论文标题
年龄敏感的流量和高通量流的共存：优先级排序有帮助吗？
Coexistence of Age Sensitive Traffic and High Throughput Flows: Does Prioritization Help?
论文作者
论文摘要
我们研究了高吞吐量流量与状态更新流的共存，需要及时提供更新。这些流的混合物共享端到端路径，其中包括WiFi访问网络，然后在云中使用Internet上的路径。使用现实世界实验，我们表明网络中常用的优先排序方法（在802.11 MAC层的IP层和EDCA的DSCP方法）非常有效地在隔离状态更新流量中与没有WiFi访问竞争的高吞吐量流的影响，在没有WiFi访问竞争的情况下，当所有流量从同一wifi client中均来自同一wifi client。但是，在存在吞吐量和状态更新流动的wifi中，优先级并不那么有效。这会导致优先级状态更新流动到目标服务器上的信息年龄，该信息与所有流相同的优先级时大致相同。
We study the coexistence of high throughput traffic flows with status update flows that require timely delivery of updates. A mix of these flows share an end-to-end path that includes a WiFi access network followed by paths over the Internet to a server in the cloud. Using real-world experiments, we show that commonly used methods of prioritization (DSCP at the IP layer and EDCA at the 802.11 MAC layer) in networks are highly effective in isolating status update flows from the impact of high throughput flows in the absence of WiFi access contention, say when all flows originate from the same WiFi client. Prioritization, however, isn't as effective in the presence of contention that results from the throughput and status update flows sharing WiFi. This results in prioritized status update flows suffering from a time-average age of information at the destination server that is about the same as when all flows have the same priority.
