A frame aggregation scheduler for QoS-sensitive applications in IEEE 802.11n WLANs

Hajlaoui, Nasreddine; Jabri, Issam; Taieb, Malek; Benjemaa, M.

doi:10.1109/iccitechnol.2012.6285796

Cited by 15 publications

(11 citation statements)

References 12 publications

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“…(ii) When the size of aggregated frame is raised, the delay is considerably increased because of the time added when waiting for other packets in the queue to construct the A-MPDU frame. This was proved by authors in [19,35,37,38]. Particularly, for low rate applications such as VoIP, the required delay to fill the aggregated frame will be increased.…”

Section: [33]mentioning

confidence: 91%

“…This was the case of proposed schedulers in . Schedulers based on deadline packet transmission improve network performance by reducing packet rejection, as it was proposed by Majeed and Abu‐Ghazaleh . Schedulers that consider QoS requirements of different applications are the most appropriate for multimedia applications. This was the case of scheduler elaborated by . In fact, considering access network delay threshold, average access delay and waiting time, delay and throughput are improved for all traffic types.…”

Section: Related Workmentioning

confidence: 95%

“…(iii) Schedulers that consider QoS requirements of different applications are the most appropriate for multimedia applications. This was the case of scheduler elaborated by [38]. In fact, considering access network delay threshold, average access delay and waiting time, delay and throughput are improved for all traffic types.…”

Section: [33]mentioning

confidence: 98%

“…small size packets. Proposes algorithm for small size packets [37,38] Scheduling based on QoS Illustrates that increased delay is caused when None. requirements of each application aggregating frames with low rate, and when real for adaptive aggregation size.…”

Section: [35]mentioning

confidence: 99%

See 3 more Smart Citations

Dynamic frame aggregation scheduler for multimedia applications in IEEE 802.11n networks

Charfi

Gueguen

Fourati

et al. 2015

Trans. Emerging Tel. Tech.

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International audienceProviding Quality of Service (QoS) to real time applications over Wireless Local Area Networks (WLANs) is becoming a very challenging task due to the diversity of multimedia applications. Concurrently, there are numerous WLANs devices that are rising recently. Mainly, we focus on IEEE 802.11n since it was designed to support a high data transmission rate (toward 600 Mbps) based on frame aggregation schemes. The aggregation mechanism accumulates many frames before transmitting them into a single larger frame, thus reducing overhead and increasing efficiency and throughput. Yet, this scheme cannot provide QoS satisfaction for delay sensitive application even if it supports higher throughputs. Indeed, aggregation headers cause supplementary delays particularly when aggregating unfrequent packets with small sizes. To overcome this limitation, we propose in this paper a new Dynamic Frame Aggregation (DFA) scheduler to provide QoS satisfaction to real time services. To achieve this goal, we defined new scheduling parameters such as QoS delays to avoid accumulation of non-scheduled packets. Hence, the DFA scheduler serves packets and dynamically adjusts the aggregated frame size based on these QoS delays. Conducted simulations illustrate the performance of our proposed DFA scheduler in term of satisfying QoS, throughput, loss and delay requirements of voice and video traffics

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Section: [33]mentioning

confidence: 91%

Section: Related Workmentioning

confidence: 95%

Section: [33]mentioning

confidence: 98%

Section: [35]mentioning

confidence: 99%

See 2 more Smart Citations

Dynamic frame aggregation scheduler for multimedia applications in IEEE 802.11n networks

Charfi

Gueguen

Fourati

et al. 2015

Trans. Emerging Tel. Tech.

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“…Lastly, the capacity of every subframe confines to 4095 bytes due to the inability of PPDU length in surpassing the pre-determined time threshold at 5.46 ms. This can obtained by dividing the maximum length with the lowest PHY value (Skordoulis et al, 2008;Hajlaoui et al, 2012).…”

Section: A-mpdu Aggregationmentioning

confidence: 99%

Design a New Bidirectional Transmission Protocol to Improve the Performance of MAC Layer Based on Very High Speed WLANs

Milad¹,

Noh²,

Shibghatullah³

et al. 2015

Journal of Computer Science

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This paper presents a new bidirectional transmission protocol with single data frame to computing the performance of MAC layer based on IEEE 802.11n. As high as 600 Mbps of physical data rate is achieved in IEEE 802.11n where high data rate the current MAC layer leads to high performance overhead and low performance of throughput and designing the MAC layer still ongoing to achieve high performance throughput. In this study, a new bidirectional transmission protocol with single data frame has been proposed called BTDF bidirectional transmission data fragmentation, which is divided each data frame from sender to receiver and reverse into subframes and send each subframe, Packets those exceed the size threshold are divided into fragments also where the corrupted subframe will be retransmitted during the disruption of transmission. We have implemented this scheme in NS2 simulator to show the results for TCP and HDTV traffics and compared with literature.

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The Design Methodology for MAC Strategies and Protocols Supporting Ultra-Low Delay Services in Next Generation IEEE 802.11 WLAN

Mohammed

Yang

et al. 2021

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering

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A frame aggregation scheduler for QoS-sensitive applications in IEEE 802.11n WLANs

Cited by 15 publications

References 12 publications

Dynamic frame aggregation scheduler for multimedia applications in IEEE 802.11n networks

Dynamic frame aggregation scheduler for multimedia applications in IEEE 802.11n networks

Design a New Bidirectional Transmission Protocol to Improve the Performance of MAC Layer Based on Very High Speed WLANs

The Design Methodology for MAC Strategies and Protocols Supporting Ultra-Low Delay Services in Next Generation IEEE 802.11 WLAN

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