Abstract
Due to the gathering of sickrooms and consultation rooms in almost all hospitals, the performance of wireless devices system is deteriorated by the increase of collision probability and waiting time. In order to improve the performance of wireless devices system, relay is added to control the access point and then the access of devices is distributed. The concentration of access point is avoided and then the performance of system is expected to be improved. The discrete time Markov chain (DTMC) is proposed to calculate the access probability of devices in a duration time slot. The collision probability, throughput, delay, bandwidth and so on are theoretically calculated based on the standard IEEE802.15.6 and the performance of the system with and without relay is compared. The numerical result indicates that the performance of the system with control access point is higher than that of the system without control access point when the number of devices and/or packet arrive rate are high. However, the system with control access point is more complicated. It is the trade-off between the performance and the complication.
Highlights
A lot of devices access the wireless local area network (WLAN) base station that is close to the consultation rooms (Wireless LAN 2 in Figure 1), whereas a few devices access the WLAN base station that is far from consultation rooms (Wireless LAN 1)
According to an emergency of wireless body area network (WBAN), the standard IEEE802.15.6 was established in Feb. 2012 [1]
We introduce a brief of Physical layer (PHY) and Media Access Control (MAC) layers of standard IEEE802.15.6
Summary
Sickrooms and consultation rooms are respectively gathered at one place for convenience of patients. It may be good for patients and hospital sites, on the view point of wireless system, there is a problem. Since medical devices access the wireless local area network (WLAN) base station via wireless chan-. (2015) Control Access Point of Devices for Delay Reduction in WBAN Systems with CSMA/CA. The access of devices concentrates at Wireless LAN 2, the probability of collision increases, and the throughput decreases, the delay increase.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
