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TCP incast problem has become a severe problem in datacenters due to the catastrophic collapse of goodput at the receiver side. Many solutions have been proposed, however, none of them solved it fundamentally. In this paper, we take a deep dive into the causes of incast problem, and find out that the root cause of TCP incast is the droptails induced by TCP congestion control algorithm based on packet...
TCP incast problem has become a severe problem in datacenters due to the catastrophic collapse of goodput at the receiver side. Many solutions have been proposed, however, none of them solved it fundamentally. In this paper, we take a deep dive into the causes of incast problem, and find out that the root cause of TCP incast is the droptails induced by TCP congestion control algorithm based on packet...
The traditional adaptive Random Early Detection (RED) algorithm allows network to achieve high throughput and low average delay. However it uses a linear dropping probability function, which causes high jitter in the core router. To overcome the drawbacks of queue jitter in the traditional adaptive RED algorithm, this paper proposes a new Non-Linear Adaptive RED (NLAR) approach based on the Active...
In this paper, we present a novel diffusion maps based semi-supervised algorithm for dimensionality reduction and data parameterization. Unlike previous works which use only geometric information for similarity metric construction, a distribution similarity metric is introduced to boost the classification accuracy in our algorithm. The metric is related to the posterior probability of the labels of...
In multi-target hospital illness tracking, for data fusion, data with noise as input must be sent to fusion center to be filtered, associated, combined and made final decision as output. In this paper, an efficient fuzzy fusion approach for hospital illness tracking is proposed. The proposed approach is developed based on the fuzzy clustering means algorithm, which differs from many other fuzzy logic...
This paper proposes a distributed energy-efficient routing algorithm for mobile Ad Hoc networks (MANETs). We adopt the cross-layer design paradigm. The distance from the source node to the destination node is estimated based on the received signal strength indication (RSSI) of the packets and is used to adaptively adjust the backoff time of the MAC layer. A distance threshold and a packet count threshold...
In order to achieve the accurate traffic control of P2P in application layer, a bypass mechanism for P2P control is proposed, which first estimates the packets rates by the TSW (Time Sliding Window) rate estimator and then blocks certain sessions by some strategies. Based on a large number of experiments and theoretical analysis, this paper discusses the appropriate value of the time sliding window...
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