Integrated Link-System Level Simulation Platform for the Next Generation WLAN - IEEE 802.11ax

Lin, Wensheng; Li, Bo; Yang, Mao; Qu, Qiao; Yan, Zhongjiang; Zuo, Xiaoya; Yang, Bo

doi:10.1109/glocom.2016.7841905

Cited by 31 publications

(15 citation statements)

References 10 publications

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“…They introduce an OFDMA based multiple access protocol, denoted Orthogonal MAC for 802.11ax (OMAX), to solve synchronization problems and to reduce the overhead associated with using OFDMA. In [11] the authors suggest an access protocol over the UL of an IEEE 802.11ax WLAN based on Multi User Multiple-Input-Multiple-Output (MU-MIMO) and OFDMA PHY. In [12] the authors suggest a centralized medium access protocol for the UL of IEEE 802.11ax in order to efficiently use the transmission resources.…”

Section: Previous Workmentioning

confidence: 99%

Scheduling Strategies and Throughput Optimization for the Uplink for IEEE 802.11ax and IEEE 802.11ac Based Networks

Sharon¹,

Alpert²

2017

WSN

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The new IEEE 802.11 standard, IEEE 802.11ax, has the challenging goal of serving more Uplink (UL) traffic and users as compared with his predecessor IEEE 802.11ac, enabling consistent and reliable streams of data (average throughput) per station. In this paper we explore several new IEEE 802.11ax UL scheduling mechanisms and compare between the maximum throughputs of unidirectional UDP Multi Users (MU) triadic. The evaluation is conducted based on Multiple-Input-Multiple-Output (MIMO) and Orthogonal Frequency Division Multiple Access (OFDMA) transmission multiplexing format in IEEE 802.11ax vs. the CSMA/CA MAC in IEEE 802.11ac in the Single User (SU) and MU modes for 1, 4, 8, 16, 32 and 64 stations scenario in reliable and unreliable channels. The comparison is conducted as a function of the Modulation and Coding Schemes (MCS) in use. In IEEE 802.11ax we consider two new flavors of acknowledgment operation settings, where the maximum acknowledgment windows are 64 or 256 respectively. In SU scenario the throughputs of IEEE 802.11ax are larger than those of IEEE 802.11ac by 64% and 85% in reliable and unreliable channels respectively. In MU-MIMO scenario the throughputs of IEEE 802.11ax are larger than those of IEEE 802.11ac by 263% and 270% in reliable and unreliable channels respectively. Also, as the number of stations increases, the advantage of IEEE 802.11ax in terms of the access delay also increases.

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Section: Previous Workmentioning

confidence: 99%

Scheduling Strategies and Throughput Optimization for the Uplink for IEEE 802.11ax and IEEE 802.11ac Based Networks

Sharon¹,

Alpert²

2017

WSN

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“…In order to resolve the energy consumption issue, there are many techniques proposed which focus on different approaches such as packet size adaptation [4][5][6], contention window (CW) adaptation [7,8], passive sleep mode (PSM) [9,10], and link adaptation [7,[11][12][13][14][15]. This paper presents A Review on Link Adaptation Techniques for Energy Efficiency and QoS in IEEE802.11 WLAN.…”

Section: Introductionmentioning

confidence: 99%

A review on link adaptation techniques for energy efficiency and QoS in IEEE802.11 WLAN

Anuar

Muhamad

Ali

et al. 2020

IJEECS

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<span>Link adaptation is a technique that able to adapt modulation and coding scheme (MCS) based on radio channel conditions. With the exponential increase on the wireless devices nowadays, it contributes to high energy consumption and an increase in carbon dioxide (CO<sub>2</sub>) emission which contribute to the environmental issue. Researchers have developed proposals to tackle these issues by design algorithms based on link adaptation technique. Nowadays, various link adaptation techniques have been proposed by researchers with target for either Quality of Service (QoS) enhancement as well as energy efficiency. This paper presents A Review on Link Adaptation Techniques for Energy Efficiency and QoS in IEEE802.11 WLAN. In this study, a comprehensive review of the relevant literature published that focus on link adaptation technique in IEEE 802.11 WLAN in improving the energy efficiency and maximize the QoS performance is presented. Link adaptation can be categorized into transmission power control adaptation, transmission data rate adaptation and joint rate adaptation. These adaptations are carried out according to the channel state information (CSI). CSI can be categorized into signal-to-noise ratio (SNR), bit error rate (BER), delay, and queue length.</span>

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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.…”

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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Integrated Link-System Level Simulation Platform for the Next Generation WLAN - IEEE 802.11ax

Cited by 31 publications

References 10 publications

Scheduling Strategies and Throughput Optimization for the Uplink for IEEE 802.11ax and IEEE 802.11ac Based Networks

Scheduling Strategies and Throughput Optimization for the Uplink for IEEE 802.11ax and IEEE 802.11ac Based Networks

A review on link adaptation techniques for energy efficiency and QoS in IEEE802.11 WLAN

Advanced IEEE 802.11ax TCP aware scheduling under unreliable channels

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