Mitigating MAC Layer Performance Anomaly of Wi-Fi Networks through Adaptable Channelization
802.11 wireless local area networks (WLANs) can support multiple data rates at physical layer by using adaptive modulation and coding (AMC) scheme. However, this differential data rate capability introduces a serious performance anomaly in WLANs. In a network comprising of several nodes with varying...
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| Format: | Article |
| Language: | English |
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Ivannikov Institute for System Programming of the Russian Academy of Sciences
2019-06-01
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| Series: | Труды Института системного программирования РАН |
| Subjects: | |
| Online Access: | https://ispranproceedings.elpub.ru/jour/article/view/1153 |
| _version_ | 1818206047690555392 |
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| author | Abid Hussain Muhammad Safyan Sohail Sarvar Zia Ul Qayyum Muddessar Iqbal Nazar Abbas Saqib |
| author_facet | Abid Hussain Muhammad Safyan Sohail Sarvar Zia Ul Qayyum Muddessar Iqbal Nazar Abbas Saqib |
| author_sort | Abid Hussain |
| collection | DOAJ |
| description | 802.11 wireless local area networks (WLANs) can support multiple data rates at physical layer by using adaptive modulation and coding (AMC) scheme. However, this differential data rate capability introduces a serious performance anomaly in WLANs. In a network comprising of several nodes with varying transmission rates, nodes with lower data rate (slow nodes) degrade the throughput of nodes with higher transmission rates (fast nodes). The primary source of this anomaly is the channel access mechanism of WLANs which ensures long term equal channel access probability to all nodes irrespective of their transmission rates. In this work, we investigate the use of adaptable width channelization to minimize the effect of this absurdity in performance. It has been observed that surplus channel-width due to lower transmission rate of slow nodes can be assigned to fast nodes connected to other access points (APs) which can substantially increase the overall throughput of the whole network. We propose a medium access control (MAC) layer independent anomaly prevention (MIAP) algorithm that assigns channel-width to nodes connected with different APs based on their transmission rate. We have modeled the effect of adaptable channelization and provide lower and upper bounds for throughput in various network scenarios. Our empirical results indicate a possible increase in network throughput by more than 20% on employing the proposed MIAP algorithm. |
| first_indexed | 2024-12-12T04:06:49Z |
| format | Article |
| id | doaj.art-24648332f5914611b3d6891d3a5d177f |
| institution | Directory Open Access Journal |
| issn | 2079-8156 2220-6426 |
| language | English |
| last_indexed | 2024-12-12T04:06:49Z |
| publishDate | 2019-06-01 |
| publisher | Ivannikov Institute for System Programming of the Russian Academy of Sciences |
| record_format | Article |
| series | Труды Института системного программирования РАН |
| spelling | doaj.art-24648332f5914611b3d6891d3a5d177f2022-12-22T00:38:45ZengIvannikov Institute for System Programming of the Russian Academy of SciencesТруды Института системного программирования РАН2079-81562220-64262019-06-01312536610.15514/ISPRAS-2019-31(2)-51151Mitigating MAC Layer Performance Anomaly of Wi-Fi Networks through Adaptable ChannelizationAbid Hussain0Muhammad Safyan1Sohail Sarvar2Zia Ul Qayyum3Muddessar Iqbal4Nazar Abbas Saqib5Национальный университет наук и технологий, ИсламабадПравительственный университет колледжа, ЛахорУниверситет ГуджаратаУниверситет ГуджаратаЛондонский университет Саут Бэнк; университет ЭссексаНациональный университет наук и технологий802.11 wireless local area networks (WLANs) can support multiple data rates at physical layer by using adaptive modulation and coding (AMC) scheme. However, this differential data rate capability introduces a serious performance anomaly in WLANs. In a network comprising of several nodes with varying transmission rates, nodes with lower data rate (slow nodes) degrade the throughput of nodes with higher transmission rates (fast nodes). The primary source of this anomaly is the channel access mechanism of WLANs which ensures long term equal channel access probability to all nodes irrespective of their transmission rates. In this work, we investigate the use of adaptable width channelization to minimize the effect of this absurdity in performance. It has been observed that surplus channel-width due to lower transmission rate of slow nodes can be assigned to fast nodes connected to other access points (APs) which can substantially increase the overall throughput of the whole network. We propose a medium access control (MAC) layer independent anomaly prevention (MIAP) algorithm that assigns channel-width to nodes connected with different APs based on their transmission rate. We have modeled the effect of adaptable channelization and provide lower and upper bounds for throughput in various network scenarios. Our empirical results indicate a possible increase in network throughput by more than 20% on employing the proposed MIAP algorithm.https://ispranproceedings.elpub.ru/jour/article/view/1153скорость передачидоступ к каналуадаптивный каналпредотвращение аномалийпропускная способность |
| spellingShingle | Abid Hussain Muhammad Safyan Sohail Sarvar Zia Ul Qayyum Muddessar Iqbal Nazar Abbas Saqib Mitigating MAC Layer Performance Anomaly of Wi-Fi Networks through Adaptable Channelization Труды Института системного программирования РАН скорость передачи доступ к каналу адаптивный канал предотвращение аномалий пропускная способность |
| title | Mitigating MAC Layer Performance Anomaly of Wi-Fi Networks through Adaptable Channelization |
| title_full | Mitigating MAC Layer Performance Anomaly of Wi-Fi Networks through Adaptable Channelization |
| title_fullStr | Mitigating MAC Layer Performance Anomaly of Wi-Fi Networks through Adaptable Channelization |
| title_full_unstemmed | Mitigating MAC Layer Performance Anomaly of Wi-Fi Networks through Adaptable Channelization |
| title_short | Mitigating MAC Layer Performance Anomaly of Wi-Fi Networks through Adaptable Channelization |
| title_sort | mitigating mac layer performance anomaly of wi fi networks through adaptable channelization |
| topic | скорость передачи доступ к каналу адаптивный канал предотвращение аномалий пропускная способность |
| url | https://ispranproceedings.elpub.ru/jour/article/view/1153 |
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