FLORAX-flow-rate based hop by hop backpressure control for IEEE 802.3x

Lee, D.; Coleri, S.; Dong, Xuanming; Ergen, Mustafa

doi:10.1109/hsnmc.2002.1032576

Cited by 4 publications

(8 citation statements)

References 2 publications

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“…In the half-duplex mode, the receiver sends a jamming signal to the upstream, and the sender assumes that the channel is busy and stops the transmission. However, in the full-duplex mode, the media access control (MAC)-level flow control mechanism is used to send a signal frame that contains the buffer occupancy information [1,[3][4][5][6]30]. When the sender receives a signal from the receiver, the sender responds based on the applied scheme.…”

Section: Hop-by-hop and End-to-end Flow Controlmentioning

confidence: 99%

“…Furthermore, IEEE 802.3x creates a dominos effect and congestion propagates backward up to the source node as discussed in Section 3. IEEE 802.3x is therefore unsuitable for carrying multiple traffic flows that require different QoS [1,4,6,46].…”

Section: Cn Schemesmentioning

confidence: 99%

“…Therefore, a buffer must have some space left when it instigates a pause frame so that it can accommodate the incoming data until the pause actually occurs. The incoming data between pause initiated and pause actually occurs is calculated in (1). Now the pause threshold for each CoS buffer (P th ) must be calculated.…”

Section: Hop-by-hop Buffer Threshold Challengesmentioning

confidence: 99%

“…The architectures of data centres in the present wireless and mobile age are still based on wired Ethernet. IEEE 802.3 Ethernet is traditionally regarded as an unreliable networking technology in most applications because it does not guarantee the delivery of packets to their destinations [1][2][3][4]. Reliable network architecture consists of an infrastructure that is responsible for the reliability provision of injected packets in the network.…”

Section: Introductionmentioning

confidence: 99%

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Comparative study of congestion notification techniques for hop‐by‐hop‐based flow control in data centre Ethernet

et al. 2018

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Data centre Ethernet (DCE) is a budding research area that has received considerable attention from the ICT sector. The traditional DCEs are considered unreliable despite being widely used in modern day data centres. In Ethernet intermediate layer 2 switching devices, the outgoing traffic is faster than the incoming traffic and therefore results in packet drops. Ethernet reliability is provided by the upper layer protocols, which is outlaw to the initial concept of the network. As such, various congestion notification (CN) techniques for hop-by-hop-based flow control have been proposed for layer 2 devices to address the issue of silent packet drops. However, a simulation-based evaluation of IEEE standards that solely focus on CN techniques remains lacking. This study investigates CN techniques for layer 2 devices that employ a hop-by-hop-based flow control. It also highlights the challenges confronting CN techniques in determining the optimal buffer threshold. In addition, FCoE protocol and its relation to CN are emphasized. A simulation-based evaluation of IEEE standards (IEEE 802.3x and IEEE 802.1Qbb) is performed on a hop-by-hop-based flow control with the traditional IEEE 802.3 Ethernet under different traffic loads. The parameters, such as throughput, end-to-end delay, and buffer space utilization, are evaluated through a simulation-based comparison.

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Section: Hop-by-hop and End-to-end Flow Controlmentioning

confidence: 99%

Section: Cn Schemesmentioning

confidence: 99%

Section: Hop-by-hop Buffer Threshold Challengesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comparative study of congestion notification techniques for hop‐by‐hop‐based flow control in data centre Ethernet

et al. 2018

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“…Hop-by-hop flow control protocols have been extensively studied in the context of ATM and local-area networks [9,14,16,17]. The motivation in these high-speed networks is to avoid the burst behavior of end-to-end protocols like TCP at small round-trip times.…”

Section: Related Workmentioning

confidence: 99%

Mitigating congestion in wireless sensor networks

Hull

Jamieson

Balakrishnan

2004

Proceedings of the 2nd International Conference on Embedded Networked Sensor Systems

552

368

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Network congestion occurs when offered traffic load exceeds available capacity at any point in a network. In wireless sensor networks, congestion causes overall channel quality to degrade and loss rates to rise, leads to buffer drops and increased delays (as in wired networks), and tends to be grossly unfair toward nodes whose data has to traverse a larger number of radio hops. Congestion control in wired networks is usually done using end-to-end and network-layer mechanisms acting in concert. However, this approach does not solve the problem in wireless networks because concurrent radio transmissions on different "links" interact with and affect each other, and because radio channel quality shows high variability over multiple timescales. We examine three techniques that span different layers of the traditional protocol stack: hop-by-hop flow control, rate limiting source traffic when transit traffic is present, and a prioritized medium access control (MAC) protocol. We implement these techniques and present experimental results from a 55-node in-building wireless sensor network. We demonstrate that the combination of these techniques, Fusion, can improve network efficiency by a factor of three under realistic workloads.

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