Evaluation of Focused Beam Routing Protocol on Delay Tolerant Network for Underwater Optical Wireless Communication

Abstract

AbstractRecently, underwater communication has been developing in many ways, such as wired communication, underwater acoustic communication (UAC), underwater radio wave wireless communication (URWC), underwater optical wireless communication (UOWC). The main issue in underwater communication is the communication interruption because signals are affected by various factors in underwater environment. Consequently, communication links are unstable and real time communication is almost impossible. Therefore, we considered combining both underwater communication and delay tolerant network technologies. In this paper, we present the evaluation of focused beam routing (FBR) protocol for UOWC in The ONE simulator for different FBR angles. The results show that the highest delivery probability is achieved for \(15^{\circ }\), while for angles over \(30^{\circ }\), the values drastically decreased, because of the short communication ranges. Furthermore, when we used narrow FBR angles, both latency and overhead decreased. From these results, we can claim that FBR protocol can be used for effective communication for UOWC.