Harmony: Saving Concurrent Transmissions from Harsh RF Interference

Xiaoyuan Ma, Peilin Zhang, Ye Liu, Carlo Alberto Boano, Hyung-Sin Kim, Jianming Wei, Jun Huang

Research output: Contribution to conferencePaperpeer-review


The increasing congestion of the RF spectrum is a key challenge for low-power wireless networks using concurrent transmissions. The presence of radio interference can indeed undermine their dependability, as they rely on a tight synchronization and incur a significant overhead to overcome packet loss. In this paper, we present Harmony, a new data collection protocol that exploits the benefits of concurrent transmissions and embeds techniques to ensure a reliable and timely packet delivery despite highly congested channels. Such techniques
include, among others, a data freezing mechanism that allows to successfully deliver data in a partitioned network as well as the use of network coding to shorten the length of packets and increase the robustness to unreliable links. Harmony also introduces a distributed interference detection scheme that allows
each node to activate various interference mitigation techniques only when strictly necessary, avoiding unnecessary energy expenditures while finding a good balance between reliability and timeliness. An experimental evaluation on real-world testbeds shows that Harmony outperforms state-of-the-art protocols in
the presence of harsh Wi-Fi interference, with up to 50% higher delivery rates and significantly shorter end-to-end latencies, even when transmitting large packets.
Original languageEnglish
Number of pages10
Publication statusPublished - 6 Jul 2020
EventIEEE International Conference on Computer Communications: INFOCOM 2020 - Virtual Conference, Virtual, Toronto, Canada
Duration: 6 Jul 20209 Jul 2020


ConferenceIEEE International Conference on Computer Communications
CityVirtual, Toronto
Internet address

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science(all)

Fields of Expertise

  • Information, Communication & Computing


Dive into the research topics of 'Harmony: Saving Concurrent Transmissions from Harsh RF Interference'. Together they form a unique fingerprint.

Cite this