To mitigate the issue of cross-technology interference (CTI) under dense wireless, cross-technology communication (CTC) was recently proposed, which enables direct communication among heterogeneous wireless technologies. We present SymBee, a novel ZigBee to WiFi CTC with symbol-level encoding for performance breakthrough from packet-level state-of-the-arts. SymBee is uniquely built on the new insight on ZigBee-WiFi physical layer cross-observability - i.e., the output on WiFi when fed with ZigBee signal (due to frequency overlap). This is analyzed experimentally and theoretically through rigorous derivations, from which the key innovation in SymBee design, i.e., payload encoding, stems; Conveying data across technologies is as simple as putting specific symbols in ZigBee packet payload, such that they yield unique and easily detectable patterns when cross-observed at WiFi. This symbol-level encoding is fully compatible with any commodity ZigBee device. Decoding at WiFi is a light-weight function that recycles the output from idle listening, thereby minimizing the computation while keeping compatibility to WiFi standard. SymBee is extensively evaluated both theoretically and experimentally through testbed evaluations on six distinct locations including outdoor. The result demonstrate that SymBee reaches the throughput of up to 31.25kbps, 145.4× faster than the state-of-the-art.
|Original language||English (US)|
|Title of host publication||Proceedings - 2018 IEEE 38th International Conference on Distributed Computing Systems, ICDCS 2018|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Number of pages||11|
|State||Published - Jul 19 2018|
|Event||38th IEEE International Conference on Distributed Computing Systems, ICDCS 2018 - Vienna, Austria|
Duration: Jul 2 2018 → Jul 5 2018
|Name||Proceedings - International Conference on Distributed Computing Systems|
|Other||38th IEEE International Conference on Distributed Computing Systems, ICDCS 2018|
|Period||7/2/18 → 7/5/18|
Bibliographical noteFunding Information:
We sincerely thank the anonymous reviewers for their valuablecomments and feedback. This work was supported by part of NSF CNS-1717059, NSF CNS-1525235, NSF CNS-1718456 and NSF China 61629302.
© 2018 IEEE.
- Cross technology Communication
- Heterogeneous Wireless Network
- Internet of Things
- Physical Layer