Enhancing the performance of TCP over Wi-Fi power saving mechanisms
| Autor: | Daniel Camps-Mur, Sebastia Sallent-Ribes |
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| Rok vydání: | 2012 |
| Předmět: |
TCP acceleration
Computer Networks and Communications business.industry Computer science ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS TCP tuning TCP delayed acknowledgment H-TCP TCP Friendly Rate Control HSTCP Wireless lan Zeta-TCP Electrical and Electronic Engineering business Information Systems Computer network Efficient energy use |
| Zdroj: | Wireless Networks. 18:893-914 |
| ISSN: | 1572-8196 1022-0038 |
| DOI: | 10.1007/s11276-012-0441-4 |
| Popis: | The Wi-Fi technology is quickly being adopted by new types of devices that pose stringent requirements in terms of energy efficiency. In order to address these requirements the IEEE 802.11 group developed in the recent years several power saving protocols, that are today widely used among devices like smartphones. In this paper we study, by means of analysis and simulation, the effect that these power saving protocols have on the performance/energy trade-off experienced by long lived TCP traffic. Our study unveils that the efficiency of Wi-Fi power saving protocols critically depends on the bottleneck bandwidth experienced by a TCP connection. Based on the obtained insights, we design and evaluate a novel algorithm, BA-TA, which runs in a Wi-Fi station, does not require any modification to existing 802.11 standards, and using only information available at layer two, improves the performance/energy trade off of long lived TCP connections, whilst also exhibiting a notable performance with Web traffic and TCP Streaming. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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