This paper provides a review of the second generation terrestrial digital video broadcasting standard (DVB-T2). DVB-T2 is evolution DVB-T and, together with DVB-S2 and DVB-C2, inaugurated new transition from first-generation systems, similar to analog-to-digital systems. In this paper, most relevant features are explained in detail, along their benefits trade-offs. also presents comprehensive laboratory field trial results available so far. Especial emphasis placed measurements carried out...

In practical unlicensed communications in TV band, radio devices have to identify, at first, the transmission opportunities, that is, portion of spectrum licensed for broadcasting services unoccupied a certain region time, so-called white space. this paper outcome field measurements UHF band (470–860 MHz) conducted EU is presented. To obtain empirical values parameters upon which are able distinguish real scenario between empty and occupied channels, signal power been performed Italy, Spain,...

In DVB-T2, the single frequency network (SFN) mode is an attractive planning alternative to well-known multiple (MFN) mode. SFN networks provide augmented spectrum efficiency as well a quality of service improvement due more homogeneous distribution received signal strength over coverage area. Nevertheless, some areas will also show degradation in practice. order improve performance operation, second generation broadcast system DVB-T2 standard incorporates input output (MISO) antenna...

This paper presents a study on the coexistence issue of digital terrestrial TV broadcasting and cognitive broadband access operation in white spaces (TVWS). Extended measurements were performed to evaluate protection existing Second generation video standard (DVB-T2) services presence IEEE 802.22 WRAN co-channel adjacent channel interference. The absence picture failure over 30 consecutive seconds decoded DVB-T2 streams has been monitored obtain maximum tolerable level interference, which...

Efficient and flexible use of spectrum will be inherent characteristics 5G communication technologies with native support wideband operation frequency reuse 1 (i.e., all transmit sites available resources). Although not in the very first release 3GPP, it is expected that broadcast/multicast technology components later added fully integrated system. The combination both may provide significant gains for broadcast transmissions terms energy efficiency, since more efficient to increase capacity...

An approach that predicts the propagation, models terrestrial receivers and optimizes performance of single frequency networks (SFN) for digital video broadcasting in terms final coverage achieved over any geographical region, enhancing most populated areas, is proposed this paper. The effective improvement thus, self-interference reduction SFN accomplished by optimizing internal static delays, sector antenna gain, both azimuth elevation orientation every transmitter within network using...

This paper studies two of the available heuristic algorithms to optimize digital broadcasting network's planning. Particle Swarm Optimization (PSO) and Simulated Annealing (SA) are compared working in different OFDM modes. These manipulate information network with static delays order maximize covered area as well possible at minimum cost. a modes synchronization strategies. Furthermore, they have been used estimate coverage interference degree planning placed Basque Country, northern Spain.

This paper describes the results of project "Integration Broadcast and Broadband in LTE/5G" (IMB5). The IMB5 explores LTE-broadcast mode eMBMS within two detailed single-frequency-network (SFN) field trial networks Erlangen Munich, Germany identifies potential improvements current broadcasting feature LTE towards future releases 4G 5G. On User Equipment (UE) side, terminals from Qualcomm Samsung based on commercial chipsets have been used mainly for application layer tests. For physical...

Owing to increasing consumption of video streams and demand for higher quality content more advanced displays, future telecommunication networks are expected outperform current in terms key performance indicators (KPIs). Currently, delivery (CDNs) used enhance media availability across the Internet a cost-effective manner. The proliferation CDN vendors business models allows provider (CP) use multiple providers simultaneously. However, extreme concurrency dynamics can affect capacity,...

Single frequency networks (SFN) are usually considered to deploy OFDM modulation based digital broadcast systems, exploiting the multipath tolerance of receivers, which capable combining signals coming from several transmitters with different propagation delays. In this work, a planning tool is proposed improve coverage area in SFN networks, optimizing transmission parameters such as delay or power, using 3D terrain maps along prediction estimate power received at each location inside area....

