Bandwidth partitioning in a wireless voice-data integrated system

We have developed a linear programming procedure to partition bandwidth to voice and data connections in a wireless integrated system in order to minimize voice delay and maximize data throughput with voice packet loss constrained. Results show that the linear programming performance can be approached quite closely by a simple round-robin scheme with adaptive threshold. An analytical procedure is developed for the round-robin scheme in order to determine the threshold, based on the number of voice connections. Simulation results indicate that when the number of connections or state space is large, the threshold value can be approximated by extrapolating linearly with a slope which equals the average rate of a connection. The round- robin scheme with adaptive threshold is thus shown to be a well-performing and easily-implementable scheme.