The smart cities provide a better connection between services and citizens based on new Internet technologies. During the building process of smart cities, some burgeoning applications have been emerging and changing the daily lifestyle of people, e.g., live streaming applications. Especially, the live-soccer event applications have attracted much attention and can improve people’s enjoyment of life to a great extent, such as the Europe five major league matches and FIFA world cup. For such applications, the traditional routing strategies cannot do Quality-of-Service (QoS) awareness, and thus, the network performance and the Quality of Experience (QoE) of users cannot be guaranteed. In this paper, we employ Software-Defined Networking (SDN) to make QoS awareness for the special live-soccer event applications, in which the QoS-aware routing mechanism is proposed, called LSEA. Meanwhile, delay, delay jitter, and packet loss rate are considered as three objects. On this basis, the improved Dijkstra routing algorithm and SDN-based disjoint routing algorithm are devised. Finally, the proposed LSEA is implemented over Mininet, and the experimental results demonstrate its feasibility and efficiency.

中文翻译：

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LSEA：智能城市中实时足球赛事应用的基于软件定义网络的QoS感知路由机制

智慧城市基于新的互联网技术，在服务和市民之间提供了更好的连接。在智慧城市的建设过程中，一些新兴的应用程序不断涌现并改变了人们的日常生活，例如实时流媒体应用程序。尤其是现场足球赛事的应用引起了人们的广泛关注，可以极大地改善人们的生活享受，例如欧洲五项大型联赛和FIFA世界杯。对于此类应用，传统的路由策略无法做到服务质量（QoS）意识，因此无法保证用户的网络性能和体验质量（QoE）。在本文中，我们采用软件定义网络（SDN）为特殊的现场足球事件应用程序提供QoS意识，其中提出了QoS感知路由机制，称为LSEA。同时，延迟，延迟抖动和丢包率被认为是三个对象。在此基础上，设计了改进的Dijkstra路由算法和基于SDN的不相交路由算法。最后，本文提出的LSEA是在Mininet上实现的，实验结果证明了其可行性和有效性。