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

TL;DR

This paper introduces the ICSC framework that integrates channel sounding and communication to enable real-time, scenario-specific, high-precision channel modeling for complex SAGSIN networks, leveraging AI for adaptive performance.

Contribution

The paper proposes a novel integrated framework combining channel sounding and communication, supported by AI, to improve real-time, scenario-specific channel modeling in complex networks.

Findings

Demonstrated feasibility through an integrated verification system

Enabled real-time adaptive waveform parameter optimization

Supported fine-grained, scenario-specific channel measurements

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.