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Jinaga, B. C.
- An Optimized High-sensitivity Capacitive MEMS for Blood Pressure Measurement
Abstract Views :353 |
PDF Views:71
Authors
Affiliations
1 JNTU, Hyderabad, IN
2 EEE Department, Aurora’s Engineering College, Bhongir , Hyderabad, IN
3 Jawaharlal Nehru Technological University, Hyderabad, IN
1 JNTU, Hyderabad, IN
2 EEE Department, Aurora’s Engineering College, Bhongir , Hyderabad, IN
3 Jawaharlal Nehru Technological University, Hyderabad, IN
Source
Indian Journal of Science and Technology, Vol 1, No 4 (2008), Pagination: 1-4Abstract
A high-sensitivity capacitive pressure transducer with active processing circuit on the chip has been demonstrated and evaluated. The transducer configuration has been optimized by computer-aided simulation and design to achieve highest sensitivity for a given maximum dimension. The measured sensitivity of the devices is in the range of 50-150 MV/V mmHg, which is approximately one order of magnitude higher than the sensitivity of the piezoresistive pressure transducer of comparable size. Theoretical analysis also shows that sensitivity of the order of 1000 pV/V mmHg is also possible using the capacitive approach if the dimension of the device can be enlarged and the full-scale pressure range is lowered.Keywords
MEMS, Capacitive Blood Pressure, OptimizationFull Text
References
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- Performance Analysis of Data Negation Codes for Cognitive Radio
Abstract Views :91 |
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Authors
Affiliations
1 Department of ECE, Bhoj Reddy Engineering College for Women, Hyderabad, A.P, IN
2 Department of EIE, GITAM, Hyderabad, A.P, IN
3 Department of ECE, JNTUH, Hyderabad, A.P, IN
1 Department of ECE, Bhoj Reddy Engineering College for Women, Hyderabad, A.P, IN
2 Department of EIE, GITAM, Hyderabad, A.P, IN
3 Department of ECE, JNTUH, Hyderabad, A.P, IN
Source
International Journal of Scientific Engineering and Technology, Vol 2, No 4 (2013), Pagination: 233-238Abstract
Error Correcting Codes play an important role in maintaining a reliable link in the communication system. Error correcting codes are used to protect the system against errors introduced due to various reasons in the transmission media. These Codes enable the communication systems to have a reliable transmission over noisy channels. Cognitive Radio is a creative technology proposed to increase spectrum usage by allowing cognitive users to use the unused spectrum in changing environments. The Cognitive Radio (CR) technology will allow a group of potential users to identify and access available spectrum resources provided that the interference to the users for whom the band has been licensed is kept below a prescribed level. During the spectrum allocation for Primary user and cognitive user, lot of information may be lost due to random and burst errors and power issues. A secondary user (SU) can improve its data rate by increasing its transmission bandwidth while operating at low power and without creating destructive interference to the primary users (PUs). To achieve the acceptable error rate Forward error correction (FEC)control is done where received error rate is Controlled via Forward Transmission only. In this paper, a new Systematic Double Error Correcting Linear Block Code is proposed called the Data Negation codes. The performance of Data Negation codes for cognitive Radio is described in terms of Probability of undetected errors and also comparison of the proposed code is done with the existing Systematic Double error correcting Linear Block Code.Keywords
Cognitive Radios, Software Defined Radios, Primary User, Cognitive User and Spectrum Sensing.Full Text