Self-secure feedback control based scheme for ultra-reliable and low-latency communication

Area of Science:

• Wireless communication systems
• Information theory
• Coding theory

Background:

• Ultra-reliable and low-latency communication (URLLC) is crucial for future wireless networks.
• Simultaneous transmission of URLLC and enhanced mobile broadband (eMBB) messages over shared channels presents interference challenges.
• Existing coding designs for URLLC often treat eMBB signals as noise, degrading performance.

Purpose of the Study:

• To develop a novel coding scheme for URLLC message transmission in the presence of eMBB interference.
• To investigate the potential of feedback control mechanisms in mitigating interference and enhancing URLLC performance.
• To assess the physical layer security implications of the proposed coding scheme.

Main Methods:

• The study proposes a feedback control-based coding scheme for URLLC messages over additive white Gaussian noise (AWGN) channels.
• The scheme leverages noise-free channel feedback to actively manage interference from simultaneously transmitted eMBB codewords.
• Theoretical analysis is supported by numerical examples to demonstrate the scheme's effectiveness.

Main Results:

• The proposed scheme effectively eliminates interference caused by eMBB codewords for URLLC messages.
• The coding scheme approaches the theoretical maximum rate for URLLC messages as codeword length increases.
• The scheme inherently satisfies physical layer security requirements, functioning as a self-secure system.

Conclusions:

• A feedback control-based coding scheme offers a viable solution for interference-free URLLC transmission alongside eMBB data.
• The proposed method achieves high URLLC rates and inherent security, addressing key challenges in wireless communication.
• This research provides a pathway for designing efficient and secure coding schemes for next-generation wireless systems.