This paper describes current state-of-the-art research on low power wireless systems for medical applications. Distinct design criteria and challenges in this area are addressed. A study of existing wireless technologies and their key applications are presented. A brief assessment of future trends for wireless medicine with a focus on emerging technologies is provided. Finally, a number of different energy-scavenging techniques for the future development of autonomous wireless nodes are reviewed.
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Townsend et al. (2005) studied this question.
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