'Technical University of Kosice, Faculty of Electrical Engineering and Informatics'
Doi
Abstract
Nowadays, demand for low power, small, mobile and flexible computing machines that interconnects are growing rapidly. This
study highlights internet of things (IoT) model regarding sensor node discovery and IPV6 framework using 6LoWPAN. Contiki
network simulator (cooja) was used to examine the performance of the proposed network. The simulator was chosen because it
provides good graphical user interface environment and allow rapid simulation setup found to be best in simulating network
involving 6LoWPAN. Three experiments were carry out with the network topology designed to have 3, 7 and 5 motes respectively.
The parameters considered in the simulation were throughput and packet loss which were examined using packet generation rate of
1 to 50 packet/sec with a constant delay. GET requests was sent to the humidity and temperature sensor motes running CoAP
servers, and the corresponding throughput were observed in each case per experiment, it was observed that there was a 10 packet
per second increase before it finally dropped This was because of the packet loss due to the increase in traffic. GET request was
sent to motes to obtain the packet loss and the packet that were not acknowledged determined the packet loss. In this study, the
performance of the proposed model in terms of throughput and packet loss was studied and the expected results will aid in planning
6LoWPAN network, A transition flow diagram was evolved for this work to represent packet routing process