This paper presents an analysis of the characteristics DVB-T2 standard to deliver 3DTV contents (3DTV). The work has been based on current state-of-the-art developments in technologies that enable delivery, from production displays, with special emphasis formats and coding efficiencies. Based bitrate format requirements capacity is investigated, proposing two roll-out scenarios discussing associated configuration parameters. target receivers are both fixed portable, different backward...

This paper focuses on the potential enhancements of DVB-T2 standard by use newly designed Two-Dimensional Non-Uniform Constellations (2D-NUQAM). In this work, a complete analysis system performance when using proposed 2D-NUQAM constellations against regular uniform (M-QAM) is presented. Based optimization Bit-interleaved Coded Modulation (BICM) capacity, provide improvement 1.05 dB for overall in high order constellations. All carried out analyses are based specification simulation where...

This paper presents an extended study of the spectrum occupancy in UHF frequency band (470-870MHz) Spain and Italy. The objective is to establish by signal power measuring if cognitive devices are able detect distinguish a Hidden Node scenario between empty occupied TV channels. has been performed, for each these two countries, at three different sites heights over ground assessing hidden node margin. measurements were carried out urban, suburban rural environments close city Bilbao while...

In this work, the usefulness and limitations of a planning tool that combines propagation prediction method modern heuristic technique when applied to improve coverage area in single frequency networks (SFN) is presented. The uses 3D digital terrain maps along with model estimate contribution any transmitter SFN at each location within region which intended be deployed, given terms parameters such as received power delay. Furthermore, particle swarm optimization (PSO) algorithm used optimize...

This paper presents the results obtained from first extensive field trials of medium wave DRM (digital radio mondiale) simulcast, which were carried out in Mexico D.F.. The transmitted signal was composed a 10 kHz bandwidth AM part at 1060 and an adjacent 1070 broadcasting same audio contents with theoretically calculated back-off ratio 16 dB transmission. this will be accompanied by thorough description transmission network set up also measurement system techniques. data processing...

In DVB-T2 broadcast networks, the Single Frequency Network (SFN) mode is an attractive alternative to well-known Multiple (MFN) mode. SFN networks provide augmented spectrum efficiency as well a quality of service improvement due more homogeneous distribution received signal strength. Nevertheless, in practice, some areas will also show degradation caused by long echoes. order improve performance under harsh receiving conditions, standard incorporates Input Output (MISO) antenna diversity...

In the last years, migration from analog to digital terrestrial television systems has favored deployment of Single Frequency Networks (SFN), more efficient a spectrum point view, provide DVB-T services in larger geographical areas through reuse frequencies. However, planning SFN is not trivial task, since designer must find trade-off between quality service (QoS) required area and overall cost involving maintenance such network, which depends primarily on number transmitters needed their...

Media delivery represents one of the main challenges for future networks which aim to converge Broadcast and Broadband video traffic into a common telecommunication network architecture. Nowadays, contents streamed over Internet are delivered in two different manners depending on application: Video Demand Live Streaming. For former, HTTP-based streaming technologies, such as Dynamic Adaptive Streaming HTTP (MPEG-DASH), widely employed unicast broadcast communications. It also enables Rate...

This paper analyzes a methodology to evaluate the efficiency of different network configurations and associated planning parameters for delivering DVB-T2 services fixed portable receivers, based on theoretical SFN networks. The impact some calculation algorithms final coverage percentage values architectures has been studied from simulations. results have shown that synchronization strategy signal combination method relevant percents within service area both reception.

This paper presents a novel methodology to characterize the DVB-T2 MISO vs SISO performance using field test measurements. The proposed uses general purpose digital vector signal analyzers record required MISO/SISO IQ (In-phase and in-quadrature) signals in coverage area be later processed laboratory play out system with software based custom receiver commercial receiver.

This paper presents an extended study of the performance 802.22 WRAN system operating into same coverage range a DTT receiver. We performed measurements for evaluating protection existing broadcasting services. In order to evaluate systems interfered by transmission in their adjacent channels, Picture Failure levels have been monitored different operation modes standard. The goal present is find maximum power level and bandwidth configuration signal channels active that ensures primary...