مسعود اصغری

The communication of nanometer-sized integrated devices called nanobots in the human body is very important for the realization of collaborative behaviors and complex healthcare tasks. To have a functional and feasible intrabody perpetual nanonetwork, communication energy saving is essential. In this paper, we investigate the impact of the integration of semipermanent wired clusters (SPWC) into intrabody wireless perpetual nanonetworks for reducing the total wireless traffic and saving the nanobots’ energy of the communication to improve the packet delivery ratio and reliability of the nanonetworks. We compare the proposed semi-permanent wired clusters with the previous work of opportunistic wired clusters (OWC) as well as the baseline nanonetwork without wired clusters. Two operation modes are proposed to manage the SPWC clusters which are SPWC with only one active receiver in a cluster and SPWC with all active receivers in a cluster. We investigate the performance impact of the proposed SPWC architecture in its two operation modes and compare them with the previous work of OWC as well as the baseline nanonetwork with extensive simulations. The impact of wired cluster size, wire length and nanobot density on the network performance are studied. The results show a significant packet delivery improvement of SPWC over the baseline and a relative improvement over OWC with fewer physical limitations,