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Krishnan, Kishore V.
- Signal Processing Issues of Spectrum Sensing in Cognitive Radio
Abstract Views :184 |
PDF Views:3
Authors
Affiliations
1 Vellore Institute of Technology University, Vellore, IN
2 Kingston Engineering College, Vellore, IN
3 Vellore Institute of Technology University, Vellore, IN
1 Vellore Institute of Technology University, Vellore, IN
2 Kingston Engineering College, Vellore, IN
3 Vellore Institute of Technology University, Vellore, IN
Source
Wireless Communication, Vol 3, No 2 (2011), Pagination: 109-113Abstract
The electromagnetic radio spectrum is a natural resource. Effective Utilization of this natural resource is a Challenging task in Present Day Wireless Communication. Cognitive Radio is an emerging trend in wireless communication to Combat for spectral scarcity. Cognitive radio is an intelligent wireless communication system that is aware of its surrounding environment and uses the methodology of learning, and understanding from the environment and adapting to it. Advanced signal processing techniques are used in Cognitive Radio Network to achieve this intelligence. Spectrum Sensing is one of such a signal processing to identify spectrum holes which can be temporarily used without interfering Primary User. Every cognitive radio receiver is incorporated with Spectrum Sensing. There are various existing techniques to detect the spectrum of which some widely used are presented in this thesis.Keywords
CR-Cognitive Radio, CSD-Cyclic Spectrum Density, PSD-Power Spectrum Density, RF Spectrum-Radio Frequency Spectrum.
- Spectrum Management using Cognitive Radio for Safety and Security of Coal Mine Workers
Abstract Views :181 |
PDF Views:0
Authors
Affiliations
1 VIT University, Vellore - 632014, Tamil Nadu, IN
2 Galgotias University, Noida - 201310, Uttar Pradesh, IN
1 VIT University, Vellore - 632014, Tamil Nadu, IN
2 Galgotias University, Noida - 201310, Uttar Pradesh, IN
Source
Indian Journal of Science and Technology, Vol 9, No 44 (2016), Pagination:Abstract
Objectives: Underground mine communication is the most vital factor today to monitor different parameters continuously and to take necessary actions accordingly to mitigate all hazards that happen inside mines. Accidents in coal mines occur due to inadequacy of information from the mine environment due to inefficiency of existing phone systems. Methods/ Statistical Analysis: In this paper, cognitive radio technology is used in underground coal mines to wirelessly transmit crucial parameters such as temperature, humidity and methane gas levels to enhance the safety and security of coal mine workers. To depict cognitive radio, two communication channels, Bluetooth and RF have been used. These wireless channels are used to transmit data from the hardware circuit fitted on the miner’s gear to the ground control center. Findings: To test the working of proposed technique it is subjected to several test cases. Experiments have proved feasibility and good stability of the system. Using the proposed technology the network sensor scalability has been improved. Application/ Improvements: The deployment of a module of cognitive radio sensors is made on the miner’s gear to monitor the aforementioned parameters. Various traffic issues like routing algorithm, handoff problems are identified as the extension of the proposed cognitive radio networks.Keywords
Cognitive Radio (CR), Coal Mine, Monitoring System, Personal Protective Equipment (PPE), Tracking and Positioning, Wireless Sensor Networks (WSNs).Full Text