SimEvents-based modeling and simulation study of Stop-and-Wait protocol

Stop-and-Wait protocol is one of the main flow error control mechanisms that enables destination entities to regulate the flow of packets sent by source entities. Modeling and simulation form some of the most important topics in the communication field, aiming to analyze and provide platforms that incorporate real-world system operations. Recently, SimEvents toolbox emerged as a promising tool for general simulation purposes in communication networks. An error control protocol, Stop-and-Wait (SW), is modeled and simulated to demonstrate the efficiency of SimEvents. By being able to construct a novel control unit to manage packet flow for SW ARQ, the performance of an SW protocol is accurately evaluated under different scenarios. The results show that SimEvents provides an extremely useful tool to shed light on many aspects of network performance such as queuing, throughput and delay. The toolbox is an extremely useful addition to the assessment of the performance of communication networks.