Tóm tắt luận văn Thạc sĩ: Nghiên cứu giải pháp CDN nâng cao chất lượng dịch vụ OTT Streaming áp dụng cho Đài truyền hình Kỹ thuật số VTC

The rapid proliferation of broadband Internet has catalyzed a significant shift from traditional cable television to Over-The-Top (OTT) Streaming, positioning Vietnam as a dynamic and promising market for this service. However, leading providers like VTC Television are encountering critical challenges, including bandwidth limitations leading to reduced video quality, frequent buffering, and device incompatibility. These issues directly impede user experience and hinder competitive growth. Given the escalating user demand for superior service quality in digital broadcasting, a comprehensive study focusing on CDN solutions is imperative. This research aims to address these critical service quality impediments, thereby enabling VTC to enhance its OTT Streaming capabilities and maintain a strong competitive edge in the evolving media landscape.

Các kỹ sư viễn thông, chuyên gia mạng, nhà nghiên cứu công nghệ truyền thông và các nhà quản lý dịch vụ truyền hình kỹ thuật số.

This academic work investigates advanced CDN solutions to significantly enhance the quality of OTT Streaming services provided by VTC Television. The study meticulously outlines the current challenges faced by VTC, such as insufficient bandwidth, video buffering, and compatibility issues, all of which detract from the user's viewing experience. The research first establishes the critical importance of service quality in OTT Streaming, defining key metrics like Quality of Service (QoS) – encompassing bandwidth, latency, packet loss, connection stability, and jitter – and Quality of Experience (QoE), which includes image/sound quality and buffering. Subsequently, the paper thoroughly introduces the concept and architecture of Content Delivery Networks (CDN), elaborating on its underlying principles, such as routing, content replication (caching), and load balancing across globally distributed Points of Presence (PoPs). By leveraging these CDN techniques, the proposed solutions aim to optimize content delivery paths, minimize network congestion, and reduce the load on origin servers. This strategic implementation is expected to result in faster content loading, substantial improvements in user experience through reduced buffering and enhanced video clarity, and operational efficiencies for VTC, including potential bandwidth cost savings. The findings of this research offer valuable insights for telecommunications engineers, network strategists, and media professionals, providing a robust framework for improving the reliability and competitiveness of live online television services in Vietnam's dynamic digital landscape.