Two-Level HM with Dual Constellation Mapping Level 2 for DVB-H

shweta shah, Upena Dalal

Abstract


Hierarchical modulation (HM) technique explained in DVB-H technology serves user with different quality of video data for TV on cellular phone. This newer modulation technique has shown good spectrum utilization with availability of HDTV and SDTV video-quality reception. SDTV quality is by default quality to receive in any channel condition while HDTV quality is restricted to healthy reception condition which is indirectly wasting spectrum up to certain extent. The proposed three-layer hierarchical modulation technique is solution to the limitation of previous HM technique with the compromise of video quality as SDTV only. The analysis of three layer HM is carried out on three gray scale video using MATLAB simulation for all possible channel scenarios defined by DVB-H and upcoming standard DVB-NGH. The improvement possibility is shown by addition of simple post-processing

Keywords: Digital video broadcasting for handhelds, two levels HM with dual constellation mapping level 2, post processing

 


References


S. Mohammad-Sajad S. Improved Reception Schemes for Digital Video Broadcasting Based on Hierarchical Modulation. IEEE Radioengineering. 2011; 20(1).

Jiang H, Wilford P. Hierarchical Modulation for Upgrading Digital Broadcast Systems. IEEE Transactions on Broadcasting. 2005; 51(2): 223–9p.

DVB BlueBook A160, November 2012. CTAN:http://www.dvb.org/resources/public/standards/A160_DVB-NGH_Spec.pdf

Shu Wang, Byung K. Yi. Optimizing Enhanced Hierarchical Modulations. Proceedings of IEEE GLOBECOM, San Diego, CA. 2008; 1–5p.

Cover T. Broadcast channels. IEEE Transaction on Information Theory. 1972; 18(1): 2–14p.

Ramchandran K, Ortega A, Uz KM, et al. Multiresolution Broadcast for Digital HDTV using Joint Source/Channel

Coding. IEEE Journal Selected Areas of Communication. 1933; 11(1): 6–23p.

Schertz A, Weck C. Hierarchical modulation–The Transmission of Two Independent DVB-T Multiplexes on a Single Frequency. EBU Technical Review. 2003.

Paul KM. Mobile TV Broadcasting. IETE Technical Review. 2008; 25(1): 39–42p.

Mohamed H, Cheng-Hsin Hsu. Design and Evaluation of a Testbed for Mobile TV Networks. ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP). 2012; 8(1): Article No. 3.

ETSI EN 300 744 V1.5.1, 2004–2011. CTAN: http:// www.etsi.org.

Reimers U. Digital Video Broadcasting: The Family of International Standards for Digital Television, 2nd Edn. Springer, Berlin; 2004.

ETSI TR 101 290 Technical Report V1.2.1. Digital Video Broadcasting (DVB); Measurement guidelines for DVB systems. 2001–05.

ETSI TR 102 377 Technical Report V1.3.1. Digital Video Broadcasting (DVB); DVB-H Implementation Guidelines. 2009–03.

Kratochvíl T, Štukavec R. Hierarchical Modulation in DVB-T/H Mobile TV Transmission over Fading Channels. Proceedings of International Symposium, Society of Information Theory and its Applications (SITA). December 2008.

Xu Zhe, Wang Yong Sheng, Alberge F, et al. A Turbo Iteration Algorithm In 16QAM Hierarchical Modulation. IEEE International Conference on WirelessCommunications, Networking and Information Security (WCNIS). 2010; 9–12p.

Oluatayo O, Stanley H. Review of Channel Estimation for Wireless Communication Systems. IETE Technical Review. 2012; 29(4): 282–98p.


Refbacks

  • There are currently no refbacks.


This site has been shifted to https://stmcomputers.stmjournals.com/