Recent advances in Cross-Technology Communication (CTC) have improved efficient coexistence and cooperation among heterogeneous wireless devices (e.g., WiFi, ZigBee, and Bluetooth) operating in the same ISM band. However, until now the effectiveness of existing CTCs, which rely on packet-level modulation, is limited due to their low throughput (e.g., tens of bps). Our work, named WEBee, opens a promising direction for high-throughput CTC via physical-level emulation. WEBee uses a high-speed wireless radio (e.g., WiFi OFDM) to emulate the desired signals of a low-speed radio (e.g., ZigBee). Our unique emulation technique manipulates only the payload of WiFi packets, requiring neither hardware nor firmware changes in commodity technologies - a feature allowing zero-cost fast deployment on existing WiFi infrastructure. We de-signedand implemented WEBee with commodity devices (Atheros AR2425 WiFi card and MicaZ CC2420) and the USRP-N210 platform (for PHY layer evaluation). Our comprehensive evaluation reveals that WEBee can achieve a more than 99% reliable parallel CTC between WiFi and ZigBee with 126 Kbps in noisy environments, a throughput about 16, 000x faster than current state-of-the-art CTCs.
|Original language||English (US)|
|Title of host publication||MobiCom 2017 - Proceedings of the 23rd Annual International Conference on Mobile Computing and Networking|
|Publisher||Association for Computing Machinery|
|Number of pages||13|
|State||Published - Oct 4 2017|
|Event||23rd Annual International Conference on Mobile Computing and Networking, MobiCom 2017 - Snowbird, United States|
Duration: Aug 16 2017 → Aug 20 2017
|Name||Proceedings of the Annual International Conference on Mobile Computing and Networking, MOBICOM|
|Conference||23rd Annual International Conference on Mobile Computing and Networking, MobiCom 2017|
|Period||8/16/17 → 8/20/17|
Bibliographical noteFunding Information:
This work was supported in part by the NSF CNS-1444021, NSF CNS-1718456 and NSF China 61672196. We sincerely thank our shepherd Shyam Gollakota and anonymous reviewers for their valuable comments and feedback.
© 2017 Association for Computing Machinery.
- Cross technology communication
- Signal emulation
- WiFi OFDM
- ZigBee OQPSK