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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.
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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.
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Capacity Performance for Full-Duplex Multihop Wireless Networks Using Channel Interference Balancing Allocation

Aung Thura Phyo Khun1, Yuto Lim1, Stepan Kucera2

  • 1Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi City 923-1292, Ishikawa, Japan.

Sensors (Basel, Switzerland)
|May 20, 2022
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Summary
This summary is machine-generated.

This study introduces a Channel Interference Balancing Allocation (CIBA) scheme to maximize capacity in full-duplex (FD) multihop wireless networks. CIBA balances interference power across sub-channels, improving overall network performance.

Keywords:
cooperative transmissionfull-duplex systeminterference-aware channel allocationmultihop wireless network

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Area of Science:

  • Wireless communication networks
  • Spectrum utilization
  • Signal processing

Background:

  • Full-duplex (FD) communication is crucial for enhancing spectrum utilization in wireless networks.
  • Prior research on FD systems focused on self-interference cancellation and power control in low-power scenarios.
  • Capacity maximization in FD multihop networks faces challenges due to imbalanced interference from multi-channel allocation.

Purpose of the Study:

  • To maximize the capacity of full-duplex (FD) systems in multihop wireless networks.
  • To address the challenge of imbalanced interference power across sub-channels caused by simultaneous transmissions.
  • To propose a novel scheme for balancing total interference power in multi-channel FD multihop networks.

Main Methods:

  • Developed a Channel Interference Balancing Allocation (CIBA) scheme.
  • Investigated CIBA using cooperative transmission strategies.
  • Employed the concept of 'interference distance' to mitigate interference balancing issues.

Main Results:

  • The proposed CIBA scheme effectively balances total interference power across sub-channels.
  • CIBA leads to a minimum difference in total interference power among sub-channels.
  • Performance evaluations show CIBA achieves lower total interference and higher capacity compared to fixed allocation schemes.

Conclusions:

  • The CIBA scheme offers a viable solution for capacity maximization in FD multihop wireless networks.
  • Balancing interference power is critical for improving the efficiency of multi-channel FD systems.
  • The CIBA scheme, enhanced by 'interference distance', demonstrates superior performance in reducing interference and increasing achievable capacity.