Reduction of channel zapping delay in IPTV services

Abstract

THIS PAPER ANALYSES THE EXISTING DELAY WITHIN AN IPTV SYSTEM WHEN A USER SELECTS AN OTHER CHANNEL, AND A NEW ALGORITHM IS USED TO REDUCE IT. BASED ON THE ADJACENT GROUPS METHOD, WHICH REDUCES THE TIME ACQUISITION OF A NEW CHANNEL PLACING THE ORDER NOT ONLY FOR THAT CHANNEL BUT ALSO FOR THE ADJACENT CHANNELS. THERE ARE TWO PRINCIPLES UNDER COONSIDERATION, ONE THAT THERE EXISTS A SUFFICIENT BANDWIDHT, AND THE OTHER, A MULTICAST TRANSMISSION (CHUNGLAE, 2004). AT THE END OF THE PAPER, THE OBTAINED RESULTS ARE COMPARED AGAINST THE PRESENT ONES AND THE POSSIBILITIES OF THE ALGORITHM ARE DETERMINED.