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Journal ArticleDOI

DVB-S2: The Second Generation Standard for Satellite Broad-Band Services

03 Jan 2006-Vol. 94, Iss: 1, pp 210-227
TL;DR: The paper provides a tutorial overview of the DVB-S2 system, describing its main features and performance in various scenarios and applications.
Abstract: DVB-S2 is the second-generation specification for satellite broad-band applications, developed by the Digital Video Broadcasting (DVB) Project in 2003. The system is structured as a toolkit to allow the implementation of the following satellite applications: TV and sound broadcasting, interactivity (i.e., Internet access), and professional services, such as TV contribution links and digital satellite news gathering. It has been specified around three concepts: best transmission performance approaching the Shannon limit, total flexibility, and reasonable receiver complexity. Channel coding and modulation are based on more recent developments by the scientific community: low density parity check codes are adopted, combined with QPSK, 8PSK, 16APSK, and 32APSK modulations for the system to work properly on the nonlinear satellite channel. The framing structure allows for maximum flexibility in a versatile system and also synchronization in worst case configurations (low signal-to-noise ratios). Adaptive coding and modulation, when used in one-to-one links, then allows optimization of the transmission parameters for each individual user,dependant on path conditions. Backward-compatible modes are also available,allowing existing DVB-S integrated receivers-decoders to continue working during the transitional period. The paper provides a tutorial overview of the DVB-S2 system, describing its main features and performance in various scenarios and applications.

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Citations
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Journal ArticleDOI
TL;DR: The preliminary outcomes of extensive research on mmWave massive MIMO are presented and emerging trends together with their respective benefits, challenges, and proposed solutions are highlighted to point out current trends, evolving research issues and future directions on this technology.
Abstract: Several enabling technologies are being explored for the fifth-generation (5G) mobile system era. The aim is to evolve a cellular network that remarkably pushes forward the limits of legacy mobile systems across all dimensions of performance metrics. One dominant technology that consistently features in the list of the 5G enablers is the millimeter-wave (mmWave) massive multiple-input-multiple-output (massive MIMO) system. It shows potentials to significantly raise user throughput, enhance spectral and energy efficiencies and increase the capacity of mobile networks using the joint capabilities of the huge available bandwidth in the mmWave frequency bands and high multiplexing gains achievable with massive antenna arrays. In this survey, we present the preliminary outcomes of extensive research on mmWave massive MIMO (as research on this subject is still in the exploratory phase) and highlight emerging trends together with their respective benefits, challenges, and proposed solutions. The survey spans broad areas in the field of wireless communications, and the objective is to point out current trends, evolving research issues and future directions on mmWave massive MIMO as a technology that will open up new frontiers of services and applications for next-generation cellular networks.

491 citations


Cites background from "DVB-S2: The Second Generation Stand..."

  • ...and inverse FFT (IFFT) operations (implementation-wise) and has low-complexity multiplexing capability for multi-user support [91], [106], [107]....

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Journal ArticleDOI
TL;DR: This review is built on two pillars, namely fixed satellite and mobile satellite, and special attention is given to the characteristics of the satellite channel, which will ultimately determine the viability of MIMO over satellite.
Abstract: The present article carries out a review of MIMO-based techniques that have been recently proposed for satellite communications. Due to the plethora of MIMO interpretations in terrestrial systems and the particularities of satellite communications, this review is built on two pillars, namely fixed satellite and mobile satellite. Special attention is given to the characteristics of the satellite channel, which will ultimately determine the viability of MIMO over satellite. Finally, some future research directions are identified.

315 citations


Cites background from "DVB-S2: The Second Generation Stand..."

  • ...The above two broad cases constitute the main fields of application of the very successful satellite standards recently developed by ETSI, namely the DVB-S2 standard [4], [5] for FS systems and the DVB-SH standard [6], [7] for MS systems....

