Abstract
Under significant coexistence in the ISM band, the impact of cross-technology interference (CTI) has become a major threat to low-power IoT. This paper presents ECC that uniquely enables explicit channel coordination among heterogeneities via cross-technology communication (CTC) introduced in the latest studies, while maintaining full compatibility to commodity devices. Unlike any implicit coordination designs adopting statistical models to probabilistically predict white spaces, ECC generates the white space using WiFi CTS, which is then explicitly notified to ZigBee through CTC for immediate use. Technical highlight of ECC lies in ensuring ZigBee communication under CTI, without disrupting WiFi operation. This is effectively achieved by the dynamic adjustment of CTS duration with respect to traffic amount and spectrum availability, which essentially enables ECC to be generally applied to various scenarios without prior knowledge. Lastly, ECC significantly reduces delay and energy in low duty cycled ZigBee, by waking them up upon channel availability (via CTC). We evaluate ECC on commercial platforms: Atheros AR2425 WiFi card and TelosB motes. Experiment results show that ECC achieves 1.8x ZigBee packet reception ratio, and cuts down delay and energy by 98.6% and 51% under the low duty cycle.
Original language | English (US) |
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Title of host publication | MobiSys 2018 - Proceedings of the 16th ACM International Conference on Mobile Systems, Applications, and Services |
Publisher | Association for Computing Machinery, Inc |
Pages | 178-190 |
Number of pages | 13 |
ISBN (Electronic) | 9781450357203 |
DOIs | |
State | Published - Jun 10 2018 |
Event | 16th ACM International Conference on Mobile Systems, Applications, and Services,MobiSys 2018 - Munich, Germany Duration: Jun 10 2018 → Jun 15 2018 |
Publication series
Name | MobiSys 2018 - Proceedings of the 16th ACM International Conference on Mobile Systems, Applications, and Services |
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Other
Other | 16th ACM International Conference on Mobile Systems, Applications, and Services,MobiSys 2018 |
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Country/Territory | Germany |
City | Munich |
Period | 6/10/18 → 6/15/18 |
Bibliographical note
Publisher Copyright:© 2018 Association for Computing Machinery.
Keywords
- Internet of Things
- WiFi
- ZigBee