Physical Layer Statistical Multiplexing for the Second Generation Digital Terrestrial TV Standard DVB-T2

[ES] En esta Tesina se han desarrollado algoritmos de multiplexación estadistica de servicios en capa física para el estándar de televisión digital terrestre de segunda generación, DVB-T2. Además, se ha hecho un estudio de las mejoras aportadas por este nuevo método de multiplexación con respecto a técnicas previas.[EN] DVB-T2 (Digital Video Broadcast ¿ Second Generation Terrestrial) is the new specification for the second generation of digital television. Currently, this standard is commercially deployed in UK, Sweden, Italy and Finland. Within the new features of this specification it should be noted the capacity improvement (close to 50%) with respect to DVB-T. On the other hand, the main changes are found in the physical layer where DVB-T2 incorporates a new concept, the Physical Payer Pipe (PLP). Each PLP contains an individual configuration of modulation, coding and interleaving. This new concept allows a transmission with multiple PLPs (MPLPs) where each service can be transmitted with different physical layer configuration. To perform this MPLPs configuration a physical layer service allocation is needed. By this way, in DVB-T2 the service allocation should be efficiently improved at the physical layer, not in the upper layers like in the first generation of DVB standards. This thesis work aims to study the statistical multiplexing methods in the upper layers to design a new algorithm in the physical layer. This algorithm seeks to enhance the bandwidth utilization, reduce the service buffering delay and increase the number of services in the transmission. In order to achieve the objective a simulation platform has been developed to analyze different multiplexing methods with a real DVB-T2 network configuration, verifying the potential gain of the new proposal.Puig Bou, J. (2011). Physical Layer Statistical Multiplexing for the Second Generation Digital Terrestrial TV Standard DVB-T2. http://hdl.handle.net/10251/27249.Archivo delegad

Implementing Statistical Multiplexing in DVB-H

A novel technique for implementing statistical multiplexing (StatMux) of broadcast services over Digital Video Broadcasting for Handhelds (DVB-H) channels is proposed. DVB-H uses a time-sliced transmission scheme to reduce the power consumption used for radio reception part in DVB-H receivers. Due to the time-sliced transmission scheme, the implementation of known StatMux methods for DVB-H application presents some challenges which are addressed in this paper. The proposed StatMux technique is implemented in conjunction with the time-slicing transmission scheme. The combination is similar to a time division multiplexing (TDM) scheme. The proposed StatMux method considerably decreases the end-to-end delay of DVB-H services while it maximizes the usage of available bandwidth. Moreover, the proposed method can effectively decrease the channel switching delay of DVB-H services. Simulation results show a high performance for the proposed StatMux method

Implementing statistical multiplexing in DVB-H

A novel technique for implementing statistical multiplexing (StatMux) of broadcast services over Digital Video Broadcasting for Handhelds (DVB-H) channels is proposed. DVB-H uses a time-sliced transmission scheme to reduce the power consumption used for radio reception part in DVB-H receivers. Due to the time-sliced transmission scheme, the implementation of known StatMux methods for DVB-H application presents some challenges which are addressed in this paper. The proposed StatMux technique is implemented in conjunction with the time-slicing transmission scheme. The combination is similar to a time division multiplexing (TDM) scheme. The proposed StatMux method considerably decreases the end-to-end delay of DVB-H services while it maximizes the usage of available bandwidth. Moreover, the proposed method can effectively decrease the channel switching delay of DVB-H services. Simulation results show a high performance for the proposed StatMux method. © 2009 Mehdi Rezaei et al

Implementation of statistical multiplexing in DVB-H system

U ovom radu analizirana je mogućnost implementacije statističkog multipleksiranja u sustavu za prijem televizijskog signala na dlanovnicima (DVB-H). Na praktičnim primjerima analizirana je potrošnja energije te spektralna učinkovitost determinističkog i statističkog multipleksiranja. Provedena je usporedba energetske i spektralne učinkovitosti ove dvije vrste multipleksiranja u uvjetima mobilnog prijema. Rezultati pokazuju da je primjenom statističkog multipleksiranja moguće poboljšati spektralnu učinkovitost za 30% do 45% uz neznatno povećanje potrošnje energije za 2% do 5% u odnosu na determinističko multipleksiranje.This research analyzed the possibility of implementing statistical multiplexing in DVB-H system. Energy consumption and spectral efficiency of deterministic and statistical multiplexing was analyzed on practical examples. Comparison of energy and spectral efficiency was made for these two types of multiplexing in terms of mobile reception. The results show that with use of statistical multiplexing it is possible to improve spectral efficiency by 30% to 45% with only a slight increase in power consumption (2% - 5%) compared to deterministic multiplexing

Implementation of statistical multiplexing in DVB-H system

U ovom radu analizirana je mogućnost implementacije statističkog multipleksiranja u sustavu za prijem televizijskog signala na dlanovnicima (DVB-H). Na praktičnim primjerima analizirana je potrošnja energije te spektralna učinkovitost determinističkog i statističkog multipleksiranja. Provedena je usporedba energetske i spektralne učinkovitosti ove dvije vrste multipleksiranja u uvjetima mobilnog prijema. Rezultati pokazuju da je primjenom statističkog multipleksiranja moguće poboljšati spektralnu učinkovitost za 30% do 45% uz neznatno povećanje potrošnje energije za 2% do 5% u odnosu na determinističko multipleksiranje.This research analyzed the possibility of implementing statistical multiplexing in DVB-H system. Energy consumption and spectral efficiency of deterministic and statistical multiplexing was analyzed on practical examples. Comparison of energy and spectral efficiency was made for these two types of multiplexing in terms of mobile reception. The results show that with use of statistical multiplexing it is possible to improve spectral efficiency by 30% to 45% with only a slight increase in power consumption (2% - 5%) compared to deterministic multiplexing

Implementation of statistical multiplexing in DVB-H system

U ovom radu analizirana je mogućnost implementacije statističkog multipleksiranja u sustavu za prijem televizijskog signala na dlanovnicima (DVB-H). Na praktičnim primjerima analizirana je potrošnja energije te spektralna učinkovitost determinističkog i statističkog multipleksiranja. Provedena je usporedba energetske i spektralne učinkovitosti ove dvije vrste multipleksiranja u uvjetima mobilnog prijema. Rezultati pokazuju da je primjenom statističkog multipleksiranja moguće poboljšati spektralnu učinkovitost za 30% do 45% uz neznatno povećanje potrošnje energije za 2% do 5% u odnosu na determinističko multipleksiranje.This research analyzed the possibility of implementing statistical multiplexing in DVB-H system. Energy consumption and spectral efficiency of deterministic and statistical multiplexing was analyzed on practical examples. Comparison of energy and spectral efficiency was made for these two types of multiplexing in terms of mobile reception. The results show that with use of statistical multiplexing it is possible to improve spectral efficiency by 30% to 45% with only a slight increase in power consumption (2% - 5%) compared to deterministic multiplexing