Throughput Analysis of IEEE 802.11 WLANs with Inter-Network Interference

Liu, Jingwei; Aoki, Takuya; Li, Zhetao; Pei, Tingrui; Choi, Young‐June; Nguyen, Kien; Sekiya, Hiroo

doi:10.3390/app10062192

Cited by 9 publications

(5 citation statements)

References 21 publications

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“…In [23], [24], the authors have respectively quantified the throughput of a multihop network with RTS/CTS considerations and long frames using the concept. The model 's applicability has also been found in WLANs with coupling effect [25], capture effect [34], or WLANs with internetwork-interferences [35]. Additionally, the analysis can well express different environments, such as 802.11e Enhanced Distributed Channel Access (EDCA) multi-hop networks [27], ad-hoc multi-channel networks [30], multi-hop networks considering multi-rate [32], and 802.11p EDCA WLANs [17].…”

Section: Related Workmentioning

confidence: 98%

Throughput and Delay Analysis of IEEE 802.11-Based Tree-Topology Networks

Kanematsu

Wan

Sanada

et al. 2020

IEEE Open J. Commun. Soc.

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This paper aims to investigate the performance of the IEEE 802.11-based tree-topology network, where a wireless node is within the others' carrier sensing ranges. In such a network, the concurrent transmission is a dominant cause of frame collisions. Moreover, the relay nodes (RN) (i.e., in the tree) likely cause the coexistence of non-saturated and saturated nodes in the networks. Those conditions have not been addressed in the previous works yet. As a solution, this work proposes new analytical expressions of delay and throughput in the investigated scenario. The presented analytical model incorporates the Bianchi model and airtime concept to formulate operations of the IEEE 802.11 nodes. First, by leveraging Bianchi-based analysis, the proposed model gives the frame collision probability caused by concurrent transmission. Second, by using airtime concept analysis, the ratio of frame numbers of each flow in a relay node (RN) is expressed to represent the buffer state of RN. As a result, we can obtain the network throughput, the throughput, and the delay of each flow. The validity of the analytical expressions is confirmed by the quantitative agreement between the analytical and simulation results.

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Section: Related Workmentioning

confidence: 98%

Throughput and Delay Analysis of IEEE 802.11-Based Tree-Topology Networks

Kanematsu

Wan

Sanada

et al. 2020

IEEE Open J. Commun. Soc.

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“…Various analytical models for WLAN performance are being proposed by many network researchers. In [15], the authors have proposed an analytical expression for measuring WLAN performance while considering inter-network interference. This model is proposed with the concept of airtime and the system performance has been validated by simulations.…”

Section: Interference Analysismentioning

confidence: 99%

Impact of People’s Movement on Wi-Fi Link Throughput in Indoor Propagation Environments: An Empirical Study

2021

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There has been tremendous growth in the deployment of Wi-Fi 802.11-based networks in recent years. Many researchers have been investigating the performance of the Wi-Fi 802.11-based networks by exploring factors such as signal interference, radio propagation environments, and wireless protocols. However, exploring the effect of people's movement on the Wi-Fi link throughout the performance is still a potential area yet to be explored. This paper investigates the impact of people's movement on Wi-Fi link throughput. This is achieved by setting up experimental scenarios by using a pair of wireless laptops to file share where there is human movement between the two nodes. Wi-Fi link throughput is measured in an obstructed office block, laboratory, library, and suburban residential home environments. The collected data from the experimental study show that the performance difference between fixed and random human movement had an overall average of 2.21 ± 0.07 Mbps. Empirical results show that the impact of people's movement (fixed and random people movements) on Wi-Fi link throughput is insignificant. The findings reported in this paper provide some insights into the effect of human movement on Wi-Fi throughputs that can help network planners for the deployment of next generation Wi-Fi systems.

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“…single-hop), focusing on the capture effect. 21 In Liu et al, 22 the airtime-based analysis has been also applied in dense wireless networks aiming to quantify the inter-network interference. The earlier results of this work have been presented at IEEE VTC Spring 2019.…”

Section: Airtime-based Analysismentioning

confidence: 99%

Throughput and delay analysis for IEEE 802.11 multi-hop networks considering data rate

Kanematsu¹,

Sanada²,

Li³

et al. 2020

International Journal of Distributed Sensor Networks

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In an IEEE 802.11 Distributed Coordination Function–based wireless network with multiple hops, a node operates on its own with several predefined data rates (i.e. following modulation and coding schemes). Moreover, the IEEE 802.11 Distributed Coordination Function node’s communication is characterized by transmission and carrier-sensing distances. The transmission one is, in general, reverse proportional to the data rate. Meanwhile, the carrier distance keeps constant regardless of the modulation and coding scheme. Therefore, when a node has a high transmission rate, within its carrier-sensing range, the number of nodes may increase. The previous works have not yet extensively investigated the impact of data rates on such a scenario. This article addresses that issue aiming to quantify the network performance of the multi-hop IEEE 802.11 networks. As a solution, we propose the mathematical expressions, which consider data rates, for end-to-end throughputs, as well as delays in the network with string topology. We confirm the expressions’ correctness by presenting the quantitative agreements between the analytical and simulation results.

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Throughput Analysis of IEEE 802.11 WLANs with Inter-Network Interference

Cited by 9 publications

References 21 publications

Throughput and Delay Analysis of IEEE 802.11-Based Tree-Topology Networks

Throughput and Delay Analysis of IEEE 802.11-Based Tree-Topology Networks

Impact of People’s Movement on Wi-Fi Link Throughput in Indoor Propagation Environments: An Empirical Study

Throughput and delay analysis for IEEE 802.11 multi-hop networks considering data rate

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