Combined Time and Space Diversity: Mobile Reception in DVB-T and DVB-T2 Systems

Gozalvez, D.; López-Sánchez, J.; Gómez-Barquero, David; Giménez, Jordi Joan; Cardona, Narcís

doi:10.1109/mvt.2012.2218143

Cited by 8 publications

(3 citation statements)

References 8 publications

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“…Up to now, several studies have analyzed the quality of the DVB-T2 and DVB-T2-Lite digital signals in outdoor fixed and mobile scenarios [3]- [8]. However, the quality of the reception in portable indoor scenarios has not been sufficiently studied.…”

Section: Introductionmentioning

confidence: 99%

Field Trials-Based Planning Parameters for DVB-T2 Indoor Reception

Regueiro

Gil

Vélez

et al. 2015

IEEE Trans. on Broadcast.

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This paper presents the field trials carried out in Bilbao (Spain) for testing and analyzing the performance of the DVB-T2 indoor (fixed and pedestrian) reception. Test services with different DVB-T2 and T2-Lite configuration modes have been broadcasted and indoor measurements have been carried out. As a result, signal to noise ratio threshold values for DVB-T2 indoor reception have been obtained. These values update those provided by previous studies and are also valid for planning tools to be used by broadcasters in the development of DVB-T2 networks.

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Section: Introductionmentioning

confidence: 99%

Field Trials-Based Planning Parameters for DVB-T2 Indoor Reception

Regueiro

Gil

Vélez

et al. 2015

IEEE Trans. on Broadcast.

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“…Tradeoffs in terms of diversity, latency and power saving are studied but results for TFS are not provided. In [6] the same authors proposed empirical TFS gain figures. However, these results are based on field strength measurements and do not consider the real DVB-T2 system performance.…”

Section: Introductionmentioning

confidence: 99%

A software based DVB-T2 Time Frequency Slicing evaluation framework

Morgade

Angueira

Arenas

et al. 2013

2013 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB)

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Abstract-DVB-T2 is the second generation terrestrial broadcast system developed within the DVB consortium. Based on multi-carrier transmission OFDM, DVB-T2 introduces many innovative tools offering high flexibility to broadcasters. Among many other new techniques DVB-T2 defines an optional TimeFrequency-Slicing (TFS) profile. In TFS slices of a PLP are sent over multiple and non necessarily adjacent RF frequency channels. This technique provides a gain associated to propagation diversity, as well as an intrinsic multiplexation gain. Following a software defined radio approach this paper presents a flexible DVB-T2 Time Frequency Slicing evaluation framework built to study the practical performance of DVB-T2 Time Frequency Slicing configurations under realistic channel scenarios. The paper focuses on the diversity gain associated to propagation diversity.

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“…Time diversity is achieved by means of Time Interleaving (TI) [22]. With TI, multiple codewords are interlaced so that parts of each codeword are transmitted over an extended period of time (interleaving duration).…”

Section: Chapter 2 Multi-rf Technologies In the Next-generation Dtt mentioning

confidence: 99%

Improved Spectrum Usage with Multi-RF Channel Aggregation Technologies for the Next-Generation Terrestrial Broadcasting

Gandia¹,

Joan²

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Next-generation terrestrial broadcasting targets at enhancing spectral efficiency to overcome the challenges derived from the spectrum shortage as a result of the progressive allocation of frequencies-the so-called Digital Dividendto satisfy the growing demands for wireless broadband capacity. Advances in both transmission and video coding technologies are paramount to enable the progressive roll-out of high video quality services such as HDTV (High Definition Televison) or Ultra HDTV. The transition to the second generation European terrestrial standard DVB-T2 and the introduction of MPEG-4/AVC video coding already enables the transmission of 4-5 HDTV services per RF (Radio Frequency) channel. However, the impossibility to allocate higher bitrate within the remaining spectrum could jeopardize the evolution of the DTT platforms in favour of other high-capacity systems such as the satellite or cable distribution platforms. Next steps are focused on the deployment of the High Efficiency Video Coding (HEVC) standard, which provides up to 50% coding gain with respect to AVC, with the next-generation terrestrial transmission standards. This could ensure the competitiveness of the DTT. Broadcasting standardization bodies are planning the technical evolution of the standards. The North American standard ATSC (Advanced Television Systems Committee) is being evolved to the ATSC 3.0 standard. DVB is also evaluating the convenience of an evolution beyond DVB-T2. The proposed techniques in this fora focus on shortening the gap to Shannon limit through more efficient modulation and coding schemes, the combined provision of fixed and mobile services, the introduction of spatial diversity, or the aggregation of the capacity of multiple RF channels, among others. This dissertation addresses the use of multi-RF channel aggregation technologies to increase the spectral efficiency of future DTT networks. The core of the Thesis are two technologies: Time Frequency Slicing (TFS) and Channel Bonding (CB). TFS and CB consist in the transmission of the data of a TV service across multiple RF channels instead of using a single channel. CB spreads data of a service over multiple classical RF channels (RF-Mux). TFS spreads Contents

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Combined Time and Space Diversity: Mobile Reception in DVB-T and DVB-T2 Systems

Cited by 8 publications

References 8 publications

Field Trials-Based Planning Parameters for DVB-T2 Indoor Reception

Field Trials-Based Planning Parameters for DVB-T2 Indoor Reception

A software based DVB-T2 Time Frequency Slicing evaluation framework

Improved Spectrum Usage with Multi-RF Channel Aggregation Technologies for the Next-Generation Terrestrial Broadcasting

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