Evaluation of Preamble Detection in ETSI SmartBAN PHY

This chapter provides an evaluation of preamble detection in the ETSI Smart Body Area Networks (SmartBAN) physical layer (PHY). The system specifications for a PHY and a media access control layer (MAC) in SmartBAN, which is a standard for medical and health care advanced by the European Telecommunications Standards Organization (ETSI), were issued in April 2015. In the PHY, the packet structure has a two-octet preamble used for timing synchronization and so on. However, the preamble detection cannot be sufficiently performed except in a very good channel condition because the preamble structure is too simple. For the reason, we propose to add a Start Frame Delimiter (SFD) to correctly detect the position of the header. Computer simulations show that preambles with SFD consisting of an orthogonal M-sequence have better performance than that of SmartBAN and so on, especially under IEEE model CM3.