Heterogeneous content-based traffic distribution motivates Information-Centric Networking (ICN), where content delivery is of primary interest as a prominent solution. However, current work does not address Quality of Service (QoS) provisioning for prioritized traffic, which is required for different applications and content types. This paper extends ICN with data delivery deadline awareness and shapes the forwarding decisions to ensure prioritized packet treatment. The proposed QoS Aware-ICN (QoSA-ICN) classifies requests' priority with their QoS requirements by codifying a QoSInfo object in interest/data packets. QoSA-ICN also extends the existing NDN transmission mode to a converged best route with multi-hop multi-route forwarding, to avoid the overhead of pre-building routes in rapidly changing and dynamic environments. Furthermore, this work expands the network traffic control mechanism to optimally manage the potential impact of QoS on network congestion control. Extensive simulations results show a 3.5x and 1.2x improvement in data delivery time; and 13.5x and 4.6x reduction in packet loss when compared to DRSC-based native IP and NDN approaches, in networks of different sizes. Through simulations, we also found that QoSA-ICN reduces overall content retrieval time and packet loss while achieving a high ratio of successfully-received priority packets as compared to the existing techniques T-Move, MAP-Me and pNDN.

基于异类内容的流量分配推动了以信息为中心的网络（ICN）的发展，在该网络中，以内容交付为主要目的是一个突出的解决方案。但是，当前的工作并未解决针对优先流量的服务质量（QoS）设置的问题，这是不同应用程序和内容类型所必需的。本文扩展了ICN的数据交付期限意识，并制定了转发决策，以确保优先处理数据包。拟议的QoS Aware-ICN（QoSA-ICN）通过对QoSInfo进行分类，将请求的优先级与其QoS要求进行分类感兴趣的对象/数据包。QoSA-ICN还将现有的NDN传输模式扩展到具有多跳多路由转发的聚合最佳路由，从而避免了在快速变化和动态环境中预先构建路由的开销。此外，这项工作扩展了网络流量控制机制，以最佳地管理QoS对网络拥塞控制的潜在影响。大量的仿真结果表明，数据传递时间分别缩短了3.5倍和1.2倍。与基于DRSC的本机IP和NDN方法相比，在不同规模的网络中，数据包丢失减少了13.5倍和4.6倍。通过仿真，我们还发现，与现有技术T-Move，MAP-Me和pNDN相比，QoSA-ICN减少了整体内容检索时间和数据包丢失，同时实现了成功接收优先级数据包的高比例。