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Full-Duplex Multi-Hop Wireless Networks Optimization with Successive Interference Cancellation.

Lei Shi1, Zhehao Li2, Xiang Bi3

  • 1School of Computer Science and Information Engineering, Hefei University of Technology, Hefei 230601, China. shilei@hfut.edu.cn.

Sensors (Basel, Switzerland)
|December 20, 2018
PubMed
Summary

This study introduces a new algorithm for full-duplex successive interference cancellation (FD-SIC) wireless networks to boost throughput. The proposed method enhances network performance compared to existing techniques.

Keywords:
in-band full-duplexinterference managementmulti-hop wireless networksuccessive interference cancellation

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Area of Science:

  • Wireless Communication Engineering
  • Network Optimization
  • Signal Processing

Background:

  • In-band full-duplex is crucial for enhancing wireless network throughput but requires specific environmental conditions.
  • Successive Interference Cancellation (SIC) enables simultaneous data reception from multiple transmitters, facilitating the practical use of full-duplex.
  • Existing methods for full-duplex networks often face limitations in throughput maximization.

Purpose of the Study:

  • To propose an optimal algorithm for maximizing throughput in full-duplex multi-hop wireless networks utilizing successive interference cancellation (FD-SIC).
  • To address the NP-hard nature of throughput optimization in these networks.
  • To introduce a novel heuristic algorithm for routing and transmission schemes in FD-SIC networks.

Main Methods:

  • Development of a mathematical model for FD-SIC wireless networks.
  • Identification of the problem's NP-hard complexity.
  • Proposal of a heuristic algorithm named use-up-link-capacity iterative (UULC-iterative) for node routing and transmission schemes.

Main Results:

  • The mathematical model for FD-SIC wireless networks is established.
  • The UULC-iterative algorithm is presented as a solution for routing and transmission.
  • Simulations demonstrate superior throughput for FD-SIC networks using the proposed algorithm compared to SIC-only and interference avoidance networks.

Conclusions:

  • The proposed UULC-iterative algorithm effectively increases throughput in FD-SIC wireless networks.
  • FD-SIC networks, optimized with the UULC-iterative algorithm, outperform traditional SIC-only and interference avoidance networks.
  • The research provides a viable solution for practical implementation of high-throughput full-duplex wireless communication.