Content based routing algorithm to improve QoS in IoMT networks

Abstract

The IoT combines the MANETs and WSNs, as it includes the nodes which are stationary as well as dynamic in nature. The nodes in IoT network may comprise of vehicles, smart devices, sensors, net- works, other smart objects etc. This intercommunication between the things also brings various routing challenges which may be posed during the transmission of data. The data to be transmitted may not always be scalar as in WSN but may be audio, video, image, text or multimedia as in WMSN (Wireless Multimedia Sensor Network). The successor of WSN is WMSN and the transmission of multimedia content in IoT leads to the emergence of IoMT (Internet of Multimedia Things) networks. QoS is extremely important during the transmission and the quality of the path is calculated on the basis of noise on the channel. The congestion has always been considered as the main cause of the packet loss and delay in the transmission. The paper proposes the algorithm, CARA-IoT which finds the reliable intelligent path which is also content aware. The path is established using ACO (AntColony Optimization) approach, content is checked and suitability of the routing path is confirmed. And finally, the best intelligent reliable routing path is chosen, firstly based on the noise present on the channel and secondly on the basis of the content to be communicated.