Demultiplexing Heterogeneous ON/OFF Streams

The changes of the statistical characteristics of LRD and SRD packet traffic streams, which pass across a multiplexer-queue-demultiplexer (MUX/DEMUX), are investigated. The results show that the tail distribution and the correlation structures of the ON/OFF streams have been changed by the MUX/DEMUX network. Furthermore, depending on the statistical characteristics of the input traffic, the demultiplexed traffic can be LRD with exponential decay in its ON and OFF sojourn times. This observation challenges established beliefs, and implies that LRD is not necessarily a direct consequence of heavy-tailed ON/OFF sojourn times