Making 802.11 DCF near-optimal: Design, implementation, and evaluation

Jinsung Lee, Hojin Lee, Yung Yi, Song Chong, Bruno Nardelli, Mung Chiang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

18 Scopus citations

Abstract

This paper proposes a new wireless MAC protocol called Optimal DCF (O-DCF). O-DCF modifies the rule of adapting CSMA parameters, such as backoff time and transmission length, based on a function of the supply-demand differential captured by the local queue length. O-DCF is fully compatible with 802.11 hardware, so that it can be easily implemented only with a simple device driver update. O-DCF is inspired by the recent theoretical studies on queue-based CSMA for high throughput and fairness. O-DCF effectively bridges the gap between theory and practice, implemented and tested in an off-the-shelf 802.11 chipset. Through extensive simulations and real experiments with a 16-node wireless network testbed, we evaluate the performance of O-DCF and show that it outperforms other competitive ones, such as 802.11 DCF, optimal CSMA, and DiffQ for various scenarios.

Original languageEnglish (US)
Title of host publication2013 IEEE International Conference on Sensing, Communications and Networking, SECON 2013
PublisherIEEE Computer Society
Pages86-94
Number of pages9
ISBN (Print)9781479902309
DOIs
StatePublished - Jan 1 2013
Event2013 10th Annual IEEE Communications Society Conference on Sensing and Communication in Wireless Networks, SECON 2013 - New Orleans, LA, United States
Duration: Jun 24 2013Jun 27 2013

Publication series

Name2013 IEEE International Conference on Sensing, Communications and Networking, SECON 2013

Other

Other2013 10th Annual IEEE Communications Society Conference on Sensing and Communication in Wireless Networks, SECON 2013
CountryUnited States
CityNew Orleans, LA
Period6/24/136/27/13

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

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  • Cite this

    Lee, J., Lee, H., Yi, Y., Chong, S., Nardelli, B., & Chiang, M. (2013). Making 802.11 DCF near-optimal: Design, implementation, and evaluation. In 2013 IEEE International Conference on Sensing, Communications and Networking, SECON 2013 (pp. 86-94). [6644966] (2013 IEEE International Conference on Sensing, Communications and Networking, SECON 2013). IEEE Computer Society. https://doi.org/10.1109/SAHCN.2013.6644966