Channel capacity distribution of Layer-Division-Multiplexing system for next generation digital broadcasting transmission

Zhang, Liang; Wu, Yiyan; Li, Wei; Kim, Heung Mook; Park, Sung Ik; Angueira, Pablo; Montalbán, Jon; Vélez, Manuel

doi:10.1109/bmsb.2014.6873500

Cited by 31 publications

(20 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The LDM's main advantages are its efficient use of the spectrum, the increase in the amount of data transmitted [11], robustness against co-channel interference and multipath distortion. Furthermore, the lowest level layer is compatible with any high rate digital broadcasting technology [12].…”

Section: Layer Division Multiplexingmentioning

confidence: 99%

Robustness against the effects of multipath in an ISDB-T LDM broadcast system using diversity at reception

Rabaca¹,

Akamine²,

Oliveira³

et al. 2017

SET IJBE

View full text Add to dashboard Cite

Abstract-This paper presents the ISDB-T LDM system, with the Core Layer fully compatible with the traditional ISDB-T and the Enhanced Layer using the Non-Uniform Constellation 64-QNUC, in order to improve spectral efficiency, performance, robustness and useful bit rate, so that it is possible to use it for UHDTV applications. In order to reach these goals, in addition to the LDM technique, the LDPC encoder/decoder concatenated with the BCH were used. The SDR/GRC implementation was used and the reception diversity was achieved by the use of the MRC method. To prove its efficiency, some tests were performed using the proposed system in environments with AWGN and multipath channels.

show abstract

Section: Layer Division Multiplexingmentioning

confidence: 99%

Robustness against the effects of multipath in an ISDB-T LDM broadcast system using diversity at reception

Rabaca¹,

Akamine²,

Oliveira³

et al. 2017

SET IJBE

View full text Add to dashboard Cite

show abstract

“…Moreover, they are characterized by operating SNRs around 15 to 20 dB [8], that are significantly larger than the decoding threshold of the mobile layer, hence potentially decreasing the computational burden (i.e., by reducing the number of decoding iterations of a turbo or LDPC decoder). Also, the utilization of the same OFDM waveform structure (i.e., FFT size, cyclic prefix and pilot pattern) for the two layers greatly simplifies the LDM signal detection and cancellation at the receivers [9].…”

Section: Introductionmentioning

confidence: 99%

“…This presentation of the results is novel, and provides a comprehensive understanding of the potential gain that can be achieved by introducing mobile services in existing DTT networks dimensioned for fixed rooftop reception via LDM. To the best of our knowledge, the only information-theoretic analysis applied to DTT in the literature is [9], which is, however, restricted to SISO Gaussian channels and ideal channel coding. Furthermore, reference [9] presents an illustrative but reduced set of capacity-coverage results which do not shed light on the regime of interest of guaranteed fixed coverage with controlled fixed capacity reduction.…”

Section: Introductionmentioning

confidence: 99%

“…To the best of our knowledge, the only information-theoretic analysis applied to DTT in the literature is [9], which is, however, restricted to SISO Gaussian channels and ideal channel coding. Furthermore, reference [9] presents an illustrative but reduced set of capacity-coverage results which do not shed light on the regime of interest of guaranteed fixed coverage with controlled fixed capacity reduction. As a final remark, we point out that fixed users could experience an increased service capacity by using scalable video coding [11], whereby the mobile service layer carries a basic version of the content [12].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

LDM Versus FDM/TDM for Unequal Error Protection in Terrestrial Broadcasting Systems: An Information-Theoretic View

Gómez-Barquero

Simeone

2015

IEEE Trans. on Broadcast.

View full text Add to dashboard Cite

“…One of the latest digital broadcasting technology families, DVB, is capable of delivering both fixed and mobile services simultaneously in one radio frequency channel using Time Division Multiplexing (TDM). However, other physical layer technologies like cloud transmission with Layer Division Multiplexing (LDM) are being proposed to be used in next generation digital TV broadcasting system [112]. In this system, a layered transmission structure is used to simultaneously transmit multiple signals with different robustness for different services: mobile, HDTV or UHDTV.…”

Section: Future Research Issuesmentioning

confidence: 99%

Broadcasting in 4G mobile broadband networks and its evolution towards 5G

Gaspar¹

View full text Add to dashboard Cite

networks and its evolution towards 5GAls meus pares, als meus germans i a Clara. AbstractOne of the challenges of the mobile industry is to cope with the growth of mobile traffic demand expected for the next years, primarily driven by the increasing usage of mobile video services. Indeed, the existence of increasingly powerful terminals is encouraging the consumption of high-quality video content. Usually, video services are identified with linear Television (TV) and scheduled broadcast (point-to-multipoint (p-t-m)) distribution. However, the consumption of video content over mobile networks is different from traditional fixed TV because contents are mainly consumed on-demand with unicast point-to-point (p-t-p) connections. Then, the convergence of linear TV and on-demand content delivery represents a challenge that requires a combined broadcast/unicast transmission model. This dissertation addresses the use of broadcasting technologies for the provision of mobile multimedia services in Fourth Generation (4G) mobile broadband networks and beyond. Specifically, the dissertation focuses on the broadcast technology included in 4G Long Term Evolution (LTE) and LTE Advanced (LTE-A) networks, known as Evolved Multimedia Broadcast Multicast Services (eMBMS). It analyses the benefits of the eMBMS physical layer aspects regarding Multimedia Broadcast Multicast Services over Single Frequency Network (MBSFN) deployments and identifies the current limitations of eMBMS at physical layer by comparing with the broadcast technology of the other 4G mobile system, the IEEE 802.16m standard. Those limitations are the use of a dedicated carrier and Multiple-Input Multiple-Output (MIMO) techniques for broadcast transmissions. Our investigations employ a complete simulation platform including link-level and system-level simulations to evaluate the performance of broadcast transmissions in these real technologies.The research on eMBMS services is aimed at finding the optimum delivery of streaming and file download services focusing on the Radio Resource Management (RRM) problem and trade-off between Physical layer -Forward Error Correction (PHY-FEC) and Application Layer -Forward Error Correction (AL-FEC). Concerning streaming services, results show that the use of i ABSTRACT AL-FEC increases the coverage level and, then, the maximum service data rate. The gain due to AL-FEC is greater in scenarios with high mobility users, although, this gain is limited if low zapping times are desired. Regarding file delivery services, this dissertation analyses the duration of the transmission required to guarantee the correct file reception and the reduction in the mean throughput of unicast users with different delivery modes. They are the unicast delivery, the eMBMS delivery and a hybrid approach, which combines a first eMBMS delivery with a post-delivery error repair phase with unicast transmissions. Our results show that the hybrid delivery is the most efficient configuration in terms of file download time, although it further reduces unicast ...

show abstract

Channel capacity distribution of Layer-Division-Multiplexing system for next generation digital broadcasting transmission

Cited by 31 publications

References 3 publications

Robustness against the effects of multipath in an ISDB-T LDM broadcast system using diversity at reception

Robustness against the effects of multipath in an ISDB-T LDM broadcast system using diversity at reception

LDM Versus FDM/TDM for Unequal Error Protection in Terrestrial Broadcasting Systems: An Information-Theoretic View

Broadcasting in 4G mobile broadband networks and its evolution towards 5G

Contact Info

Product

Resources

About