Cross-technology Communication (CTC) is a key technique to explore the full capacity of heterogeneous wireless. The latest CTC designs explore the PHY-layer to reach the standards' maximum rate, but leaving a critical gap to practicality - existing PHY-layer CTCs are commonly transmitter-side techniques requiring a high-end transmitter (with a high degree of freedom in signal manipulation) to emulate the receiver signal closely. This inherently limits the reverse direction (low-end to high-end) communication. We present XBee, a unique receiver-side CTC thatfi lls in the gap and makes a critical step towards achieving CTC bidirectionality. XBee is demonstrated as a ZigBee to BLE communication, where the key innovation lies in the unique mechanism of cross-technology decoding, or cross-decoding in short, which interprets a ZigBee frame only by carefully observing the bit patterns obtained at the BLE receiver. Technically, XBee counterintuitively explores the sampling offset to overcome the intrinsic challenge due to BLE's narrower bandwidth (1MHz) than ZigBee (2MHz). Extensive implementation and evaluation on USRP and commodity devices reaches 250 kbps under 85% reliability, a 15,000x improvement over state-ofthe- art ZigBee to BLE communication, and comparable with the latest PHY-layer CTCs to achieve CTC bidirectionality.
|Original language||English (US)|
|Title of host publication||MobiCom 2018 - Proceedings of the 24th Annual International Conference on Mobile Computing and Networking|
|Publisher||Association for Computing Machinery|
|Number of pages||14|
|State||Published - Oct 15 2018|
|Event||24th Annual International Conference on Mobile Computing and Networking, MobiCom 2018 - New Delhi, India|
Duration: Oct 29 2018 → Nov 2 2018
|Name||Proceedings of the Annual International Conference on Mobile Computing and Networking, MOBICOM|
|Other||24th Annual International Conference on Mobile Computing and Networking, MobiCom 2018|
|Period||10/29/18 → 11/2/18|
Bibliographical notePublisher Copyright:
© 2018 Association for Computing Machinery.
- Bluetooth Low Energy
- Cross-technology Communication
- Internet of Things