In this paper, we address the problem of multimedia streaming

over DiffServ networks that offer various qualities of service (QoS)

at different price points. In particular, we seek cost-distortion optimized

transmission policies that minimize the distortion seen by

the client under a cost constraint. Our results show that for ondemand

streaming of stored media, DiffServ networks provide little

or no gain over networks that offers only a single, cost-effective,

QoS. However, for real-time conversational communication or multicast

streaming, optimized transmission over DiffServ networks

can perform better than optimized transmission over any single

QoS by over 2 dB at the same cost.

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In: Int'l Conf. Multimedia and Exhibition

Publisher: Institute of Electrical and Electronics Engineers, Inc.
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