Nurul Islam

Work place: Dept. of mathematics, Islamic University, Kushtia-7000, Bangladesh

E-mail: nuru_math_iu@yahoo.com

Website:

Research Interests: Image Compression, Image Manipulation, Image Processing, Analysis of Algorithms, Numerical Analysis

Biography

Md. Nurul Islam has been received the B.Sc. and M.Sc. degree in mathematics from Jahangirnagar University, Savar, Dhaka. Currently he is a lecturer of the department of Mathematics, Islamic University, Kushtia-7003, Bangladesh. His areas of interest include Image Processing, Fluid Mechanics, Numerical Analysis & wireless communication.

Author Articles
Design and Development of PC Based Data Acquisition System for Radiation Measurement

By M. A. A. Mashud Md. Shamim Hossain Nurul Islam Md. Serajul Islam

DOI: https://doi.org/10.5815/ijigsp.2013.07.05, Pub. Date: 8 Jun. 2013

A PC based data acquisition was designed and developed using GM detector and a programmable microcontroller 16F876 of PIC family. This unit was calibrated with the standard Canberra Counter. It gave prompt response directly and has low power consumption. It was tested for gamma ray measurement to continuously monitor a radiological resulting from the natural and man-made sources that threat site security and human health. The system was simple to use, required no additional hardware and allows the selection of data. The collected data were easily being exported to a PC via parallel port. A "C" language program was developed to control the function of the entire system, using PCWH compiler.

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Study the One-bit Hard Combination Scheme on Cognitive Radio Users

By Shamim Hossain Mohammad Mamunur Rashid Nazrul Islam Abdullah-Al-Mashud Nurul Islam

DOI: https://doi.org/10.5815/ijcnis.2013.02.07, Pub. Date: 8 Feb. 2013

This paper describes the performance of one-bit hard combination scheme of cooperative spectrum sensing for different number of cognitive radio users. We evaluate cooperative spectrum sensing by simulating OR rule as a hard combination data fusion rule. Energy detector is used to observe the presence of primary user (PU) signal. It improves the probability of detection by collaborating to detect PUs signal in cognitive radio (CR) system. Simulation result shows that the probability of missed detection is decreasing for both conventional hard combination and 1-bit hard combination scheme with OR rule correspondingly with increasing the probability of false alarm. It is shown that 1-bit scheme has much better performance than the conventional hard combination scheme. This is also shown that the probability of missed detection is decreased even though CR user is increased. Here missed detection probability is decreased when the number of user increases.

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