Computer networks (3rd ed.)
An engineering approach to computer networking: ATM networks, the Internet, and the telephone network
An adaptive energy-efficient MAC protocol for wireless sensor networks
Proceedings of the 1st international conference on Embedded networked sensor systems
WiseMAC: an ultra low power MAC protocol for the downlink of infrastructure wireless sensor networks
ISCC '04 Proceedings of the Ninth International Symposium on Computers and Communications 2004 Volume 2 (ISCC"04) - Volume 02
Ultra-low duty cycle MAC with scheduled channel polling
Proceedings of the 4th international conference on Embedded networked sensor systems
Energy-efficient low duty cycle MAC protocol for wireless body area networks
IEEE Transactions on Information Technology in Biomedicine - Special section on body sensor networks
High-resolution, low-power time synchronization an oxymoron no more
Proceedings of the 9th ACM/IEEE International Conference on Information Processing in Sensor Networks
On the interaction of clocks, power, and synchronization in duty-cycled embedded sensor nodes
ACM Transactions on Sensor Networks (TOSN)
Proceedings of the 8th ACM Conference on Embedded Networked Sensor Systems
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This paper presents an ultra low power MAC designed for in-body implant network. We show how an in-body implant network, has its own unique set of requirements (priority, latency, throughput etc.) which are not addressed by generic BAN(body area network) protocols which are designed assuming identical sensors. By choosing a particular use case, we demonstrate how we can exploit disparities inherent in a typical implanted BAN to enable ultra low power operation which also meets other (often) competing requirements. We present a new MAC scheme, which allows ultra low power operation by handling the nodes in accordance to their power and latency requirements. We present a new scheme for deriving analytically the power-optimised TDMA frame parameters like beacon interval and discuss solutions to manage synchronisation overhead. Equations for deriving the duty-cycling efficiency are presented and the packet error rate is calculated for the in-body wireless channel. Our results and simulations show that the protocol outperforms best of reported MACs and for low data rate sensors (typical of BAN) our MAC allows close to standby limit power consumption.