Bufferbloat mitigating scheme based on radio channel state information

doi:10.16511/j.cnki.qhdxxb.2018.25.014

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Abstract Bufferbloat occurs when excessive packets that exceed the network capacity are blocked in the buffer, which increases the network transmission latency. Cellular networks generally use a large buffer for network reliability, which further aggravates this problem. This paper gives a receive window adjustment scheme based on radio channel state information to mitigate bufferbloat in cellular networks. The scheme retrieves the available bandwidth at the receiver side from the radio channel state information. The effects of channel noise and the ACK self-clocking mechanism in the transmission control protocol are modeled by a Kalman filter to predict the available bandwidth. Then the send window size is adjusted according to the calculated receive window. The scheme performance was evaluated on a network simulation platform with the results indicating that this scheme significantly reduces the queue backlog and the latency while still maintaining the original high throughput than previous mechanisms

Keywords bufferbloat transmission control protocol (TCP) available bandwidth radio channel cellular network

Issue Date: 15 March 2018

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Cite this article:

LIU Xiaolan, SHU Ran, ZHANG Tong, REN Fengyuan. Bufferbloat mitigating scheme based on radio channel state information[J]. Journal of Tsinghua University(Science and Technology),2018, 58(3): 225-230.

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http://jst.tsinghuajournals.com/EN/10.16511/j.cnki.qhdxxb.2018.25.014 OR http://jst.tsinghuajournals.com/EN/Y2018/V58/I3/225

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