Adaptive interest adjustment in CCN flow control
Adaptive interest adjustment in CCN flow control
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DOI：
10.1109/glocom.2014.7037081
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发表时间：
2014-12
期刊：
影响因子：
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通讯作者：
Dojun Byun;Byoung-joon Lee;Yongseok Park
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文献类型：
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作者：
Dojun Byun;Byoung-joon Lee;Yongseok Park
我们提出了一种自适应兴趣（或内容请求消息）调整方案，作为对[11]中描述的CCN（内容中心网络）流控制算法的额外增强，其中CCN的一对一消息交换性质被重新架构，以实现更有效的一对多消息交换。该方案自适应地确定连续的兴趣消息的最佳传输时间，从而有效地调整传输窗口的大小，以进一步提高链路利用率，同时保留减少兴趣消息的总数的好处。兴趣消息之间的该传输时间间隔的最优性是下行链路吞吐量的关键因素，特别是对于如蜂窝网络中的窄带上行链路，因为太频繁的兴趣消息传输可能导致上行链路拥塞，而太不频繁的传输也可能导致下行链路的利用不足。本文提出了一种最佳兴趣传输时间的自适应方案，该方案充分利用下行链路，同时最大限度地减少不必要的上行链路拥塞。在使用CCNx [10]开源代码构建的实验测试床中验证了所提出方案的性能。
We propose an adaptive Interest (or content request message) adjustment scheme as an additional enhancement to the CCN (Content-Centric Networking) flow control algorithm described in [11], where the one-to-one message exchange nature of CCN was re-architected to enable more effective one-to-many message exchange. The proposed scheme adaptively determines the optimal transmission time of successive Interest messages, thus effectively adjusts the transmission window size to further enhance link utilization while preserving the benefit of reducing the total number of Interest messages. The optimality of this transmission time interval between Interest messages is a critical factor to the downlink throughput especially with a narrowband uplink as in cellular network, because too frequent Interest message transmissions likely cause uplink congestion while too infrequent transmissions may also cause underutilization of the downlink. This paper proposes an adaptive scheme for optimal Interest transmission time that fully utilizes the downlink while minimizing the unnecessary uplink congestion. The performance of proposed scheme is validated in an experimental testbed built with the CCNx [10] open source code.