Modeling, performance evaluation, and ordinal optimization of integrated voice/data networks

The evaluation of data-packet delay in integrated networks is a difficult problem because the quantity of network resources available for data traffic is time varying and dependent on the voice traffic. We demonstrate that an extremely simple model for data-packet delay, although inaccurate in terms of delay measurements, can provide a remarkably accurate ranking among a number of different control policies. We also address the issues associated with the development of accurate delay models, and develop a simplified model for voice traffic in wireless networks that provides a highly accurate characterization of the time-varying resources used by voice, and hence available for data.<>