Dvb sh system for broadcasting to handheld devices
1 / 18

DVB-SH System for Broadcasting to Handheld Devices - PowerPoint PPT Presentation

  • Uploaded on

DVB-SH System for Broadcasting to Handheld Devices. Guided by Dr. K.R. Rao Irfan Kerawalla [email protected] Introduction. Mobile TV is expected to become one of the largest markets for mass media.

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
Download Presentation

PowerPoint Slideshow about 'DVB-SH System for Broadcasting to Handheld Devices' - vaschel

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Dvb sh system for broadcasting to handheld devices l.jpg

DVB-SH System for Broadcasting to Handheld Devices

Guided by Dr. K.R. Rao

Irfan Kerawalla

[email protected]

Introduction l.jpg

  • Mobile TV is expected to become one of the largest markets for mass media.

  • Growing number of mobile phone users around the globe has triggered excessive demand for multimedia content.

  • People are constantly on the move and want all the latest updates ranging from news to social life on their fingertips.

  • Users want high quality multimedia content delivered at fast speed.

What is dvb sh l.jpg
What is DVB-SH?

  • DVB-SH (Digital Video Broadcast - Satellite Services to Handheld Devices) is the name of a transmission system standard designed to deliver video, audio and data services to vehicles and handheld devices

  • It is designed to use frequencies below 3GHz, typically around 2.2GHz.

  • The system and waveform specifications have been published as ETSI standards. (TS 102 584, TS 102 585 and EN 302 583). [1]

Applications of dvb sh l.jpg
Applications of DVB-SH

  • Broadcasting of radio and TV content.

  • Broadcasting of audio or video content customized for mobile TV (e.g. virtual TV channels, podcasts,).

  • Data delivery (“push”), e.g. for ring tones, logos.

  • Video-on-demand services.

  • Informative services (e.g. news) including location-based services.

  • Interactive services via an external communications channel

    e.g. Universal Mobile Telecommunications System(UMTS).

Time slicing l.jpg
Time Slicing

  • The objective of time-slicing is to reduce the average power consumption of the terminal and enable smooth and seamless service handover. [8]

  • Time-slicing enables a receiver to stay active only a fraction of the time, while receiving bursts of a requested service.

  • Time-slicing also supports the possibility to use the receiver to monitor neighboring cells during the off-times.

  • By accomplishing the switching of the reception from one transport stream to another during an off period it is possible to accomplish a handover decision.

Orthogonal frequency division multiplexing ofdm l.jpg
Orthogonal frequency division multiplexing (OFDM)

  • It is a frequency-division multiplexing (FDM) scheme used as a digital multi-carrier modulation method.

  • OFDM (Orthogonal Frequency Division Multiplexing) [8] is the natural choice for terrestrial modulation and is the basis of both the DVB-H and DVB-T systems. DVB-SH introduces a second scheme, a time division multiplex (TDM), leading to two reference architectures termed SH-A and SH-B: [8]

  • • SH-A uses OFDM both on the satellite and the terrestrial link

  • • SH-B uses TDM on the satellite link and OFDM for the terrestrial link.

Compression in dvb sh l.jpg
Compression in DVB-SH

  • DVB-SH uses H.264/AVC compression standard.

Band used for dvb sh transmission l.jpg
Band used for DVB-SH transmission

Figure 4: S-Band used in DVB-SH transmission [7]

DVB-SH seeks to exploit the less congested, higher frequency, S-band where

there are opportunities for mobile satellite services (MSS) systems, operating in conjunction with complementary ground components (CGC).

Block diagram of the dvb sh system l.jpg
Block diagram of the DVB-SH system

Figure 5. Conceptual description of a DVB-SH system [11]

Basic parameters in dvb physical layer l.jpg
Basic parameters in DVB physical layer

Table 1. Physical layer parameters and data rates of DVB-SHsystem [11]

Dvb sh systems in the united states l.jpg
DVB-SH systems in the United States

  • The telecom operator AT&T has agreed to buy spectrum in the lower 700 MHz frequency band licensed by Qualcomm. [12]

  • Alcatel Lucent has hosted successful trials of DVB-SH systems across the United States. [12]

  • ICO Global Communications has successfully launched a satellite named ICO G1 specifically for mobile television. [12]

Slide16 l.jpg


[1] ETSI EN 301192: Digital Video Broadcasting (DVB); DVB specification for data broadcasting (DVB-DATA).

[2] ETSI TS 102005: Digital Video Broadcasting (DVB); Specification for the use of video and audio coding in DVB services delivered directly over IP.

[3] ETSI EN 300468: Digital Video Broadcasting (DVB); Specification for Service Information (SI) in DVB systems (DVB-SI).

References [1][2]and[3] can be accessed on


[4] DVB BlueBook A079 Rev. 1: IP Datacast over DVB-H: PSI/SI.


[5] DVB BlueBook A111: Framing structure, channel coding and modulation for Satellite Services to Handheld devices (SH) below 3GHz.


Slide17 l.jpg

[6] DVB-Scene edition No. 21: A New Star in the Sky, by Prof. Dr-Ing. Ulrich Reimers.

[7]P. Kelley, C. Rigal, “DVB-SH in S-band”

References [6] and [7] can be accessed from http://www.ebu.ch/fr/technical/trev/trev_311-dvb_sh.pdf

[8] DVB-SH fact sheet 0409, April 2009


[9] ETSI EN 302304 V1.1.1. (2004-11): Digital Video Broadcast


[10]Block diagram for encoder and decoder of H.264


[11] Faria et al. “DVB-H: Digital broadcast services to handheld devices”, Proceedings of the IEEE, vol. 94, no. 1, January 2006, pages 195 – 197.

[12] DVB news updates


Slide18 l.jpg

Thank you Prof. Dr-