경로생성 및 지형차폐를 고려한 통신영역 생성 방법 = Research of Communication Coverage and Terrain Masking for Path Planning

다국어 초록 (Multilingual Abstract)

Recent complex battle field demands Network Centric Warfare(NCW) ability to control various parts into a cohesive unit. In path planning filed, the NCW ability increases complexity of path planning algorithm, and it has to consider a communication coverage map as well as traditional parameters such as minimum radar exposure and survivability. In this paper, pros and cons of various propagation models are summarized, and we suggest a coverage map generation method using a Longley-Rice propagation model. Previous coverage map based on line of sight has significant discontinuities that limits selection of path planning algorithms such as Dijkstra and fast marching only. If there is method to remove discontinuities in the coverage map, optimization based path planning algorithms such as trajectory optimization and Particle Swarm Optimization(PSO) can also be used. In this paper, the Longley-Rice propagation model is used to calculate continuous RF strengths, and convert the strength data using smoothed leaky BER for the coverage map. In addition, we also suggest other types of rough coverage map generation using a lookup table method with simple inputs such as terrain type and antenna heights only. The implemented communication coverage map can be used various path planning algorithms, especially in the optimization based algorithms.

참고문헌 (Reference)

1 김재민, "해상환경에서의 수신 신호세기 예측을 통한 포물선 궤적 비행체의 Two-Ray 전파손실 극복" 한국통신학회 42 (42): 1306-1315, 2017

2 A. Grancharova, "UAVs Trajectory Planning by Distributed MPC under Radio Communication Path Loss Constraints" 79 (79): 115-134, 2015

3 P. Ladosz, "Trajectory Planning for Communication Relay Unmanned Aerial Vehicles in Urban Dynamic Environments" 89 (89): 7-25, 2018

4 J. S. Lu, "The Influence of Terrain Scattering on Radio Links in Hilly/Mountainous Regions" 61 (61): 1385-1395, 2013

5 C. Kwan-Wu, "The Behavior of MANET Routing Protocols in Realistic Environments" 906-910, 2005

6 J. D. Park, "Spectrum Management System Development Trend" 44 (44): 18-, 2017

7 S. Tom, "Safe Trajectory Planning of Autonomous Vehicles" Massachusetts Institute of Technology 2006

8 E. I. Grøtli, "Path Planning for UAVs Under Communication Constraints Using SPLAT! and MILP" 65 (65): 265-282, 2012

9 L. F. Perrone, "Modeling and Simulation Best Practices for Wireless Ad Hoc Networks" 1 : 685-693, 2003

10 D. J. Thuente, "Methodology and Ground Rules for Simulating Airborne Military Communication Systems" 2 : 1061-1080, 2004

11 S. Demers, "MANETs: Perfrormance Analysis and Management" 1-7, 2006

12 R. C. Arkin, "Line-of-Sight Constrained Exploration for Reactive Multiagent Robotic Teams" 455-461, 2002

13 C. M. Durham, "Evaluation of an OPNET Model for Unmanned Aerial Vehicle(UAV) Networks" 1 (1): 1-8, 2009

14 S. M. Al-Shehri, "Enabling Connectivity for Tactical Networks in Mountainous Areas by Aerial Relays" 71 (71): 561-575, 2019

15 S. Kasampalis, "Comparison of Longley-Rice, ITM and ITWOM propagation models for DTV and FM broadcasting" 1-6, 2013

16 D. Ho, "Cluster-based Communication Topology Selection and UAV Path Planning in Wireless Sensor Networks" 59-68, 2013

17 L. Hogie, "An Overview of MANETs Simulation" 150 (150): 81-101, 2006

18 M. K. Hoga, "Advanced Mission Planning Tool For Real-Time Kinematic (RTK) GPS Surveying" 61 (61): 480-488, 2005