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Integrated Channel Sounding and Communication: Requirements, Architecture, Challenges, and Key Technologies

Nanhao Zhou, Chao Zou, Yu Zhou, Yanqun Tang, Xiaoying Zhang, Haoran Yin, Xuefeng Yin, Yuxiang Zhang, Dan Fei, Fan Jiang

Abstract

Channel models are essential for the design, evaluation, and optimization of wireless communication systems. The emerging space-air-ground-sea integrated network (SAGSIN), characterized by diverse service applications and extended-spectrum operations, places even greater demands on highly accurate channel models. However, conventional channel sounding is limited by generalized measurement campaigns, inadequate cross-band consistency, and insufficient real-time adaptability, making it unable to meet the needs of SAGSIN for scenario-specific and high-precision channel modeling. To address this challenge, we propose a novel technological framework, termed integrated channel sounding and communication (ICSC). By deeply integrating sounding and communication, the ICSC enables efficient and real-time acquisition of dynamic channel characteristics during communication processes, supporting fine-grained site- and scenario-specific measurements. Furthermore, leveraging artificial intelligence techniques, ICSC can identify channel conditions and adapt waveform parameters in real-time according to scenario variations, which in turn enhances communication performance. This article first introduces the fundamental principles of the ICSC framework, elaborates on its core concepts and key advantages, and demonstrates its feasibility through the development of an integrated verification system (IVS). Subsequently, the potential applications and opportunities of the ICSC are analyzed in depth, followed by a discussion of its future development directions and remaining challenges.

Integrated Channel Sounding and Communication: Requirements, Architecture, Challenges, and Key Technologies

Abstract

Channel models are essential for the design, evaluation, and optimization of wireless communication systems. The emerging space-air-ground-sea integrated network (SAGSIN), characterized by diverse service applications and extended-spectrum operations, places even greater demands on highly accurate channel models. However, conventional channel sounding is limited by generalized measurement campaigns, inadequate cross-band consistency, and insufficient real-time adaptability, making it unable to meet the needs of SAGSIN for scenario-specific and high-precision channel modeling. To address this challenge, we propose a novel technological framework, termed integrated channel sounding and communication (ICSC). By deeply integrating sounding and communication, the ICSC enables efficient and real-time acquisition of dynamic channel characteristics during communication processes, supporting fine-grained site- and scenario-specific measurements. Furthermore, leveraging artificial intelligence techniques, ICSC can identify channel conditions and adapt waveform parameters in real-time according to scenario variations, which in turn enhances communication performance. This article first introduces the fundamental principles of the ICSC framework, elaborates on its core concepts and key advantages, and demonstrates its feasibility through the development of an integrated verification system (IVS). Subsequently, the potential applications and opportunities of the ICSC are analyzed in depth, followed by a discussion of its future development directions and remaining challenges.
Paper Structure (22 sections, 5 figures, 1 table)

This paper contains 22 sections, 5 figures, 1 table.

Table of Contents

  1. Introduction
  2. Integrated Channel Sounding and Communication Framework
  3. Overall Principles
  4. Communication
  5. Channel Sounding and Modeling
  6. Intelligent Perception and Channel Maps
  7. ICSC Services
  8. Advantages of ICSC
  9. Acquisition of Real-Time CSI Data
  10. Fine-Grained Site- and Scenario-Specific Channel Sounding
  11. Real-Time Scenario Identification and Classification
  12. Real-Time Optimization of Communication Performance
  13. Demonstration of the Integrated Validation System for ICSC
  14. Potential Applications and Opportunities
  15. Channel Knowledge Maps
  16. ...and 7 more sections

Figures (5)

  • Figure 1: The framework of integrated channel sounding and communication.
  • Figure 2: The integrated validation system for ICSC architecture.
  • Figure 3: The visualization of different channels. (a)EPA channel. (b)TDL-C channel. (c)TDL-E channel.
  • Figure 4: Training results. (a)The SI training results. (b)The waveform decision training results.
  • Figure 5: The overall verification results of ICSC for the TDL-E channel.