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Showing result 1 - 5 of 33 essays matching the above criteria.

1. 1. Designing a Novel RPL Objective Function & Testing RPL Objective Functions Performance

   University essay from Linnéuniversitetet/Institutionen för datavetenskap och medieteknik (DM)

   Author : Khalil Mardini; Emad Abdulsamad; [2023]
   Keywords : Routing protocol for low-power and lossy networks RPL ; Wireless Sensor Networks WSN ; The Internet of Things IoT ; Objective Function OF ; Low-Power and Lossy Networks LLNs ; Expected Transmission Count ETX ; Min- imum Rank with Hysteresis Objective Function MRHOF ; Packet Delivery Ratio PDR ; Directed Acyclic Graph DODAG ;

   Abstract : The use of Internet of Things systems has increased to meet the need for smart systems in various fields, such as smart homes, intelligent industries, medical systems, agriculture, and the military. IoT networks are expanding daily to include hundreds and thousands of IoT devices, which transmit information through other linked devices to reach the network sink or gateway. READ MORE

3. 2. Implementation of LPWAN protocols for Water Sense : Integration of LoRa and Contiki OS with the Rime stack

   University essay from Uppsala universitet/Signaler och system

   Author : Barry Dyi; [2022]
   Keywords : Contiki; LoRa; Telecommunications; Embedded Systems; WSN; IoT;

   Abstract : The purpose of this thesis rose from tackling a specific project led by Cybercom Group. Water Sense was proposed after municipalities expressed the need to conveniently conduct measurements on water in Swedish lakes, and remotely get access to these data. READ MORE

4. 3. Current measurements of low-power battery driven devices

   University essay from Uppsala universitet/Signaler och system

   Author : Marcus Wahlberg; [2022]
   Keywords : Current meter; current measurement; shunt resistor; auto-range; current-range;

   Abstract : A current meter has been designed, intended for surveillance of low-power battery driven devices with a large dynamic range in their current consumption. Among such devices may, for example, be nodes in a wireless sensor network (WSN). READ MORE

5. 4. Detecting and identifying radio jamming attacks in low-power wireless sensor networks

   University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

   Author : John Kanwar; [2021]
   Keywords : ;

   Abstract : Wireless sensor networks (WSNs) are used in all kinds of different sectors ranging from agriculture, environment, healthcare and the military. Embedded systems such as sensor nodes are low-power and consist of low memory, which creates a challenge for its security. One of WSN’s worst enemies is interference radio jamming attacks. READ MORE

6. 5. Survey of microcontrollers and short-range radio transceivers for wireless sensors

   University essay from Mittuniversitetet/Institutionen för elektronikkonstruktion

   Author : Ephrem Zewdu Yesitla; [2020]
   Keywords : Wireless Sensor Network WSNs ; RF-transceivers; wireless fidelity Wi-Fi ; Cortex-M4.;

   Abstract : A significant growth was witnessed in the field of Wireless Sensor Networks (WSNs), in the previous decade. The objective of this study has been Survey of micro controllers and short-range radio transceivers for wireless sensors and provide an extensive overview of micro controllers and RF-transceivers in the Market and compare the relevant properties for designing wireless sensor nodes. READ MORE