Research challenges in wireless networks of biomedical sensors
Proceedings of the 7th annual international conference on Mobile computing and networking
Recent Advances and Future Trends in Low Power Wireless Systems for Medical Applications
IWSOC '05 Proceedings of the Fifth International Workshop on System-on-Chip for Real-Time Applications
TARA: thermal-aware routing algorithm for implanted sensor networks
DCOSS'05 Proceedings of the First IEEE international conference on Distributed Computing in Sensor Systems
Towards Power Efficient MAC Protocol for In-Body and On-Body Sensor Networks
KES-AMSTA '09 Proceedings of the Third KES International Symposium on Agent and Multi-Agent Systems: Technologies and Applications
On PHY and MAC performance in body sensor networks
EURASIP Journal on Wireless Communications and Networking - Special issue on enabling Wireless Technologies for Green Pervasive Computing
MAC hurdles in body sensor networks
ICACT'09 Proceedings of the 11th international conference on Advanced Communication Technology - Volume 2
Wireless Innovations as Enablers for Complex & Dynamic Artificial Systems
Wireless Personal Communications: An International Journal
Trends and challenges in LDPC hardware decoders
Asilomar'09 Proceedings of the 43rd Asilomar conference on Signals, systems and computers
A Comprehensive Survey of Wireless Body Area Networks
Journal of Medical Systems
A Secure RFID-based WBAN for Healthcare Applications
Journal of Medical Systems
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IEEE 802.15 established a new working group, wireless body area networks (WBAN), to develop short range wireless technology in and around human body recently. This paper investigates networking issues in implant communications of WBAN. The object is better understanding of medical implant sensor networks and how to start WBAN's work. We applied IEEE 802.15.4b and 802.15.4a-chirp spread spectrum (CSS) for implant communications. We found two issues: clear channel assessment of implant devices and adjacent-channel interference from free space signals. Both of them can be attributed to the rapid attenuation of electromagnetic wave through tissues. Therefore the carrier sense multiple access mechanism and transmit mask of 802.15.4b cannot be directly adopted. The modulation of 802.15.4a-CSS is a good reference to WBAN. Besides, a simple two-hop protocol which uses a body surface forwarder was presented for long distance wireless implant communications.