Full duplex directional Radio Frequency (RF)/Free-Space-Optical (FSO) transceivers are envisioned to play a great role in future generation wireless networks. They provide benefits in terms of better throughput, enhanced spectrum utilization and lower interference from unwanted sources. However, the stringent requirement of line-of-sight (LOS) communication makes it tough for a mobile node to maintain a link without apriori information about its neighbor’s position. Hence, neighbor discovery takes a very crucial role in mobile ad hoc networks with directional transceivers. In this paper, we focus on neighbor discovery using full duplex directional transceivers. We consider two nodes that can discover each other by steering their transceivers with a randomly chosen angular speed and performing a simple three way handshaking protocol.We provide a theoretical analysis of the proposed neighbor discovery method. Additionally, we propose an algorithm where each node chooses its transceiver’s angular speed and renews it if the neighbor is not discovered within an optimal time interval. We evaluate the algorithm via simulations and show its effectiveness under various scenarios.
Conrad, Mitchell, Brody Hageneder, Michael Geyer, Deborah Amao, James Moscola, and Mahmudur Khan. "Reliable Communication in a Computer Vision Enhanced Free-Space-Optical Mobile Network." Proceedings of IEEE International Conference on Computing and Information Technology (ICCIT), Pages 1-6, 1944-1949, Cox's Bazar, Bangladesh, December 2024
Gartrell, Riely, Ryan Black, Kyle Bush, Mahmudur Khan, James Moscola, and Joshua Gilbery. "Reliable Communication in a Multi-Transceiver Mobile Optical Wireless Network." Accepted, IEEE Military Communications Conference (MILCOM), Boston, Massachusetts, October-November 2023.
Vazquez-Estrada, Jessica, Suman Bhunia, Mahmudur Khan, Yicheng Qian, and Nero Tran Huu. "Neighbor Discovery in a LoRa Assisted Multi-Transceiver Free-Space-Optical Network." Proceedings of IEEE Wireless Communications and Networking Conference (WCNC), Pages 2703-2708, Austin, Texas, April 2022.
Vazquez-Estrada, Jessica, Suman Bhunia, Mahmudur Khan, Yicheng Qian, and Nero Tran Huu. "Neighbor Discovery in a Multi-Transceiver Free-Space-Optical Ad Hoc Network." Proceedings of the 19th IEEE Annual Consumer Communications & Networking Conference (CCNC), Pages 509-510, Las Vegas, NV, USA, January 2022.
Bhunia, Suman, Khan, Mahmudur, Murat Yuksel, and Shamik Sengupta. "In-Band LOS Discovery Using Highly Directional Transceivers." Elsevier Ad Hoc Networks, 101875, May 2019.
Bhunia, Suman, Mahmudur Khan, Shamik Sengupta, and Murat Yuksel. "LOS Discovery for Highly Directional Full Duplex RF/FSO Transceivers." Proceedings of IEEE Military Communications Conference (MILCOM), Pages 325-330, Baltimore, MD, USA, November 2016.