In-vivo communication using blood vessels as the transport channel

An in-vivo body network is an interconnection of implanted medical devices without a wired or wireless connection. In this paradigm, the body´s own circulatory network is utilized as the channel. Instead of electrical or electromagnetic signals, inert nano particles are used as the signal carrier. A framework for in-vivo communication along with a computer based model is developed. Simulation results with a transmitter and receiver placed at two ends of the human aorta is presented. Blood vessels behave similar to electromagnetic channels. Re-circulation and dispersion results in inter symbol interference (ISI) and delay spread. On-off keying (OOK) modulation with receiver equalization is shown to provide a reliable in-vivo communication link.