A Simple Mathematical Model for Performance Evaluation of Finite Buffer Size Nodes in Non- Saturated IEEE 802.11 DCF in Ad Hoc Networks

摘要: Analytical models help in predicting the change results once input parameters of networks are changed. A lot modeling work has already been carried out to evaluate performance IEEE 802.11 DCF for both saturated and non-saturated networks. Most considering arbitrary buffer size nodes conditions uses complex mathematically approach. In current paper, we present a flexible practical transform-free approach evaluating MAC protocol. The simplicity fastness our algorithm is due simple closed form expressions determine idle probability blocking with K assuming each node as discrete M/G/1/K queue. proposed model gives accurate which validated through ns2 simulations.