  Nano devices have great potential to play a vital role in future medical
diagnostics and treatment technologies because of its non-invasive nature and
ability to reach delicate body sites easily as compared to conventional
devices. In this paper, a novel concept of cooperative communication for
in-vivo nano-network is presented to enhance the communication among these
devices. The effect on the system outage probability performance is conducted
for various parameters including relay lacement, number of relays, transmit
power, bandwidth and carrier frequency. Results show approximately a 10-fold
increase in the system outage performance whenever an additional relay is
included in the cooperative network, hence show a great potential of using
cooperative communication to enhance the performance of nano-network at
terahertz frequencies.
