Abstract
Technological advancements in microchips and medical sensors paved the way to the development of the Body Sensor Network research area, which for example allows to monitor the health status of an individual. The need to track the status of several persons simultaneously, like people working in a hostile environment or monitoring the performance of a sports team, led to the emergence of the Collaborative Body Sensor Network field. This chapter describes the general architectures of BSN and CBSN, their characteristics, applications, and the communication technologies involved to building and deploying such networks. A comparison between CBSN and BSN is also provided, before emphasizing the major challenges CBSNs must overcome to meet QoS measures and security requirements. We conclude this chapter by listing some of the open research problems that still need to be addressed in large-scale and dynamic CBSNs.
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