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Title
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TDMA on commercial of-the-shelf hardware : fact and fiction revealed
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Author
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Abstract
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| The proliferation of multimedia applications making use of 802.11n networks, and therefore requiring the accompanying QoS, has made it imperative to improve the QoS guarantees. A well-known method is to employ a TDMA access scheme instead of the standard CSMA access scheme on commodity hardware. A considerable number of related works have focused on this issue; however, many assume the manipulation of commodity hardware to be limited to QoS parameters and none of them did a thorough analysis of one of the most crucial elements to make such a system work, that is, the timer source. The goal of this article is twofold; first we discuss a detailed performance analysis of possible timer sources in different environments and stressed by several methods. Second, we discuss the issues that developers face when using commodity hardware in a TDMA access scheme. As a result we present a successful slotted transmission scheme on commodity hardware where less than 0.1% of the received packets exhibit a jitter larger than 10 μs, while transmitting a packet every 256 μs. |
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Language
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English
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Source (journal)
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International journal of electronics and communications. - Stuttgart
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Publication
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Stuttgart
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2015
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ISSN
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1434-8411
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DOI
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10.1016/J.AEUE.2015.01.010
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Volume/pages
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69
:5
(2015)
, p. 800-813
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ISI
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000355495500003
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Full text (Publisher's DOI)
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Full text (open access)
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Full text (publisher's version - intranet only)
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