Coupled IEEE 802.11ac and TCP performance evaluation in various aggregation schemes and Access Categories

Sharon, Oran; Alpert, Yaron

doi:10.1016/j.comnet.2016.02.023

Cited by 8 publications

(8 citation statements)

References 31 publications

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“…The reason for this new protocol is related with the fact, that previous O-DCF couldn't handle TCP sessions. Since TCP throughput is highly related to the fact that TCP monitors congestion (Sharon, Alpertb 2016) by increasing the wireless medium access aggressiveness O-DCF created a closed loop, where some of the stations couldn't increase their queue length, because a lot of retries were happening. Therefore, TCP congestion mechanism would decrease window size and throughput would be still low without possibility to increase.…”

Section: Technological Advancements In Ieee 80211 Media Access Controlmentioning

confidence: 99%

Investigation of Media Access Control in Wireless Networks

Cuzanauskas¹

2018

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Vadovas doc. dr. Aurimas ANSKAITIS (Vilniaus Gedimino technikos universitetas, elektros ir elektronikos inžinerija-01T) (2013-2016), prof. dr. Šarunas PAULIKAS (Vilniaus Gedimino technikos universitetas, elektros ir elektronikos inžinerija-01T) (2017-2018). Vilniaus Gedimino technikos universiteto Elektros ir elektronikos inžinerijos mokslo krypties disertacijos gynimo taryba: Pirmininkas prof. dr. Dalius NAVAKAUSKAS (Vilniaus Gedimino technikos universitetas, elektros ir elektronikos inžinerija-01T). Nariai: dr. Rimvydas ALEKSIEJŪNAS (Vilniaus universitetas, fizika-02P), prof. dr. Artūras SERACKIS (Vilniaus Gedimino technikos universitetas, elektros ir elektronikos inžinerija-01T), dr. Szymon SZOTT (Stanislavo Stašico vardo kalnakasybos ir metalurgijos akademija, elektros ir elektronikos inžinerija-01T), doc. dr. Dainius UDRIS (Vilniaus Gedimino technikos universitetas, technologijos mokslai, elektros ir elektronikos inžinerija-01T). Disertacija bus ginama viešame Elektros ir elektronikos inžinerijos mokslo krypties disertacijos gynimo tarybos posėdyje 2018 m. rugpjūčio 27 d. 14 val. Vilniaus Gedimino technikos universiteto senato posėdžių salėje.

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Section: Technological Advancements In Ieee 80211 Media Access Controlmentioning

confidence: 99%

Investigation of Media Access Control in Wireless Networks

Cuzanauskas¹

2018

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“…The issue of TCP performance over IEEE 802.11 networks has been investigated in many papers in the past, e.g. [4][5][6][7][8][9][10][11][12][13][14][15][16][17]. In this past research however, it is assumed that stations compete to get access to the channel using the contention based CSMA/CA access method.…”

Section: Research Questionmentioning

confidence: 99%

“…In [15] the performance of a single TCP connection is evaluated using all three aggregation schemes and four standard ACs. However, only an error-free channel is considered and there is no reference to RD, i.e.…”

Section: Previous Workmentioning

confidence: 99%

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Coupled IEEE 802.11ac and TCP Goodput Improvement Using Aggregation and Reverse Direction

Sharon¹,

Alpert²

2016

WSN

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This paper suggests a new model for the transmission of Transmission Control Protocol (TCP) traffic over IEEE 802.11 using the new features of IEEE 802.11ac . The paper examines a first step in this direction and as such we first consider a single TCP connection, which is typical in a home environment. We show that when the IEEE 802.11ac MAC is aware of QoS TCP traffic, using Reverse Direction improves the TCP Goodput in tens of percentages compared to the traditional contention based channel access. In an error-free channel this improvement is 20% while in an errorprone channel the improvement reaches 60%, also using blind retransmission of frames. In our operation modes we also assume the use in Two-Level aggregation scheme, the Automatic Repeat-Request (ARQ) protocol of the IEEE 802.11ac MAC layer and also assume the data rates and the four Access Categories defined in this standard.

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“…Most of the research papers on IEEE 802.11ax thus far examine new mechanisms in the PHY and MAC layers of the IEEE 802.11ax proposal . The issue of TCP traffic over IEEE 802.11ac networks has been investigated, eg, in previous studies, for unidirectional DL TCP traffic, unidirectional UL TCP traffic and both bi‐directional DL and UL TCP traffic. However, in all these works, there is no possibility of using the MU operation mode over the UL, a feature that was first introduced in IEEE 802.11ax.…”

Section: Introductionmentioning

confidence: 99%

Advanced IEEE 802.11ax TCP aware scheduling under unreliable channels

Sharon

Alpert

2019

Int J Communication

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In this paper, we suggest advanced IEEE 802.11ax (WiFi) TCP-aware scheduling strategies for optimizing the TCP Goodput AP operation under transmission of unidirectional TCP traffic to downloading stations. Our scheduling strategies optimize the TCP Goodput performance using the capability for Multi User transmissions over the Uplink, first introduced in IEEE 802.11ax, together with Multi User transmissions over the Downlink. The scheduling strategies are based on Transmission Opportunities (TXOP), and we suggest three scheduling strategies determining the TXOP formation parameters. In one of the strategies, one can control the achieved TCP Goodput vs the delay. We also assume saturated TCP transmission queues. We show that with minimal TCP Goodput degradation, one can avoid considerable delays: It turns out that for TCP Data segments of 1460 bytes, achieving optimal TCP Goodput requires TXOPs of 25 ms, while if one loses only 5% of the optimal Goodput, TXOPs can be of only 3 ms. For TCP Data segments of 256 bytes, the TXOPs are of 13 and 5 ms, respectively.

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Coupled IEEE 802.11ac and TCP performance evaluation in various aggregation schemes and Access Categories

Cited by 8 publications

References 31 publications

Investigation of Media Access Control in Wireless Networks

Investigation of Media Access Control in Wireless Networks

Coupled IEEE 802.11ac and TCP Goodput Improvement Using Aggregation and Reverse Direction

Advanced IEEE 802.11ax TCP aware scheduling under unreliable channels

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