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In this paper, a fuzzy-logic-based fault detection system is designed for a medical Internet of Nano Things architecture. The goal of this system is to detect the root cause and severity of the faults occurred in the in-body nanonetwork. Since nanomachines have very limited capabilities, the sampled data from the in-body nanonetwork is sent to cloud servers by means of an on-body micro-gateway. The fuzzy fault detection system was designed based on two well-known methods including Mamdani and Takagi–Sugeno–Kang (TSK) fuzzy systems. The performance of the proposed approach is evaluated on a theoretical model of medical in-body nanonetwork from the literature through in silico study. This nanonetwork includes eleven types of nanomachines which cooperate with each other within the arterial wall and interact with low-density lipoprotein (LDL), drug and signaling molecules in order to prevent the formation and development of Atherosclerosis plaques. Any fault in these nanomachines can highly take negative effect on treatment efficiency. The results of computer simulation and comparative study on 37 atherosclerosis patients demonstrate how the proposed approach could successfully detect the root cause and severity of the faults occurred in the nanonetwork. [ABSTRACT FROM AUTHOR]

Abstract: The implementation of mobile ad hoc networks (MANETs) is steadily increasing. MANETs are especially popular in locations that lack a fixed communication infrastructure. To achieve zero-configuration MANETs, as well as quick and easy access to network resources, resources must be well managed by the network. This paper proposes a hierarchical service discovery and advertisement protocol (HSDAP) implemented in the routing layer. HSDAP queries services by piggybacking service REQuest (SREQ) packets on routing packets to reduce overhead and energy consumption. We extend the cluster-based routing protocol (CBRP) to improve service management hierarchy. Simulation results show that adding service discovery and advertisement (SDA) functions to CBRP does not significantly affect overhead. SDA overhead, routing overhead, energy consumption, and SDA delay are significantly less than the extended zone routing protocol. Furthermore, SDA hit ratio of the proposed protocol is greater than 86% for various levels of mobility. The proposed HSDAP is robust and scalable. [ABSTRACT FROM AUTHOR]