Performance evaluations of channel estimations in IEEE 802.11p environments

Lin, Chi-Sheng; Sun, Che-Kang; Lin, Jia-Chin; Chen, Bo–Chiuan

doi:10.1007/s11235-011-9480-x

Cited by 15 publications

(12 citation statements)

References 7 publications

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“…These data-aided OFDMs (DA-OFDMs) are practical and also popularly employed in consumer products, such as in the Chinese digital terrestrial multimedia broadcast system transmission standard [10]. Our prior work has also applied these techniques to mobile OFDM communications [11,12]. All of these previous studies employed pseudo-random sequences to perform TD CE.…”

Section: Issues and Related Workmentioning

confidence: 99%

“…All of these previous studies employed pseudo-random sequences to perform TD CE. In addition, a TD CE method has been investigated for the application of the PRP-OFDM technique to the IEEE 802.11p applications [11,12].…”

Section: Issues and Related Workmentioning

confidence: 99%

“…This scheme could reduce the inaccuracy of linear interpolation. The proposed CE method is based on our previous research [11,12]. The main idea of our proposed method is TD CE, which is used to analyse the received training sequence to obtain the channel impulse response (CIR).…”

Section: Channel Estimationmentioning

confidence: 99%

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Physical‐layer transceiving techniques on data‐aided orthogonal frequency‐division multiplexing towards seamless service on vehicular communications

Lin

2013

IET Communications

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Frequency error, non-ideal channel estimation (CE) and inefficient seamless road side unit (RSU) service are critical issues occurring in conventional systems that are completely specified by current IEEE 802.11p standards. This study investigates novel techniques for achieving accurate frequency offset compensation and effective CE and RSU selection for handover in signal-overlapping areas. Recently, communications using data-aided orthogonal frequency-division multiplexing (DA-OFDM), such as pseudo-random-postfix OFDM and time-domain-synchronous OFDM (TDS-OFDM), have been actively studied because of their higher effectiveness, efficiency and better transmission quality. This study consists of three parts: (i) derivation of the maximum likelihood estimation for DA-OFDM, (ii) design of an accurate RSU selection scheme and (iii) implementation of a superior TD CE technique. Performance comparisons between the conventional and the proposed techniques are conducted through comprehensive computer simulations.

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Section: Issues and Related Workmentioning

confidence: 99%

Section: Issues and Related Workmentioning

confidence: 99%

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Physical‐layer transceiving techniques on data‐aided orthogonal frequency‐division multiplexing towards seamless service on vehicular communications

Lin

2013

IET Communications

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“…To enhance channel estimation performance in an OFDM communication, the use of Data-aided OFDM (DA-OFDM), such as Pseudo-Random-Postfix OFDM (PRP-OFDM) communication [9] and Time Domain Synchronous-OFDM (TDS-OFDM) communication [10], which arrange pseudo-random sequences into guard intervals, have been proposed. Our prior work has also applied these techniques to mobile OFDM communications [11], [12]. All of these previous studies have employed pseudo-random sequences to perform time-domain channel estimation.…”

Section: Introductionmentioning

confidence: 99%

“…All of these previous studies have employed pseudo-random sequences to perform time-domain channel estimation. In addition, a timedomain channel estimation method has been investigated to apply the PRP-OFDM technique to IEEE 802.11p applications [11], [12]. Meanwhile TDS-OFDM has been proposed for the Chinese Terrestrial Digital Multimedia/Television Broadcasting (DMB-T) system transmission standard in which pseudo noise (PN) sequences are inserted in guard intervals as periodic training sequences.…”

Section: Introductionmentioning

confidence: 99%

Handover in vehicular communication networks

Lin

2011

2011 11th International Conference on ITS Telecommunications

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Novel techniques of Road Side Unit (RSU) selection for handover were investigated in this study. It was determined that there are currently no efficient RSU selection schemes, which is a severe issue for conventional techniques following the current IEEE 802.11p standard. Recently, dataaided OFDM (DA-OFDM), such as Pseudo-Random-Postfix-OFDM (PRP-OFDM) and Time Domain Synchronous-OFDM (TDS-OFDM), have received attention because of their capability for higher effectiveness with better transmission quality. This study derived the maximum likelihood (ML) channel estimation for DA-OFDM and evaluated and compared proposed techniques by computer simulations.Index Terms-IEEE 802.11p, intelligent transportation system (ITS), OFDM, handover

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Recursive Least Squares Channel Estimation for Rapidly Time-Varying Scenarios in IEEE 802.11p

Aggarwal

Gupta

2016

Wireless Pers Commun

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Performance evaluations of channel estimations in IEEE 802.11p environments

Cited by 15 publications

References 7 publications

Physical‐layer transceiving techniques on data‐aided orthogonal frequency‐division multiplexing towards seamless service on vehicular communications

Physical‐layer transceiving techniques on data‐aided orthogonal frequency‐division multiplexing towards seamless service on vehicular communications

Handover in vehicular communication networks

Recursive Least Squares Channel Estimation for Rapidly Time-Varying Scenarios in IEEE 802.11p

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