Tuning PID controllers for desired closed loop performance specifications

Abstract

Increasing demand of cellular communication services & limited frequency spectrum leads to a NP hard dilemma of channel allocation. Most of the existing channel allocation techniques are dynamic channel allocation (DCA) based on various optimization algorithms.DCA minimizes the call blocking probability on account of desolate electromagnetic compatibility constraints, which produces significant interferences for call dropping. Today’s escalating non uniform traffic has some fixed amount of traffic persistently. For such today’s traffic behaviors & solving a NP hard channel allocation problem, a genetic algorithm based hybrid channel allocation technique is proposed. Interference graph based fitness function is used in this technique which minimizes interference & fallout a minimum call drop & call block probability.