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INFOCOM
2009
IEEE

Soft-TDMAC: A Software TDMA-Based MAC over Commodity 802.11 Hardware

14 years 4 months ago
Soft-TDMAC: A Software TDMA-Based MAC over Commodity 802.11 Hardware
—We design and implement Soft-TDMAC, a software Time Division Multiple Access (TDMA) based MAC protocol, running over commodity 802.11 hardware. Soft-TDMAC has a synchronization mechanism, which synchronizes all pairs of network clocks to within microseconds of each other. Building on pairwise synchronization, Soft-TDMAC achieves network wide synchronization. With, out-of-band, network wide synchronization Soft-TDMAC can schedule arbitrary TDMA transmission patterns. We summarize hundreds of hours of testing Soft-TDMAC on a multi-hop testbed. Our experimental results show that Soft-TDMAC synchronizes multi-hop networks to within a few microsecond sized TDMA slots. Soft-TDMAC can schedule transmissions to take end-to-end demands into account and in a way that decreases end-to-end delay [1], [2]. With no collisions, under good channel conditions, TCP achieves almost the full wireless channel bandwidth.
Petar Djukic, Prasant Mohapatra
Added 24 May 2010
Updated 24 May 2010
Type Conference
Year 2009
Where INFOCOM
Authors Petar Djukic, Prasant Mohapatra
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