Performance Analysis of Priority-Based IEEE 802.15.6 Protocol in Saturated Traffic Conditions

The IEEE 802.11ax standard, which realizes multi-user transmission based on orthogonal frequency division multiple access (OFDMA), has been highlighted as a key technology to meet high future demand for Wi-Fi systems. Since this standard is still being developed, performance analysis through mathematical modeling is of paramount importance; however, existing studies have several limitations. Firstly, most of these consider only the saturation network throughput, whereas for 802.11ax in particular, the access delay of the nodes needs to be studied carefully, since they no longer acquire the medium independently but depend solely on the access point’s (AP’s) schedule. Secondly, since the network performance may be affected to a greater extent by legacy nodes than by 802.11ax nodes, it is desirable to consider various heterogeneous cases of networks with existing legacy nodes. In this paper, a new analytical framework for the 802.11ax MAC protocol is provided. Markov-chain-based models are developed to represent the behavior of the 802.11ax nodes, and both non-saturated traffic conditions and co-existence with the legacy nodes are considered. Through both analysis and MATLAB simulations, it is shown that the proposed model accurately evaluates the throughput and the delay performance under various network conditions.

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Performance Analysis of Road Intersections under Heterogeneous Traffic Conditions: A Review

International Journal of Engineering and Management Research ◽

10.31033/ijemr.11.4.22 ◽

2021 ◽

Vol 11 (4) ◽

Author(s):

Poola Nagesh ◽

Sambit Kumar Beura

Keyword(s):

Performance Analysis ◽

Urban Transportation ◽

Threshold Level ◽

Heterogeneous Traffic ◽

Current Transport ◽

Motion Pattern ◽

Traffic Conditions ◽

The World ◽

Road Intersections ◽

Large Distribution

The rapid growth of traffic in most countries exceeds the current transport system's threshold level and requires a more efficient and practical approach to be addressed. As the renovation of urban transportation infrastructure is not feasible, alternatives to the problem are urgently needed. This paper addresses the Performance Analysis of Road Intersections under Heterogeneous Traffic Conditions. At whatever point two or significantly more streets converge or cross, users of these streets should change their mobility to prevent a collision. This adjustment can take the form of a speed drop or a change in their motion pattern. In several regions of the world, traffic is a mixture of large distribution of various vehicle kinds. Hence users of a signalized crossroads in vehicles are a heterogeneous mix. The current study has involves review based on 5 selected papers analysing findings and drawing conclusion along with posing future questions.

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An NS-3 Implementation and Experimental Performance Analysis of IEEE 802.15.6 Standard under Different Deployment Scenarios

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph17114007 ◽

2020 ◽

Vol 17 (11) ◽

pp. 4007 ◽

Cited By ~ 1

Author(s):

Beom-Su Kim ◽

Tae-Eung Sung ◽

Ki-Il Kim

Keyword(s):

Performance Analysis ◽

Interference Mitigation ◽

Dynamic Resource Allocation ◽

Ieee 802.15.6 ◽

Simulation Studies ◽

Research Topics ◽

Body Area ◽

Average Delay ◽

Oriented Link ◽

Dynamic Resource

Various simulation studies for wireless body area networks (WBANs) based on the IEEE 802.15.6 standard have recently been carried out. However, most of these studies have applied a simplified model without using any major components specific to IEEE 802.15.6, such as connection-oriented link allocations, inter-WBAN interference mitigation, or a two-hop star topology extension. Thus, such deficiencies can lead to an inaccurate performance analysis. To solve these problems, in this study, we conducted a comprehensive review of the major components of the IEEE 802.15.6 standard and herein present modeling strategies for implementing IEEE 802.15.6 MAC on an NS-3 simulator. In addition, we configured realistic network scenarios for a performance evaluation in terms of throughput, average delay, and power consumption. The simulation results prove that our simulation system provides acceptable levels of performance for various types of medical applications, and can support the latest research topics regarding the dynamic resource allocation, inter-WBAN interference mitigation, and intra-WBAN routing.

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