Listen and Talk in IEEE 802.15.4 with Dual Radio

Swen Leugner, Horst Hellbruck


In wireless sensor networks, the license-free 2.4 GHz industrial medical and scientific band is increasingly popular. The popularity of this license-free band results in growing heterogeneous wireless networks in which the channel state detection becomes difficult. In this paper, we present a novel solution to enable Listen and Talk with an IEEE 802.15.4 dual radio transceiver sensor node, to provide a channel state detection. In contrast, to Listen before Talk or Clear Channel Assessment, our approach named Advanced Clear Channel Assessment talks and listens, which means checking the channel state during transmission. We show that Advanced Clear Channel Assessment increases the channel busy detection compared to Clear Channel Assessment by a factor of six. Furthermore, we provide a novel metric to compare detection algorithms for channel state based on threshold levels

Original languageEnglish
Title of host publication2018 Advances in Wireless and Optical Communications (RTUWO)
Number of pages5
Publication date24.12.2018
Article number8587880
ISBN (Print)978-1-5386-5559-7
ISBN (Electronic)978-1-5386-5558-0
Publication statusPublished - 24.12.2018
Event4th International Scientific Conference on Advances in Wireless and Optical Communications - Riga, Latvia
Duration: 15.11.201816.11.2018
Conference number: 143861


Dive into the research topics of 'Listen and Talk in IEEE 802.15.4 with Dual Radio'. Together they form a unique fingerprint.

Cite this