The Comparison of Queueing Performance of Single-Step and Multiple-Step Power Control Schemes in Finite State Markov Channel

Cross-layer design has been drawing much attention recently. However, few works are related to how traditional power control schemes, like single-step and multiple-step power control schemes, affect the queueing performance. In light of this, we will compare the queueing performance of single-step and multiple-step power control schemes in finite state Markov channel (FSMC) through simulation in this work. Along with this comparison, we will propose an approach to estimate the power control error (PCE) in the single-step power control scheme. Based on the estimated PCE, the theoretical performance of single-step power control scheme is given. Simulation results have shown that the multiple-step power control scheme is superior to the single-step power control scheme regarding queueing length, service time and throughput. Simulations also validates the proposed PCE estimation and the theoretical performance based on the estimated PCE.