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Journal ArticleDOI
TL;DR: A generic optimization framework for linear precoding design to handle any objective functions of data rate with general linear and nonlinear power constraints is provided and an iterative algorithm which optimizes the precoding vectors and power allocation alternatingly is proposed and most importantly, the proposed algorithm is proved to always converge.
Abstract: Multibeam satellite systems have been employed to provide interactive broadband services to geographical areas under-served by terrestrial infrastructure. In this context, this paper studies joint multiuser linear precoding design in the forward link of fixed multibeam satellite systems. We provide a generic optimization framework for linear precoding design to handle any objective functions of data rate with general linear and nonlinear power constraints. To achieve this, an iterative algorithm which optimizes the precoding vectors and power allocation alternatingly is proposed and most importantly, the proposed algorithm is proved to always converge. The proposed optimization algorithm is also applicable to nonlinear dirty paper coding. As a special case, a more efficient algorithm is devised to find the optimal solution to the problem of maximizing the proportional fairness among served users. In addition, the aforementioned problems and algorithms are extended to the case that each terminal has multiple co-polarization or dual-polarization antennas. Simulation results demonstrate substantial performance improvement of the proposed schemes over conventional multibeam satellite systems, zero-forcing and regularized zero-forcing precoding schemes in terms of meeting the traffic demand, e.g., using real beam patterns, over twice higher throughput can be achieved compared with the conventional scheme. The performance of the proposed linear precoding scheme is also shown to be very close to the dirty paper coding.

296 citations


Additional excerpts

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Journal ArticleDOI
TL;DR: A novel user pairing scheme is developed so that more than two users can be grouped in a cluster to exploit the NOMA technique and an iterative penalty function-based beamforming scheme is presented to obtain the BF weight vectors and power coefficients with fast convergence.
Abstract: In this paper, we propose a joint optimization design for a non-orthogonal multiple access (NOMA)-based satellite-terrestrial integrated network (STIN), where a satellite multicast communication network shares the millimeter wave spectrum with a cellular network employing NOMA technology. By assuming that the satellite uses multibeam antenna array and the base station employs uniform planar array, we first formulate a constrained optimization problem to maximize the sum rate of the STIN while satisfying the constraint of per-antenna transmit power and quality-of-service requirements of both satellite and cellular users. Since the formulated optimization problem is NP-hard and mathematically intractable, we develop a novel user pairing scheme so that more than two users can be grouped in a cluster to exploit the NOMA technique. Based on the user clustering, we further propose to transform the non-convex problem into an equivalent convex one, and present an iterative penalty function-based beamforming (BF) scheme to obtain the BF weight vectors and power coefficients with fast convergence. Simulation results confirm the effectiveness and superiority of the proposed approach in comparison with the existing works.

273 citations


Cites methods from "DVB-S2: The Second Generation Stand..."

  • ...Here, by using software defined architecture, a gateway (GW) 3 SAT operates as a control center to collect and manage various kinds of information in the whole network, and the perfect channel state information (CSI) is available at the GW [32], which can be realized by feedback/training sent from the user terminals via a return channel, which is already presented in DVB-S2 [33]....

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  • ...Here, by using software defined architecture, a gateway (GW) operates as a control center to collect and manage various kinds of information in the whole network, and the perfect channel state information (CSI) is available at the GW [32], which can be realized by feedback/training sent from the user terminals via a return channel, which was already presented in DVB-S2 [33]....

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Book
15 Oct 2004
TL;DR: An overview of the fields of technology addressed by technical specifications created by the DVB Project (DVB) is presented and a description of the newest areas of development DVB has decided to tackle is described.
Abstract: This paper presents an overview of the fields of technology addressed by technical specifications created by the DVB Project (DVB). It serves as an introduction to the section of the special issue of the Proceedings of the IEEE in which a number of very recent DVB technologies will be explained in detail. The overview starts with an explanation of the wide field of application which the members of the DVB Project decided to address over the years. It then discusses the base band processing required for DVB services and looks into the specifications provided for the broadcasting over cable, satellite, and terrestrial transmitters. The concept of broadcasting generic data is explained and the interaction channels supported by DVB will be introduced. Multimedia Home Platform (MHP) facilitates a horizontal market of receivers able to run software programs (applications in DVB terminology)in a well defined way. After a short introduction into the specifications addressing the delivery of broadcast-type content over broad-band IP networks,the concept of broadcasting to handheld devices is introduced. The paper closes with a description of the newest areas of development DVB has decided to tackle.

261 citations


Cites background from "DVB-S2: The Second Generation Stand..."

