A Highly Effective Multiplexing Strategy of VBR Real-Time Stream in Multiple Channels

Abstract

In the demand of compounding transmission with SD and HD programs, based on analyzing two kind of multiplexing models’ characteristic with monopolizing buffer and sharing buffer, it proposes a kind of highly effective multiplexing strategy for multi-channel MPEG-2/AVS real-time stream. As is indicated by theoretical derivation and simulated result, this strategy can multiplex the greatest data quantity, without transmitting loss and with the least resource, thus is more advantageous in raising channel utilization.

A Research of Highly Effective Statistical Multiplexing Strategy

“…The former schedules and multiplexes data from its input buffer in order, so data delay time is rather even in the process of multiplexing, but it would take more buffer capacity. While the latter gives more sending chances for stream in high rate, so it needs less buffer, but its data delay is hard to estimate when each input rate is significantly disparate from others [4]. When input data rate is so vary to surpass buffer capability, some packets need to disperse to prevent data overflow.…”