Improving end-to-end packet delivery in high traffic multi-hop wireless ad hoc networks
| Autor: | Afzal, Syed Rehan, Nabi, Majid, Stuijk, Sander, Basten, Twan, Wu, Xiao, Chen, Min, Wang, Honggang |
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| Přispěvatelé: | Electronic Systems, Networked Embedded Systems Lab |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Computer science
Wireless ad hoc network wireless ad hoc networks Lossy compression lcsh:QA75.5-76.95 Hop (networking) End-to-end principle Wireless Traffic Heavy traffic asymmetric link quality lcsh:Science TS - Technical Sciences Industrial Innovation Network packet business.industry lcsh:Mathematics link-quality measurement Quality measurement lcsh:QA1-939 ESI - Embedded Systems Innovations Asymmetric link quality Link-quality measurement Wireless ad hoc networks lcsh:Q lcsh:Electronic computers. Computer science 2016 ICT business Computer network |
| Zdroj: | EAI Endorsed Transactions on Energy Web, 7, 15, 1-8 EAI Endorsed Transactions on Energy Web, Vol 2, Iss 7, Pp 1-8 (2015) MOBIMEDIA 2015-8th International Conference on Mobile Multimedia Communications, 39-46 STARTPAGE=39;ENDPAGE=46;TITLE=MOBIMEDIA 2015-8th International Conference on Mobile Multimedia Communications |
| Popis: | Accurate link quality estimation is an important building block in quality aware routing. In an inherently lossy, unreliable and dynamic medium such as wireless, the task of accurate estimation becomes very challenging. Over the years ETX has been widely used as a reliable link quality estimation metric. However, more recently it has been established that under heavy traffic loads ETX performance gets significantly worse [4, 18, 19]. Contributions made in this paper are twofold. Firstly, we examine the ETX metric's behavior in detail with respect to the MAC layer and UDP data; and identify the causes of its unreliability. Secondly, we present the design and implementation of the xDDR link quality measurement metric - a variation of ETX - motivated by the observations made in our analysis. Our experiments show that xDDR substantially outperforms minimum hop count, ETX and HETX in packet delivery ratio. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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