Achievable bandwidth estimation for stations in multi-rate
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| Title: | Achievable bandwidth estimation for stations in multi-rate |
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| Authors: | Eduard Garcia, David Viamonte, Rafael Vidal, Josep Paradells |
| Contributors: | The Pennsylvania State University CiteSeerX Archives |
| Source: | http://upcommons.upc.edu/e-prints/bitstream/2117/1233/7/GarciaWoWMoM07-CReady3.pdf. |
| Publication Year: | 2007 |
| Collection: | CiteSeerX |
| Description: | This paper analyzes the effect of multi-rate transmissions in a CSMA wireless LAN environment. Observations in a real testbed showed that bandwidth resources (in Bytes/s) are shared fairly among all stations even though transmissions carried out at lower rates capture the medium for longer periods, which drastically reduces the overall throughput. The intrinsic concept of fairness in a CSMA scheme with multiple rates is quantified by means of a new formulation which is validated through simulations and practical measurements. The algorithm presented provides the maximum achievable bandwidth that can be offered to a given IEEE 802.11 station. Having this information has evident applications in real-time multimedia transmissions over WLANs. The algorithm was also run in commercial APs as a proof of concept, after analyzing its implementation issues. The model presented in section 4 of this paper has been revised as a result of a posterior analysis. Please refer to (1) for an updated and extended version of section 4 only. |
| Document Type: | text |
| File Description: | application/pdf |
| Language: | English |
| Relation: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.563.4152 |
| Availability: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.563.4152 http://upcommons.upc.edu/e-prints/bitstream/2117/1233/7/GarciaWoWMoM07-CReady3.pdf |
| Rights: | Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
| Accession Number: | edsbas.1F39C91F |
| Database: | BASE |
Nájsť tento článok vo Web of Science | Abstract: | This paper analyzes the effect of multi-rate transmissions in a CSMA wireless LAN environment. Observations in a real testbed showed that bandwidth resources (in Bytes/s) are shared fairly among all stations even though transmissions carried out at lower rates capture the medium for longer periods, which drastically reduces the overall throughput. The intrinsic concept of fairness in a CSMA scheme with multiple rates is quantified by means of a new formulation which is validated through simulations and practical measurements. The algorithm presented provides the maximum achievable bandwidth that can be offered to a given IEEE 802.11 station. Having this information has evident applications in real-time multimedia transmissions over WLANs. The algorithm was also run in commercial APs as a proof of concept, after analyzing its implementation issues. The model presented in section 4 of this paper has been revised as a result of a posterior analysis. Please refer to (1) for an updated and extended version of section 4 only. |
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