This research challenges the dominant paradigm in semantic communication by demonstrating that Separate Source Channel Coding (SSCC) is more effective than Joint Source Channel Coding (JSCC) when used with Large Language Models.

• SSCC achieves superior performance in information transfer across noisy channels
• Leverages Error Correction Code Transformers to enhance communication reliability
• Provides a more efficient framework for semantic communication systems
• Demonstrates practical engineering advantages in real-world communication scenarios

For engineering teams, this research offers an optimized approach to build more reliable and efficient communication systems that maintain semantic integrity even in challenging conditions.

Separate Source Channel Coding Is Still What You Need: An LLM-based Rethinking