Clearing the Rf Smog: Making 802.11 Robust to Cross-Technology Interference
Recent studies show that high-power cross-technology interference is becoming a major problem in today’s 802.11 networks. Devices like baby monitors and cordless phones can cause a wireless LAN to lose connectivity. The existing approach for dealing with such high-power interferers makes the 802...
| Main Authors: | , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
Association for Computing Machinery
2012
|
| Online Access: | http://hdl.handle.net/1721.1/72956 https://orcid.org/0000-0003-4854-4157 https://orcid.org/0000-0003-2593-2069 |
| _version_ | 1826217356026707968 |
|---|---|
| author | Gollakota, Shyamnath Adib, Fadel M. Katabi, Dina Seshan, Srinivasan |
| author2 | Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory |
| author_facet | Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory Gollakota, Shyamnath Adib, Fadel M. Katabi, Dina Seshan, Srinivasan |
| author_sort | Gollakota, Shyamnath |
| collection | MIT |
| description | Recent studies show that high-power cross-technology interference
is becoming a major problem in today’s 802.11 networks. Devices
like baby monitors and cordless phones can cause a wireless
LAN to lose connectivity. The existing approach for dealing
with such high-power interferers makes the 802.11 network switch
to a different channel; yet the ISM band is becoming increasingly
crowded with diverse technologies, and hence many 802.11 access
points may not find an interference-free channel.
This paper presents TIMO, a MIMO design that enables 802.11n
to communicate in the presence of high-power cross-technology
interference. Unlike existing MIMO designs, however, which require
all concurrent transmissions to belong to the same technology,
TIMO can exploit MIMO capabilities to decode in the presence
of a signal from a different technology, hence enabling diverse
technologies to share the same frequency band. We implement a
prototype of TIMO in GNURadio-USRP2 and show that it enables
802.11n to communicate in the presence of interference from baby
monitors, cordless phones, and microwave ovens, transforming scenarios
with a complete loss of connectivity to operational networks. |
| first_indexed | 2024-09-23T17:02:39Z |
| format | Article |
| id | mit-1721.1/72956 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T17:02:39Z |
| publishDate | 2012 |
| publisher | Association for Computing Machinery |
| record_format | dspace |
| spelling | mit-1721.1/729562022-09-29T23:14:28Z Clearing the Rf Smog: Making 802.11 Robust to Cross-Technology Interference Gollakota, Shyamnath Adib, Fadel M. Katabi, Dina Seshan, Srinivasan Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Katabi, Dina Gollakota, Shyamnath Adib, Fadel M. Katabi, Dina Recent studies show that high-power cross-technology interference is becoming a major problem in today’s 802.11 networks. Devices like baby monitors and cordless phones can cause a wireless LAN to lose connectivity. The existing approach for dealing with such high-power interferers makes the 802.11 network switch to a different channel; yet the ISM band is becoming increasingly crowded with diverse technologies, and hence many 802.11 access points may not find an interference-free channel. This paper presents TIMO, a MIMO design that enables 802.11n to communicate in the presence of high-power cross-technology interference. Unlike existing MIMO designs, however, which require all concurrent transmissions to belong to the same technology, TIMO can exploit MIMO capabilities to decode in the presence of a signal from a different technology, hence enabling diverse technologies to share the same frequency band. We implement a prototype of TIMO in GNURadio-USRP2 and show that it enables 802.11n to communicate in the presence of interference from baby monitors, cordless phones, and microwave ovens, transforming scenarios with a complete loss of connectivity to operational networks. National Science Foundation (U.S.) (NSF grant CNS-0831660) National Science Foundation (U.S.) (NSF grant CNS- 0721857) United States. Defense Advanced Research Projects Agency (DARPA ITMANET) 2012-09-14T15:09:23Z 2012-09-14T15:09:23Z 2011-08 Article http://purl.org/eprint/type/ConferencePaper 978-1-4503-0797-0 http://hdl.handle.net/1721.1/72956 Gollakota, Shyamnath et al. “Clearing the RF Smog.” Proceedings of the ACM Special Interest Group on Data Communication (SIGCOMM), August 15–19, 2011, Toronto, Ontario, Canada. ACM Press, 2011. 170. https://orcid.org/0000-0003-4854-4157 https://orcid.org/0000-0003-2593-2069 en_US http://dx.doi.org/10.1145/2018436.2018456 Proceedings of the ACM Special Interest Group on Data Communication 2011 conference, SIGCOMM Creative Commons Attribution-Noncommercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf Association for Computing Machinery MIT web domain |
| spellingShingle | Gollakota, Shyamnath Adib, Fadel M. Katabi, Dina Seshan, Srinivasan Clearing the Rf Smog: Making 802.11 Robust to Cross-Technology Interference |
| title | Clearing the Rf Smog: Making 802.11 Robust to Cross-Technology Interference |
| title_full | Clearing the Rf Smog: Making 802.11 Robust to Cross-Technology Interference |
| title_fullStr | Clearing the Rf Smog: Making 802.11 Robust to Cross-Technology Interference |
| title_full_unstemmed | Clearing the Rf Smog: Making 802.11 Robust to Cross-Technology Interference |
| title_short | Clearing the Rf Smog: Making 802.11 Robust to Cross-Technology Interference |
| title_sort | clearing the rf smog making 802 11 robust to cross technology interference |
| url | http://hdl.handle.net/1721.1/72956 https://orcid.org/0000-0003-4854-4157 https://orcid.org/0000-0003-2593-2069 |
| work_keys_str_mv | AT gollakotashyamnath clearingtherfsmogmaking80211robusttocrosstechnologyinterference AT adibfadelm clearingtherfsmogmaking80211robusttocrosstechnologyinterference AT katabidina clearingtherfsmogmaking80211robusttocrosstechnologyinterference AT seshansrinivasan clearingtherfsmogmaking80211robusttocrosstechnologyinterference |