Essays about: "RSSI"

Showing result 6 - 10 of 68 essays containing the word RSSI.

1. 6. Antenna as a sensor for sensing available LTE networks

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Barath Kumar Sathish Kumar; [2022]
   Keywords : Radio Frequency energy harvesting; Antenna as a sensor; Long-Term Evolution; Rectifier; Printed Circuit Board; Altium Designer; Matching network; Voltage multiplier; Schottky diodes; Multiband LTE antenna; Ambient energy harvesting; Low power Internet of Things; Wireless power transfer; Radiofrekvensenergiskörd; Antenn som sensor; LTE; Likriktare; Printed Circuit Board; Altium Designer; Matchande nätverk; Spänningsmultiplikator; Schottky-dioder; Multiband LTE-antenn; Omgivande energiskörd; Lågeffekt Internet of Things; Trådlös kraftöverföring;

   Abstract : This thesis primarily deals with the concept of designing an antenna based device to harvest energy from Radio Frequency (RF) and using the harvested energy to sense the available Long Term Evolution (LTE) network in order for the Internet of Things (IoT) devices to connect to the network for the purpose of transmitting and receiving data. Secondarily the importance of this project is targeting how to conserve battery power in an IoT device and extend it’s lifetime. READ MORE

3. 7. Automatic retrieval of data for industrial machines with handheld devices : Positioning in indoor environments using iBeacons

   University essay from Mittuniversitetet/Institutionen för informationssystem och –teknologi

   Author : Linus Sjöbro; [2021]
   Keywords : RSSI; KNN; fingerprints; indoor positioning; Apple; iOS; application; iBeacon; Beacon;

   Abstract : Positioning of mobile phones or other handheld devices in indoor environments is hard because it’s often not possible to retrieve a GPS-signal. Therefore, other techniques need to be used for this. Despite the difficulties with indoor positioning, the Swedish mining company LKAB want to do exactly this in their processing plants. READ MORE

4. 8. Study of antenna arrays for direction finding

   University essay from Umeå universitet/Institutionen för fysik

   Author : William Eriksson Selin; [2021]
   Keywords : aoa; aod; bluetooth 5.1; antenna; array; direction; finding; estimation; MUSIC; subspace; aoa; aod; bluetooth; antenn; antennmatris; riktningsestimation; riktningsidentifiering; MUSIC;

   Abstract : The new Bluetooth standard (Bluetooth 5.1) contains direction finding specifications. Specifications for received signal strength indicator(RSSI) using measures of signal strength in order to give a sense of how far away an object is has been present in earlier versions. READ MORE

5. 9. Learned Multi-Sensor Indoor Positioning of Mobile Devices

   University essay from Lunds universitet/Matematik LTH

   Author : Christoffer Kjellson; [2021]
   Keywords : Indoor Positioning; Deep Learning; Fingerprinting; RSSI; Machine Learning; Pedestrian Dead Reckoning; Kaggle; Sensor Fusion; SDAE; LSTM; Technology and Engineering; Mathematics and Statistics;

   Abstract : Attenuation of the microwave signal used in the Global Positioning System (GPS) due to interaction with building structures complicates the task of accurate indoor positioning. For this reason, research on alternative approaches is being performed at universities and companies worldwide. READ MORE

6. 10. Indoor Positioning and Machine Learning Algorithms

   University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

   Author : Raavi Uttarwar; Julián Valentín; [2021]
   Keywords : Indoor Positioning; Machine Learning; Bluetooth Low Energy; Technology and Engineering;

   Abstract : This master thesis focuses around improving the efficiency and accuracy of existing indoor positioning systems with the help of Machine Learning (ML). Our work is based on Bluetooth Low Energy (BLE) v5.1. Position estimation is currently being carried out using the Least-Squares (LS) method in the framework. READ MORE