No abstract

This paper proposes an advanced routing method in the purpose of increasing IoT routing device's power-efficiency, which allows to centralize routing tables computing as well as to push loading, related to routing tables computation, towards the Cloud environment at all. We introduced a phased solution for the formulated task. Generally, next steps were performed: stated requirements for the system with Cloud routing, proposed possible solution, and developed the whole system's structure. For a proper study of the efficiency, the experiment was conducted using the developed system's prototype for real-life cases, each represents own cluster size (several topologies by each size), used sizes are: 5,

Wireless multi-hop communication is used widely today though there are many uneven issues related to the process of organizing the transmission, e.g., collisions, caused by simultaneous transmission of two objects that are equally distant toward opposite directions from the receiver, and so on. To address such cases, there are solutions, such as CSMA or NB-IoT. The point is that common solutions propose to use an arbiter (e.g. AP), which controls transmission between hops. The main benefit of the approach is the simplicity, but it lacks flexibility. In other cases, if the arbiter is absent, common methods use intense sequential access to the spectrum and queued control over the radio resource. However, these techniques have selective spectrum usage, i.e., the reserved bandwidth is used only partially. In separate cases, these may impact security and stability as well. The paper discusses a new concept: get rid of arbiter and organize an Ad-hoc network, where resources are dynamically distributed, depending on the needs. The only limitation is that the medium must be able to hold enough bandwidth to organize a set of separate carriers, we call tunnels, for parallel communication. Normally, tunnels are uniformly occupied by hops. So, the primary goal of this work is to develop a new principle for tunnel selection by two or more nodes and define the impact of its parameters onto the resulting performance. The tunnel is then used as a detached medium, shared exclusively between these nodes for communication. Thus, two regimes can be outlined: the regime of picking an appropriate tunnel and regime of communication. In the paper, we will discuss the regime of picking the tunnel, i.e., present the principle that allows doing that, study the influence of its technical parameters on its tactical parameters, and define best conditions for its operation. As a result, we proposed method of time distributed media access control for picking carrier (tunnel), which is more flexible compared to the current solutions as it does not require an arbiter and allows using tunnels simultaneously as well as change them dynamically.