A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Mohamed Abbas, A.
- Performance Evaluation Study of Intelligent Vehicular Ad Hoc Networks
Authors
1 Department of Computer Applications, B.S. Abdur Rahman Crescent Engineering College, Vandalur, Chennai-600048, Tamilnadu, IN
2 Department of Computer Applications, B.S. Abdur Rahman Crescent Engineering College, Vandalur, Chennai-600048, Tamilnadu, IN
Source
Wireless Communication, Vol 2, No 8 (2010), Pagination: 232-238Abstract
Recently, vehicular networks have begun to attract much attention in industry as well as academia. The IEEE 802.11p is known as Wireless Access in Vehicular Environment (WAVE) to provide the vehicle-to-vehicle and vehicle-to-infrastructure communications. The objective of this paper is to give a study and compare the protocols IEEE 802.11p with IEEE 802.11a. NS2 simulation framework has been developed to evaluate the performance of wireless access technologies and study the packet loss occurred during transmission. Also, this framework is developed to meet the requirements for vehicle to infrastructure communications and it is extended to vehicle to vehicle communications for vehicular ad hoc networks.Keywords
Dedicated Short Range Communications, Wireless Access in Vehicular Environment, IEEE 802.11p.
- Haemoglobin Detection in Blood by Signal to Image Scanning using Photo-Plethysmo-Graphic-Technique (PPG)
Authors
1 Department of ECE, Vel Tech Multitech, Avadi, Chennai – 6000 62, Tamil Nadu, IN
Source
Indian Journal of Science and Technology, Vol 9, No 1 (2016), Pagination:Abstract
Background/Objectives: This paper aims to measure hemoglobin content in blood using Photo-Plethysmo-Graphic (PPG) signals. Methods/Statistical Analysis: An analysis of Photo-Plethysmo-graphic signals is done by illuminating a monochromatic light using Near Infra-Red (NIR) mounted on finger or earlobe. Calculation of hemoglobin content is derived using the attenuation of light through skin-bone-tissue-blood in that extremity, well known extinction coefficients of hemoglobin and data collected from the clinical study. The signal has been recorded by Sigview software and data to be fetched for computation by Photo-Plethysmo-Graphic (PPG) algorithm. The result of Photo-Plethysmo-Graphic (PPG) is taken for regressive analysis and finally the hemoglobin content has been determined. Findings: The proposed method can be used in medical labs for continuous measuring of haemoglobin values. Measurement of hemoglobin content in blood not only indicates the health of a patient but also helps a physician to decide on the course of treatment of many diseases.The method of measurement in vogue requires the withdrawal of blood from veins and analysis of the blood sample in a biochemistry laboratory. Application/Improvements: This work can be used in bio chemical laboratories for haemoglobin detection non-invasively. The System accuracy can be further enhanced by reliability of components used.
Keywords
Haemoglobin, Photo-Plethysmo-Graphic (PPG)Full Text
