New Routing Protocol for Half-Duplex Cognitive Radio Ad-Hoc Networks over IoT Environment

In this paper, we consider non-time slotted cognitive radio ad-hoc networks in order to propose a routing protocol without a common control channel, thereby adhering to practicality. This is performed using multicast and unicast transmission of the control packets. The performance of this protocol is studied and compared with a quite relevant and recent protocol, called Probabilistic and Deterministic Path Selection (PDPS), using a special simulator, which is built in Java language and developed upon PDPS's simulator. The PDPS protocol creates two paths between the source and destination while using all the channels in the network. Interestingly, their results are promising in terms of throughput. On the other hand, our protocol builds as many paths as possible between the source and destination. Besides, in our protocol, we use all the channels in the network. The performance metric considered is the throughput whereas our results are even better than those of PDPS protocol.