Minimising the effect of WiFi interference in 802.15.4 wireless sensor networks
International Journal of Sensor Networks
Experimental Study of the Impact of WLAN Interference on IEEE 802.15.4 Body Area Networks
EWSN '09 Proceedings of the 6th European Conference on Wireless Sensor Networks
Minimizing 802.11 interference on ZigBee medical sensors
BodyNets '09 Proceedings of the Fourth International Conference on Body Area Networks
Surviving wi-fi interference in low power ZigBee networks
Proceedings of the 8th ACM Conference on Embedded Networked Sensor Systems
Mobile Networks and Applications
Hi-index | 0.00 |
Wireless sensors operating in unlicensed frequency bands have been proposed for monitoring physiological signals during surgical procedures in the operating room (OR). The IEEE 802.15.4/ZigBee wireless interface in the 2.4 GHz industrial-scientific-medical (ISM) band has been widely adopted for the implementation of radio transceivers (motes) suitable for medical wireless sensors. However, other medical devices in the OR transmit medical information in the same frequency band through IEEE 802.11/WiFi interfaces. Therefore, the introduction of wireless sensors in current medical practice is conditioned to the assurance of the electromagnetic compatibility (EMC) with the collocated medical devices already operating in the same frequency band. This is especially critical with life-supporting equipment, which cannot be interfered with during medical procedures. This paper presents the evaluation of the reliability of the transmission of blood pressure (BP) data from an intra-aortic balloon pump (IABP) console through an IEEE 802.11/WiFi interface when a collocated IEEE 802.15.4/ZigBee mote is transmitting. The Bland-Altman plotting method was used to assess the effects of cochannel and adjacent-channel interference. The results show that EMC is assured between both systems.