Wireless Security:

A good reference in this field provides a wireless network for security medical devices or a network of them as well - MedMon: Securing medical devices through wireless monitoring and anomaly detection:-

• New truly non-invasive defense against wireless attacks based on wireless monitoring and multi-layer anomaly detection. Medical security monitor performs passive monitoring of device and intercepts only when anomaly is detected. Ideal for Inter-IWMDs communication.
• Security is contained in security policies which have mainly two layers of abstraction: physical and behavioral.Physical involves parameters like time of arrival, differential TOA, received signal strength indicator, angle of arrival. Behavioral involves data change, rate of data change, condition specific values.
• Security policy: Medmon models remote control and meter communication as behavioral anomalies and jam any command signal by default or raises warning for any meter or remote control data transmission.