A novel delay analysis for polling schemes with power management under heterogeneous environments

Abstract

This paper studies the delay performance of IEEE 802.11 PCF with power saving under heterogeneous environments (particularly the heterogeneous sleeping interval). We propose applying the classic pure limited service queuing system to analyze the mean and variance of the total delay without developing a new analysis model. Compared to the related works, our method is simple and scalable, while our results are general. Simulations show that our analytical results are very accurate for both homogeneous and heterogeneous environments.