be done. C.2 Handheld Television: Viewing Issues The number of picture elements and the number of colours rendered mainly describe the display quality. In fact, current high-end mobile phone displays can provide one-sixteenth and personal data assistant (PDA) devices one-quarter of the picture elements of a standard TV. Scaling the viewing distance by the same amount it is found that a handheld TV can provide home TV viewing quality. It has been also demonstrated that picture element density can be increased two times with no problems using the current technology. This would guarantee extremely good viewing quality for a handheld device. As a result it can be seen that picture quality is not an essential problem. From this point of view, a handheld TV should rather be called a 'personal' TV since its watching experience will be solitary. Advanced Cellular Network Planning and Optimisation Edited by Ajay R Mishra © 2007 John Wiley & Sons, Ltd Digital Video Broadcasting Indeed, handheld means more short-time viewing of clip material, but devices can also be set on a table top, which could also mean long-time viewing as well. These are indications that a handheld TV is a viable concept for broadcast TV, especially with the expected progress in display technology. However, the handheld TV is not limited to the television only and can be seen as a universal system for download. This in turn puts it as one of the components in a wider landscape of emerging wireless broadband systems. Compared to a digital terrestrial television, the handheld television is much more difficult from a technical standpoint: Mobile terminals have microscopic antenna size compared to standard television antennas. This requires higher signal levels with respect to television. Mobile reception is expected in virtually every place, especially inside buildings and in vehicles. This puts extraordinary demands on signal transmission which must be very robust. The power supply is limited, which may severely restrict consumption of TV content. The m