Fair Caching Networks

Fair Caching Networks
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公平缓存网络

DOI:
10.1145/3453953.3453973
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发表时间:
2021
期刊:
ACM SIGMETRICS Performance Evaluation Review
影响因子:
--
通讯作者:
Yeh, Edmund
Yeh, Edmund
中科院分区:
--
文献类型:
--
作者:
Liu, Yuezhou;Li, Yuanyuan;Ma, Qian;Ioannidis, Stratis;Yeh, Edmund

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我们通过效用驱动的框架研究缓存网络中的公平内容分配策略,其中每个请求实现其缓存增益率的效用。由此产生的问题是NP-hard。子模块化允许我们设计一种确定性分配策略,其最优性保证因子任意接近1-1/e。当0 < α≤1时,我们进一步提出了一种随机化策略,该策略在期望上获得了改进的最优性保证(1 - 1/e)1-α。通过对合成和真实网络拓扑的广泛模拟,我们评估了我们提出的策略的性能,并讨论了公平性的影响。
We study fair content allocation strategies in caching networks through a utility-driven framework, where each request achieves a utility of its caching gain rate. The resulting problem is NP-hard. Submodularity allows us to devise a deterministic allocation strategy with an optimality guarantee factor arbitrarily close to 1-1/e. When 0 < α ≤ 1, we further propose a randomized strategy that attains an improved optimality guarantee, (1 - 1/e)1-α, in expectation. Through extensive simulations over synthetic and real-world network topologies, we evaluate the performance of our proposed strategies and discuss the effect of fairness.
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期刊: IEEE/ACM Transactions on Networking
影响因子: --
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