Coarse time synchronisation for DVB-T2

Doblado, J.G.; Baena, V.; Oria, Ana Cinta Oria; Pérez-Calderón, Darío; López, P.

doi:10.1049/el.2010.0807

Cited by 23 publications

(15 citation statements)

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“…Instead, the symbol is repeated, with the repeated symbol split in two parts and separate frequency shifts applied to each part as shown in Fig.4. The structure of the P1 symbol allows for a robust symbol detection and might be used for a coarse time synchronization of the received T2 signal [18], [19]. The P1 symbol can be detected even at about -6dB C/N (Carrier to Noise ratio) values [20].…”

Section: F Signalingmentioning

confidence: 99%

DVB-T2: The Second Generation of Terrestrial Digital Video Broadcasting System

Eizmendi

Vélez

Gómez-Barquero

et al. 2014

IEEE Trans. on Broadcast.

160

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Abstract-This paper provides a review of the second generation of Terrestrial Digital Video Broadcasting standard DVB-T2. DVB-T2 is the evolution of DVB-T and, together with DVB-S2 and DVB-C2, inaugurated a new transition from the first generation digital broadcasting systems, similar to the transition from analog to digital systems. In the paper the most relevant features of DVB-T2 are explained in detail, along with their benefits and trade-offs.The paper also presents a comprehensive review of the laboratory and field trial results available so far. Especial emphasis is placed in the results of the measurements carried out to test the mobile reception and the novel technologies as Multiple Input Single Output (MISO) and Time Frequency Slicing (TFS).

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Section: F Signalingmentioning

confidence: 99%

DVB-T2: The Second Generation of Terrestrial Digital Video Broadcasting System

Eizmendi

Vélez

Gómez-Barquero

et al. 2014

IEEE Trans. on Broadcast.

160

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“…This limits the possibility of false detection of P1, when the frame is not captured at its beginning. It is worth noting that in [6], similar work was delivered independently based on modifying the implementation guideline circuit. This modification is used to produce a modified P1 detection circuit with linear decaying rate around the maximum peak.…”

Section: Coarse Time Synchronizationmentioning

confidence: 99%

Improved synchronization, channel estimation, and simplified LDPC decoding for the physical layer of the DVB-T2 receiver

Sayed¹,

Elsabrouty

Shalash

2013

J Wireless Com Network

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The newly developed 2nd generation standard for digital video broadcasting (DVB-T2) emerges as a significant upgrade over its first generation predecessor DVB-T. The DVB-T2 standard targets an increased system throughput by at least 30% over the DVB-T. This article introduces algorithms in the signal processing chain to improve the mobile operation for DVB-T2. The proposed modified synchronization blocks, along with the improved channel estimation, show significant improvement compared to the results reported in the DVB-T2 implementation guide. In addition, state-of-the-art low-complexity algorithms in the bit processing chain, particularly in the LDPC decoder, are used to provide robustness and support throughput increase, while reducing the implementation complexity. The integrated system is simulated including implementation effects. The simulation results confirm the enhanced performance of the developed integrated model and provide better results compared to those reported in literature.

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“…At the receiver, both timing and fractional CFO estimation may be achieved by the modified GIC method based on the C-A-B structure [12]. After the fractional CFO is compensated, part "A" of the P1 symbol is extracted and transformed to the FD for integer CFO estimation and signaling detection.…”

Section: Detection Of the P1 Symbolmentioning

confidence: 99%

“…In the receiver, the GIC method in [12] is applied for timing and fractional CFO estimation. Afterwards, the TD part "A" is extracted from the preamble and converted to the FD by the N -point FFT operation, yielding…”

Section: B Detection Of the Proposed Preamblementioning

confidence: 99%

“…Unlike conventional preambles, which are designed merely for supporting timing and frequency synchronization [10], [11], the P1 symbol also supports the basic transmission parameter signaling (TPS), including the FFT size and the SISO/MISO mode [5]. In the time domain (TD), a novel cyclic extension structure is adopted to improve the peak of the guard interval correlation (GIC) for the sake of improved timing synchronization [12]. In the frequency domain (FD), a length-384 sequence carrying 7-bit signaling is mapped to a distributed subcarrier pattern.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Preamble Design Using Embedded Signaling for OFDM Broadcast Systems Based on Reduced-Complexity Distance Detection

Wang

Yang

et al. 2011

IEEE Trans. Veh. Technol.

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Abstract-The second-generation digital terrestrial television broadcasting standard adopts the so-called P1 symbol as the preamble for initial synchronization. The P1 symbol also carries a number of basic transmission parameters, including the fast Fourier transform size and the single-input/single-output as well as multiple-input/single-output mode, to appropriately configure the receiver for carrying out the subsequent processing. In this paper, an improved preamble design is proposed, where a pair of training sequences is inserted in the frequency domain, and their distance is used for transmission parameter signaling. At the receiver, only a low-complexity correlator is required for the detection of the signaling. Both the coarse carrier frequency offset and the signaling can simultaneously be estimated by detecting the aforementioned correlation. Compared with the standardized P1 symbol, the proposed preamble design significantly reduces the complexity of the receiver while retaining high robustness in frequency-selective fading channels. Furthermore, we demonstrate that the proposed preamble design achieves better signaling performance than the standardized P1 symbol despite reducing the numbers of multiplications and additions by about 40% and 20%, respectively.Index Terms-Orthogonal frequency-division multiplexing (OFDM), preamble, second-generation digital terrestrial television broadcasting standard (DVB-T2), transmission parameter signaling (TPS).

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Coarse time synchronisation for DVB-T2

Cited by 23 publications

References 0 publications

DVB-T2: The Second Generation of Terrestrial Digital Video Broadcasting System

DVB-T2: The Second Generation of Terrestrial Digital Video Broadcasting System

Improved synchronization, channel estimation, and simplified LDPC decoding for the physical layer of the DVB-T2 receiver

Preamble Design Using Embedded Signaling for OFDM Broadcast Systems Based on Reduced-Complexity Distance Detection

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