- In today's world, optical networks are critical for providing fast and reliable communication in global backbone connections. Various study in the subject of QoS, WDM based multiplexing, which is beneficial to identify light path out of n number of paths has been done in optical networks for the efficiency enhancement. Our goal in this research is to improve QoS in a WDM-Optical network by adopting dynamic queue management in a virtual topology. With the use of a light route, wave division multiplexing in an optical network may send data from numerous sources to multiple destinations utilising separate channels. Due to the restricted capacity of fibre optical cable in the modern era of technology, network congestion is increasing day by day. In wired communication, the optical network is the most efficient mode of communication in terms of data delivery, throughput, and latency, among other factors. So, in this research, we use a dynamic queue in a virtual topology under WDM to tackle that problem. Every intermediary node in the dynamic queuing approach creates an incoming and outgoing queue for each linked connection. If a link is heavily used or a queue is almost full during real-time communication, the size of the queue for that connection is increased immediately, while the queue for other low-used related links in the same intermediate node is reduced accordingly. The proposed DQ-VTWDM (dynamic queue virtual topology virtual topology WDM) improves network efficiency. Network simulator-2 was used to simulate the network, with the input being a hybrid topology with a total of 49 (unidirectional) and 48 (bidirectional) physical links. We find that the new DQ-VTWDM approach delivers higher QoS in terms of number of data receives, percentage of data drop, delay, and percentage of data receives when compared to current VT-WDM....
Authors: Pushpendra Singh Tomar, Sunil Phulre, Manish Shrivastava.