資料命名網路中具QoS之即時性訊息傳輸機制

隨著通訊科技的發展，網路服務品質越來越重要，尤其是在生死攸關的災難管理中。但是隨著時間的推移，具有即時性的訊息傳輸在新的網路架構中仍然是一個挑戰。這篇論文提出了一種具時間性的訊息傳輸機制，此機制利用資料命名網路的特性，包含具有彈性的路由路徑計算和訊息暫存機制，來支援大型分散式系統。另外，透過資料命名網路和這篇論文提出的分散式的傳輸時間計算，可以將伺服器的負載分散到網路上。同時，此機制依據不同的截止期限區分訊息的優先度，並利用多層佇列儲存訊息。這篇論文也在此機制上實作了網路流量管理。透過這個機制，訊息傳輸系統可以傳遞具有即時性的訊息，並藉此提供較高的網路服務品質。

關鍵字

分散式系統；資料命名網路；網路服務品質；即時性；訊息傳輸

並列摘要

Quality of service in networks becomes more and more important as communication technologies develops, particularly in disaster management since it does matter to life and death. However, as time progresses, works about transmission with timeliness are still a challenge to be applied to new network architectures. We purposed a time-sensitive message delivery mechanism in this work, which take advantage of the features of named data networking (NDN), including flexible routing path selection and temporary data caching, to support large-scale distributed systems. Also, with a distributed transmission time computation method we purposed in this work and NDN, we are able to distribute the loads from servers to networks. Meanwhile, we prioritize messages based on their deadlines, and store messages in multilevel queue. We also implemented traffic shaping in this work. With this mechanism, a message delivery system used to deliver time-sensitive messages, and thus provides better quality of service.

並列關鍵字

Distributed system ； NDN ； Quality of service ； Timeliness ； Message Delivery

參考文獻

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[1] Intel edison—one tiny module, endless possibility. http://www.intel.com/