Title :
Analysis of a multi-access scheme and asynchronous transmit-only UWB for wireless body area networks
Author :
Keong, Ho Chee ; Yuce, Mehmet R.
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Univ. of Newcastle, Callaghan, NSW, Australia
Abstract :
Ultra Wideband (UWB) has many favorable factors for use in a wireless body area network application. The major drawback is the high power consumption of an UWB receiver. One solution to address this problem is to use a transmit-only UWB sensor node. In this paper, we propose a multi-access scheme that is suitable for asynchronous transmit-only UWB wireless body area networks (UWB-WBAN). Each sensor attached on the patient under monitoring is assigned a unique number of UWB pulses per data bit. The number of UWB pulses assigned to the sensors is optimized to improve the bit error rate and system reliability. Simulation shows that through careful selection of the number of pulses for the sensors, it is possible to maintain almost similar bit error probability, regardless of the distance from the receiver.
Keywords :
biomedical telemetry; body area networks; error statistics; health care; multi-access systems; patient monitoring; radio receivers; ultra wideband communication; wireless sensor networks; UWB receiver; UWB-WBAN; asynchronous transmit-only UWB; bit error rate; multiaccess scheme; patient monitoring; system reliability; wireless body area networks; Computer Communication Networks; Computer Simulation; Humans; Monitoring, Physiologic; Telemetry; Vital Signs;
Conference_Titel :
Engineering in Medicine and Biology Society, 2009. EMBC 2009. Annual International Conference of the IEEE
Conference_Location :
Minneapolis, MN
Print_ISBN :
978-1-4244-3296-7
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2009.5333616