MOBILE TV : The new competition in the Market

 Amid the flurry of activity and hype surrounding mobile tv , various network models and technology platforms have emerged as contenders . Let's explore the options . 

 there is presently a great deal of Industry hype surrounding mobile television . said by some to be the next killer application of mobile sector and dismissed by others as having no sustainable business model , mobile tv is a conjure of possibilities . it lies at the eyes of maelstorm technologies network models and frequency bands , waiting for many trials to end and a manifestation of clue as to the most practical and commercially viable direction .

he notion of the television delivering signals to a moving receiver is not a entirely new concept . A no. of countries have for years enjoyed live digital tv in buses and trains . , courtasy of Digital video broadcasting - Terrestrial (DVB-T) Technology . Utilizing coded Orthogonal Frequency Division Multiplexing Modulation (COFDM) , DVB-T was originally designed with mobile applications in mind . The signal can accomodate variations in signal strength , field strength and multiple reflections that typically reach a receiver in motion .

However despite this foresight in it's development , DVB-T as it stands is not appropriate for broadcasting to handheld devices . Nor is its US counterpart The Advanced Television System committee  (ATSC) standard ,  utilizing8 vestigial side band modulation , which was never designed for mobile applications .

Experiencing TV on handheld devices .raises a whole

 new set of  issues that has spawned several new  broadcast technology platforms . Attracting the most attention Globally is the digital video broadcast to handheld (DVB-H) standard which is derived from DVB-T . The most important difference is that DVB-H transmits the signal bursts in order to conserve handset batery life . It also incorporates greater forward error correction essential for boosting  handheld reception Another significant difference is that the data encapsulation technique . The DVB-H stream is an IP datacast at 200 to 500 kbps/program , yielding up to 50 programs in an 8 Mhz channel . This resolution is sufficient for the tiny handset . screen . In contrast  , standard definition  DVB-T uses MPEG-2 encoding at 4-5 Mbps /program yielding upto 5 standard resolution programs per channel .

DVB-H is not only mobile TV platform finding favor . Korea and China are first to embrace terrestrial  digital multimedia broadcast (T-DMB) derived from eureka 147 digital audio broadcast (DAB) standard . Moreover USA Qualcom has developed the forward link only (FLO) technology for the delivery of multimedia content T-DMB , FLO , and DVB-H have delivery of multimedia copntent

To know more about these Technologies , Go through the following books 

IP Multicast with Applications to IPTV and Mobile DVB-HImplementing Mobile TV, Second Edition: ATSC Mobile DTV, MediaFLO, DVB-H/SH, DMB,WiMAX, 3G Systems, and Rich Media Applications (Focal Press Media Technology Professional Series)

Digital Television, Third Edition: Satellite, Cable, Terrestrial, IPTV, Mobile TV in the DVB FrameworkMobile TV: Customizing Content and Experience (Human-Computer Interaction Series)

Implementing Mobile TV, Second Edition: ATSC Mobile DTV, MediaFLO, DVB-H/SH, DMB,WiMAX, 3G Systems, and Rich Media Applications (Focal Press Media Technology Professional Series)

Newnes Guide to Television and Video Technology, Fourth Edition: The Guide for the Digital Age - from HDTV, DVD and flat-screen technologies to Multimedia Broadcasting, Mobile TV and Blu Ray

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Paper Template, SRF

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Rich, Elaine, Artificial Intelligence. McGraw-Hill, New York, 1983.

Stillman, J.P., "On Heuristics for Finding Loop Cutsets in Multiply Connected Belief Networks." Technical Report, General Electric Research and Development Centre, September, 1989.

Schweiter, G.A. and Stromquist, W.R., "The Effect of Sensor Quality on Tracker/Correlator Performance." Technical Proceedings of the 1990 Joint Service Data Fusion Symposium (Laurel, MD, May 15-18, 1990). Naval Air Development Center, Warminster, PA, pp 197-222.

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