Related Experiment Video
Updated: Jan 13, 2026
05:30
Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
Published on: September 8, 2023
1.1K
Rate-Splitting-Based Resource Allocation in FANETs: Joint Optimization of Beam Direction, Node Pairing, Power and
Fukang Zhao1, Chuang Song2, Xu Li1
1School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044, China.
Sensors (Basel, Switzerland)
|January 10, 2026
Summary
This study introduces a new resource allocation framework for directional flying ad hoc networks (FANETs) using intra-beam rate-splitting. The method significantly reduces transmission time slots and latency for high-capacity, low-latency FANET communications.
Area of Science:
- Wireless communication networks
- Network resource allocation
- Antenna theory and applications
Background:
- Directional flying ad hoc networks (FANETs) with phased array antennas are crucial for high-capacity, low-latency communication.
- Existing resource allocation methods, like conventional physical-layer multiple access (CPMA) and rate-splitting multiple access (RSMA), have limitations in optimizing directional FANETs due to beam-based scheduling constraints.
- Joint optimization of beam direction, power, and time-slot scheduling under hardware constraints is complex and underexplored in directional FANETs.
Purpose of the Study:
- To introduce an intra-beam rate-splitting-based resource allocation (IBRSRA) framework for directional FANETs.
- To address the challenge of jointly optimizing beam direction, node pairing, power control, modulation and coding scheme (MCS) selection, and time-slot scheduling.
- To minimize the total number of time slots required for data transmission in directional FANETs.
Main Methods:
- Formulation of an optimization problem for joint resource allocation in directional FANETs.
- Development of a two-stage algorithm combining greedy scheduling and successive convex approximation (SCA) to solve the mixed-integer nonlinear programming (MINLP) problem.
- Integration of constrained rate-splitting (CRS) into the intra-beam resource allocation design.
Main Results:
- The proposed IBRSRA algorithm substantially enhances spectral efficiency and reduces communication latency.
- Simulation results show a significant reduction in the number of transmission time slots required.
- For a network with 16 nodes, IBRSRA reduced transmission time slots by over 42% compared to baseline schemes.
Conclusions:
- The IBRSRA framework effectively optimizes resource allocation in directional FANETs.
- Integrating constrained rate-splitting (CRS) offers significant practical benefits for directional FANETs.
- The developed algorithm provides a computationally efficient solution for complex optimization problems in FANETs.
Related Concept Videos
01:23Maximum Power Flow and Line Loadability
581
The maximum power flow for lossy transmission lines is derived using ABCD parameters in phasor form. These parameters create a matrix relationship between the sending-end and receiving-end voltages and currents, allowing the determination of the receiving-end current. This relationship facilitates calculating the complex power delivered to the receiving end, from which real and reactive power components are derived.
581
01:17Beams with Unsymmetric Loadings
392
Analyzing a supported beam under unsymmetrical loadings is essential in structural engineering to understand how beams respond to varied force distributions. This analysis involves calculating the deflection and identifying points where the slope of the beam is zero, which are crucial for ensuring structural stability and functionality.
The first moment-area theorem determines the slope at any point on the beam. This theorem indicates that the change in slope between two points on a beam...
The first moment-area theorem determines the slope at any point on the beam. This theorem indicates that the change in slope between two points on a beam...
392
01:15Beams with Symmetric Loadings
378
The moment-area method is an analytical tool used in structural engineering to determine the slope and deflection of beams under various loads. Consider a cantilever with a concentrated load and moment at the free end. The first step is constructing a free-body diagram to calculate the reactions at the fixed end. Next, the bending moment diagram is plotted to visualize how the bending moment varies along the beam's length, focusing on points where the bending moment equals zero.
The M/EI...
The M/EI...
378
01:14Shearing Stresses in a Beam: Problem Solving
601
A cantilever beam with a rectangular cross-section under distributed and point loads experiences shearing stresses. The analysis begins by identifying the loads acting on the beam. Then, the reactions at the beam's fixed end are calculated using equilibrium equations. The vertical reaction is a combination of the distributed and point loads, while the moment reaction is the sum of their moments. The shear force distribution along the beam, resulting from these loads, is established by creating...
601
01:16Maximum Power Transfer
813
Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
By substituting the entire circuit with...
By substituting the entire circuit with...
813
01:10Interpreting ¹H NMR Signal Splitting: The (n + 1) Rule
2.4K
In the AX proton spin system, proton A can sense the two spin states of a coupled proton X, resulting in a doublet NMR signal with two peaks of equal (1:1) intensity. When proton A is coupled to two equivalent protons (AX2 spin system), the spin states of each X can be aligned with or against the external field, creating three possible scenarios. This results in a 1:2:1 triplet signal, where the central peak corresponds to the chemical shift of A and is twice as large or intense as the...
2.4K