  • ...Of the many fascinating areas of technology for which DVB has developed solutions the following will be described in specific papers of this issue: DVB-T—the solution for terrestrial broadcasting [3], DVB-H, a system delivering all sorts of content to battery-powered devices [4]; DVB-S2, the next generation satellite system [5]; DVB-IP, a solution for...

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  • ...Both technologies are described in [5] in this issue....

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References
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Book
01 Jan 1963
TL;DR: A simple but nonoptimum decoding scheme operating directly from the channel a posteriori probabilities is described and the probability of error using this decoder on a binary symmetric channel is shown to decrease at least exponentially with a root of the block length.
Abstract: A low-density parity-check code is a code specified by a parity-check matrix with the following properties: each column contains a small fixed number j \geq 3 of l's and each row contains a small fixed number k > j of l's. The typical minimum distance of these codes increases linearly with block length for a fixed rate and fixed j . When used with maximum likelihood decoding on a sufficiently quiet binary-input symmetric channel, the typical probability of decoding error decreases exponentially with block length for a fixed rate and fixed j . A simple but nonoptimum decoding scheme operating directly from the channel a posteriori probabilities is described. Both the equipment complexity and the data-handling capacity in bits per second of this decoder increase approximately linearly with block length. For j > 3 and a sufficiently low rate, the probability of error using this decoder on a binary symmetric channel is shown to decrease at least exponentially with a root of the block length. Some experimental results show that the actual probability of decoding error is much smaller than this theoretical bound.

11,592 citations


"DVB-S2: The Second Generation Stand..." refers background in this paper

  • ...…at base-band (BB) level, carrying a variety of signaling bits, to configure the receiver flexibly according to the application scenario; — PLFRAME at physical layer (PL) level, carrying few highly protected signaling bits, to provide robust synchronization and signaling at the physical layer....

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Journal ArticleDOI
TL;DR: The authors report the empirical performance of Gallager's low density parity check codes on Gaussian channels, showing that performance substantially better than that of standard convolutional and concatenated codes can be achieved.
Abstract: The authors report the empirical performance of Gallager's low density parity check codes on Gaussian channels. They show that performance substantially better than that of standard convolutional and concatenated codes can be achieved; indeed the performance is almost as close to the Shannon limit as that of turbo codes.

3,032 citations

Book
31 Oct 1997
TL;DR: The Principles, Methods and Performance Limits of Carrier Frequency Recovery with Linear Modulations and Timing Recovery with CPM Modulations are presented.
Abstract: Introduction. Principles, Methods and Performance Limits. Carrier Frequency Recovery with Linear Modulations. Carrier Frequency Recovery with CPM Modulations. Carrier Phase Recovery with Linear Modulations. Carrier Phase Recovery with CPM Modulations. Timing Recovery in Baseband Transmission. Timing Recovery with Linear Modulations. Timing Recovery with CPM Modulations. Index.

1,029 citations

Journal ArticleDOI
TL;DR: A simple algorithm for detection of timing error of a synchronous, band-limited, BPSK or QPSK data stream is proposed and derivation of the s curve reveals a sinusoidal shape.
Abstract: A simple algorithm for detection of timing error of a synchronous, band-limited, BPSK or QPSK data stream is proposed. The algorithm requires only two samples per symbol for its operation. One of the two samples is also used for the symbol decision. Derivation of the s curve reveals a sinusoidal shape.

858 citations


"DVB-S2: The Second Generation Stand..." refers background in this paper

  • ...The large number of DVB-S receivers already installed makes it very difficult for many established broadcasters to think of an abrupt change of technology in favor of DVB-S2....

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Journal ArticleDOI
TL;DR: A digital algorithm is proposed that can be implemented very efficiently even at high data rates and allows free-running sampling oscillators and a novel planar filtering method that prevents synchronization hangups.
Abstract: The digital realization of timing recovery circuits for digital data transmission is considered. A digital algorithm is proposed that can be implemented very efficiently even at high data rates. The resulting timing jitter has been computed and verified by simulations. In contrast to other known algorithms, the one presented here allows free-running sampling oscillators and a novel planar filtering method that prevents synchronization hangups. >

604 citations

Trending Questions (1)
What are the DVB-S2 syncmarks?

The provided paper does not mention anything about DVB-S2 syncmarks.