedia Era)

Category: Modem and Coding

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Yoichi MATSUMOTO, "Offset QPSK Simultaneous Carrier and Bit-Timing Recovery SchemeAgile Acquisition over Satellite Communication Channels" in IEICE TRANSACTIONS on Communications, vol. E80-B, no. 1, pp. 16-24, January 1997, doi: .
Abstract: This paper proposes a new simultaneous carrier and bit-timing recovery (CBR) scheme for offset quadrature phase shift keying (O-QPSK) for agile acquisition over satellite communication channels. The proposed simultaneous CBR scheme employs a preamble shared for the carrier and bit-timing recover, which has a specific bit-pattern designed so that its baseband signal alternates between two adjacent decision points at the symbol rate. Using the preamble, the proposed simultaneous CBR scheme estimates the carrier phase and the bit-timing, simultaneously and independently, by open-loop approach. For comparison, this paper also describes the performance and configuration of a joint carrier and bit-timing recovery scheme, which is expanded for O-QPSK from the one conventionally proposed for QPSK. This paper demonstrates with simulation results that the proposed simultaneous CBR scheme significantly improves the agility of acquisition: a mere 30-symbol preamble is sufficient for low-E_b/N_o channels typical of satellite communication systems. The proposed CBR scheme is also advantageous from the viewpoint of digital implementation: it processes at 2 samples/symbol and eliminates an analog voltage control clock (VCC). The proposed simultaneous CBR scheme is a strong candidate for TDMA systems that require the high data-transmission and frequency utilization efficiency.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e80-b_1_16/_p

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@ARTICLE{e80-b_1_16,
author={Yoichi MATSUMOTO, },
journal={IEICE TRANSACTIONS on Communications},
title={Offset QPSK Simultaneous Carrier and Bit-Timing Recovery SchemeAgile Acquisition over Satellite Communication Channels},
year={1997},
volume={E80-B},
number={1},
pages={16-24},
abstract={This paper proposes a new simultaneous carrier and bit-timing recovery (CBR) scheme for offset quadrature phase shift keying (O-QPSK) for agile acquisition over satellite communication channels. The proposed simultaneous CBR scheme employs a preamble shared for the carrier and bit-timing recover, which has a specific bit-pattern designed so that its baseband signal alternates between two adjacent decision points at the symbol rate. Using the preamble, the proposed simultaneous CBR scheme estimates the carrier phase and the bit-timing, simultaneously and independently, by open-loop approach. For comparison, this paper also describes the performance and configuration of a joint carrier and bit-timing recovery scheme, which is expanded for O-QPSK from the one conventionally proposed for QPSK. This paper demonstrates with simulation results that the proposed simultaneous CBR scheme significantly improves the agility of acquisition: a mere 30-symbol preamble is sufficient for low-E_b/N_o channels typical of satellite communication systems. The proposed CBR scheme is also advantageous from the viewpoint of digital implementation: it processes at 2 samples/symbol and eliminates an analog voltage control clock (VCC). The proposed simultaneous CBR scheme is a strong candidate for TDMA systems that require the high data-transmission and frequency utilization efficiency.},
keywords={},
doi={},
ISSN={},
month={January},}

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TY - JOUR
TI - Offset QPSK Simultaneous Carrier and Bit-Timing Recovery SchemeAgile Acquisition over Satellite Communication Channels
T2 - IEICE TRANSACTIONS on Communications
SP - 16
EP - 24
AU - Yoichi MATSUMOTO
PY - 1997
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E80-B
IS - 1
JA - IEICE TRANSACTIONS on Communications
Y1 - January 1997
AB - This paper proposes a new simultaneous carrier and bit-timing recovery (CBR) scheme for offset quadrature phase shift keying (O-QPSK) for agile acquisition over satellite communication channels. The proposed simultaneous CBR scheme employs a preamble shared for the carrier and bit-timing recover, which has a specific bit-pattern designed so that its baseband signal alternates between two adjacent decision points at the symbol rate. Using the preamble, the proposed simultaneous CBR scheme estimates the carrier phase and the bit-timing, simultaneously and independently, by open-loop approach. For comparison, this paper also describes the performance and configuration of a joint carrier and bit-timing recovery scheme, which is expanded for O-QPSK from the one conventionally proposed for QPSK. This paper demonstrates with simulation results that the proposed simultaneous CBR scheme significantly improves the agility of acquisition: a mere 30-symbol preamble is sufficient for low-E_b/N_o channels typical of satellite communication systems. The proposed CBR scheme is also advantageous from the viewpoint of digital implementation: it processes at 2 samples/symbol and eliminates an analog voltage control clock (VCC). The proposed simultaneous CBR scheme is a strong candidate for TDMA systems that require the high data-transmission and frequency utilization efficiency.
ER -