A new borrow-and-return model for broadcasting videos with low user delay

Broadcasting is an efficient method of video transmission but it imposes a user delay. This user delay can be reduced effectively without increasing the number of channels by lending the free time slots of the videos without viewers to those videos with viewers to speed up the latter\´s transmission. This technique can be applied to those broadcasting protocols that broadcast the first segment on the first channel. This borrow-and-return technique uses unutilized bandwidth of some videos to reduce other\´s user delay. This paper proposes an improvement over existing borrow-and-return model, which makes even more efficient use of borrowed bandwidth. The new model reduces the user delay further by eliminating premature transmission of video data in the "return" phase.