Inlämning av Examensarbete / Submission of Thesis

Bharath Ranganathan , pp. 72. ING/School of Engineering, 2012.

The work

Författare / Author: Bharath Ranganathan
bharathr.ranganathan@gmail.com
Titel / Title: Propagation Model for Fresh Food: Fundamental Principle and Measurement Analysis
Abstrakt Abstract:

The global fresh food tracking system (FFT) is widely used service based on monitoring a set of primary environmental conditions during the transportation of fresh food using the GSM, RFID and WSN. In order to provide design guidelines for such devices, it is therefore important to develop effective channel model and see how the fresh food affects the transmitted electromagnetic signals.
In this thesis, we are mainly focusing on the channel measurements for different boxes of fresh food (potatoes) by measuring the channel at 2.4GHz and 865MHz in anechoic chamber and in indoor environment. Considering the optimum transmitter and receiver antenna, the Vector Network Analyzer and Spectrum analyzer are used for the collecting a substantial amount of measurements. During the measurements, both the channel impulse response and channel time variation was considered for computing different metrics that are mainly based on large scale fading and small scale fading. The simulation of channel model was done using the log-distance pathloss model and two filtered Gaussian model on Matlab. Finally, the measurement results were compared with simulated results for different boxes of fresh food and both models showed good match with obtained measurements, thus producing an efficient channel model.

Ämnesord / Subject: Elektroteknik - Electrotechnology

Nyckelord / Keywords: Narrowband Measurements, Propagation, Impulse response, pathloss

Publication info

Dokument id / Document id: houn-8ykdy7
Program:/ Programme Magisterprogram i Elektroteknik / Master of Science in Electrical Engineering
Registreringsdatum / Date of registration: 09/28/2012
Uppsatstyp / Type of thesis: Masterarbete/Master's Thesis (120 credits)

Context

Handledare / Supervisor: Abbas Mohammed
Examinator / Examiner: Wlodek Kulesza
Organisation / Organisation: Blekinge Institute of Technology
Institution / School: ING/School of Engineering

+46 455 38 50 00

Files & Access

Bifogad uppsats fil(er) / Files attached: bth2012ranganathan.pdf (1504 kB, öppnas i nytt fönster)