Investigation On The Peer-To-Peer Connectivity Of Short Range Devices

Joe, Clario (2018) Investigation On The Peer-To-Peer Connectivity Of Short Range Devices. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

A short range device can be used in an emergency communication due to natural disasters for a safe and rescue operation. This project focus on the algorithm for a peer-to-peer connectivity. The short range device requires the best algorithm for emergency communication to be used on a peer-to-peer connection. Short range devices in the market are lower in number especially devices that able to send a simple text message without using mobile network or the Internet. The raw algorithm for this device has a limitation of sending text but capable of setting up a connection between two devices. So, the objective of this project is to study and investigate algorithms for a peer-to-peer connection between two SRDs using RFM69 915MHz packet radio and Raspberry Pi 2 Model B+, then analyze the best method and technique of algorithms for the peer-to-peer connection. The project is carried out by first study the architecture of both RFM69HCW packet radio and Raspberry Pi 2 Model B+, then develop the algorithm and simulate the program to observe the connection time of all algorithms. All the algorithms design is constructed and simulated after the hardware is built. The simulation results in each stage of the projects are documented in this thesis. From the final algorithm design, the connection time is 3.24 seconds which 1.46 seconds faster than a made prototype. The final algorithm design also shows a slower receiving time to receive a text than a made prototype. The delay occurs in the final algorithm and future improvement is needed to cut or decrease time delay in the algorithm.

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