Problem Statement and Motivation
Directional Radio Frequency (RF) / Free-Space-Optical (FSO) transceivers have the potential to play a significant role in future generation wireless networks. They are advantageous in terms of improved spectrum utilization, higher data transfer rate, and lower probability of interception from unwanted sources. Despite these advantages, communications using directional transceivers require establishment and maintenance of line-of-sight (LOS). Thus, establishment of the communication link or neighbor discovery plays an important role in mobile ad hoc networks with RF/FSO directional transceivers. We consider two nodes (Unmanned Aerial Vehicles (UAVs) or Quadcopters) hovering in 3D space, each with one directional transceiver mounted on a mechanically steerable spherical structure/head, with which they can scan 360o in the horizontal plane and 360o in the vertical plane. We propose a novel scheme that deals with the problem of automatic discovery and establishment of LOS alignment between these nodes.
- Dr. Murat Yuksel (University of Central Florida)
- Dr. Shamik Sengupta (University of Nevada, Reno)
- Suman Bhunia (University of Nevada, Reno)
- Mahmudur Khan (University of Central Florida)
The effectiveness of the proposed method is evaluated through a prototype, built using off the shelf hardware. The details about the prototype can be found in the paper.
MR Khan, S Bhunia, M Yuksel, L Kane, “Line-of-Sight Discovery in 3D Using Highly Directional Transceivers”, in IEEE Transactions on Mobile Computing, vol. 18, no. 12, pp. 2885-2898, 2019, DOI:10.1109/TMC.2018.2885061.
S Bhunia, M R Khan, M Yuksel, S Sengupta, “In-Band LOS Discovery Using Highly Directional Transceivers”, Ad Hoc Networks, Volume 91, 2019 DOI:10.1016/j.adhoc.2019.101875