Size-based and direction-based TCP fairness issues in IEEE 802.11 WLANs.
Cross-layer interaction of Distributed Coordination Function (DCF) of 802.11 MAC protocol and TCP transport protocol leads to two types of unfairness. In a mixed traffic scenario, short-lived TCP flows suffer from poor performance compare to the aggressive long-lived flows. Since the main source of...
| Main Authors: | , |
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| Format: | Article |
| Language: | English English |
| Published: |
Hindawi Publishing Corp.
2010
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| Online Access: | http://psasir.upm.edu.my/id/eprint/16734/1/Size.pdf |
| _version_ | 1796969113896091648 |
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| author | Khademi , Naeem Othman , Mohamed |
| author_facet | Khademi , Naeem Othman , Mohamed |
| author_sort | Khademi , Naeem |
| collection | UPM |
| description | Cross-layer interaction of Distributed Coordination Function (DCF) of 802.11 MAC protocol and TCP transport protocol leads to two types of unfairness. In a mixed traffic scenario, short-lived TCP flows suffer from poor performance compare to the aggressive long-lived flows. Since the main source of Internet traffic is small file web transfers, this issue forms a major challenge in current WLANs which is called size-based unfairness. In addition, when sharing an access point bottleneck queue, upstream flows impede the performance of downstream flows resulting in direction-based unfairness. Proposed solutions in literature mostly rely on size-based scheduling policies. However each proposed method is able to solve any of these two mentioned aspects, none of them can provide both size-based and direction-based fairness in a unique solution. In this paper, we propose a novel queue management policy called Threshold-based Least Attained Service-Selective Acknowledgment Filtering (TLAS-SAF). We show analytically and by simulation that TLAS-SAF is capable of providing both direction-based and size-based fairness and can be taken into account as a unique solution to be applied at access point buffers. |
| first_indexed | 2024-03-06T07:38:17Z |
| format | Article |
| id | upm.eprints-16734 |
| institution | Universiti Putra Malaysia |
| language | English English |
| last_indexed | 2024-03-06T07:38:17Z |
| publishDate | 2010 |
| publisher | Hindawi Publishing Corp. |
| record_format | dspace |
| spelling | upm.eprints-167342015-09-27T23:45:42Z http://psasir.upm.edu.my/id/eprint/16734/ Size-based and direction-based TCP fairness issues in IEEE 802.11 WLANs. Khademi , Naeem Othman , Mohamed Cross-layer interaction of Distributed Coordination Function (DCF) of 802.11 MAC protocol and TCP transport protocol leads to two types of unfairness. In a mixed traffic scenario, short-lived TCP flows suffer from poor performance compare to the aggressive long-lived flows. Since the main source of Internet traffic is small file web transfers, this issue forms a major challenge in current WLANs which is called size-based unfairness. In addition, when sharing an access point bottleneck queue, upstream flows impede the performance of downstream flows resulting in direction-based unfairness. Proposed solutions in literature mostly rely on size-based scheduling policies. However each proposed method is able to solve any of these two mentioned aspects, none of them can provide both size-based and direction-based fairness in a unique solution. In this paper, we propose a novel queue management policy called Threshold-based Least Attained Service-Selective Acknowledgment Filtering (TLAS-SAF). We show analytically and by simulation that TLAS-SAF is capable of providing both direction-based and size-based fairness and can be taken into account as a unique solution to be applied at access point buffers. Hindawi Publishing Corp. 2010 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/16734/1/Size.pdf Khademi , Naeem and Othman , Mohamed (2010) Size-based and direction-based TCP fairness issues in IEEE 802.11 WLANs. EURASIP Journal on Wireless Communications and Networking, 2010 (49). pp. 1-27. ISSN 1687-1499 English |
| spellingShingle | Khademi , Naeem Othman , Mohamed Size-based and direction-based TCP fairness issues in IEEE 802.11 WLANs. |
| title | Size-based and direction-based TCP fairness issues in IEEE 802.11 WLANs. |
| title_full | Size-based and direction-based TCP fairness issues in IEEE 802.11 WLANs. |
| title_fullStr | Size-based and direction-based TCP fairness issues in IEEE 802.11 WLANs. |
| title_full_unstemmed | Size-based and direction-based TCP fairness issues in IEEE 802.11 WLANs. |
| title_short | Size-based and direction-based TCP fairness issues in IEEE 802.11 WLANs. |
| title_sort | size based and direction based tcp fairness issues in ieee 802 11 wlans |
| url | http://psasir.upm.edu.my/id/eprint/16734/1/Size.pdf |
| work_keys_str_mv | AT khademinaeem sizebasedanddirectionbasedtcpfairnessissuesinieee80211wlans AT othmanmohamed sizebasedanddirectionbasedtcpfairnessissuesinieee80211wlans |