A Priority Weighted Round Robin scheduling strategy for a WBAN based healthcare monitoring system
Healthcare monitoring systems (HMS) are becoming emerging and revolutionary technology for ambulatory and bedridden patients. They are also expected to offer home assistance to elderly persons while providing qualitative and low cost services. As Wireless Body Area Networks (WBANs) are designed to be part of monitoring systems, a WBAN based HMS might implement Quality of service (QoS) tools to guarantee some physiological data requirements such as data loss and delay as healthcare applications are time sensitive and loss sensitive. This paper focuses on mitigation of delay at the coordinator of a WBAN based HMS for emergency and medical traffic flows by proposing a new scheduling strategy named PWRR (Priority Weighted Round Robin) The PWRR as a combination of a priority scheduling and a weighted round robin utilizes the user priorities of physiological data within the WBAN to determine how to schedule and send them off the WBAN. Analytical and simulation results show that PWRR strategy offers much improvements in terms of delay of emergency and medical data flows at the coordinator compared to the FIFO (first in fist out) strategy.
2016 13th IEEE Annual Consumer Communications Networking Conference (CCNC)