A cognitive radio system for e-health applications in a hospital environment

Authors:
Phond Phunchongharn;Ekram Hossain;Dusit Niyato;Sergio Camorlinga
Affiliations:
University of Manitoba;University of Manitoba;Nanyang Technological University;University of Manitoba and TRLabs
Venue:
IEEE Wireless Communications
Year:
2010

Citing 5
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Abstract

Wireless communications technologies are used to support a variety of electronic health applications to transfer medical data and patient information. However, using wireless communications technology in a healthcare environment poses two major challenges. First, the electromagnetic interference caused to biomedical devices by wireless devices could critically affect their performance. Second, since different types of e-health applications have different priorities, access to the wireless channel by the corresponding devices needs to be prioritized. In this article we introduce a novel cognitive-radio-based approach to address these challenges in wireless communications for e-health applications in a hospital environment. First, the requirements for a wireless communications system to be used in a healthcare environment are identified, and potential applications of cognitive radio technology for e-health applications are discussed. Then a cognitive radio system is proposed for e-health applications in a hospital environment, which protects the medical devices from harmful interference by adapting the transmit power of wireless devices based on EMI constraints. An EMI-aware handshaking protocol is proposed for channel access by two different types of applications with different priorities. The performance of this cognitive radio system for e-health applications is evaluated through simulations.