網際網路已成為現代生活中不可或缺的一部分。隨著科技的快速發展，當代的網際網路使用模式正逐漸走向以內容為中心的規範，用戶更加重視內容的存取，而非其實際位置。這一轉變促進了資訊中心網路(Information-Centric Networking,ICN)這一新型架構的發展，其核心目標是實現高效的內容分發。命名資料網路(NamedData Networking,NDN)為ICN的一個重要候選技術，帶來了網內快取和強大的安全機制等關鍵特性。然而，從成熟的TCP/IP通訊協定過渡到NDN仍面臨諸多挑戰，包括需要網路服務提供商(ISPs)進行大規模基礎設施升級，以及對應用程式代碼進行大量修改以實現相容性。
為了解決這些挑戰並平穩過渡，本研究提出了一種混合快取感知代理(Hybrid Cache-Aware Proxy,HCAP)，這是一種應用層代理，能夠在不修改現有協議的情況下實現基於TCP/IP的應用與NDN的無縫整合。透過利用NDN的快取功能，HCAP提升了資料傳輸效率。實驗結果顯示，HCAP在快取未命中情境下的吞吐量超越了代理的基線，在快取命中情境下的吞吐量更是提高了近七倍。此外，HCAP消除了對已快取內容的傳出流量，降低了網路負載並顯著提升了效能。

The Internet have become indispensable to modern life. With the rapid evolution of technology, contemporary Internet usage has shifted toward content-centric paradigms where users prioritize accessing content over its physical location. This shift has driven the development of Information-Centric Networking (ICN), a novel architecture focused on efficient content distribution. Named Data Networking (NDN), a leading ICN candidate, introduces key features such as in-network caching and robust security mechanisms. However, transitioning from the well-established TCP/IP protocol stack to NDN poses significant challenges, requiring major infrastructure upgrades by ISPs and substantial modifications to application codebases for compatibility.
To address these challenges and facilitate a smooth transition, this study introduces Hybrid Cache-Aware Proxy (HCAP), an application-layer proxy designed to enable seamless integration of TCP/IP applications over NDN without modifying existing protocols. By leveraging NDN's caching capabilities, HCAP enhances data transmission efficiency. Experimental results show that HCAP outperforms baseline proxies, achieving higher throughput in cache-miss scenarios and nearly sevenfold increases in throughput during cache-hit scenarios. Additionally, HCAP eliminates outgoing traffic for cached content, reducing network load and significantly improving overall performance.

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