Throughput Modeling of Distributed Reservation Protocol
Abstract: To evaluate the performance of distributed medium access control (MAC) layer of emerging ultra wideband (UWB) and 60-GHz millimeter wave (mmWave) wireless personal area networks (WPANs) based on distributed reservation protocol (DRP) of ECMA-368 and ECMA-387 standards, we provide an analytical model for the probability distribution of steady state throughput as a function of the network dimensions size, number of devices, antenna beamwidth, transmission range, bit error rate (BER), antenna disturbance rate (ADR), aggregation length, payload size, and incoming frame rate. Using this model, the optimal payload size is computed as an example of optimization problem. We also propose a formula forthe starvation and fairness and using them, we found a major flaw in DRP, i.e., its poor fairness. We develop a fair DRP (FDRP) protocol and modify our model to cover it. The models are evaluated by simulation of ad-hoc network scenarios and results show that the average error is less than 2 percent.