Volume 4, Issue 1, September 2015

 

 

 

Range-Based Data Gathering Algorithm with a Mobile Sink in Wireless Sensor Networks

Pages: 65-75 (11) | [Full Text] PDF (REMOVED)
A Alhasanat, K Alhasanat, M Ahmed
Department of Computer Engineering / Faculty of Engineering, Al-Hussien Bin Talal University, Jordan
Department of Computer Science / Faculty of Information Technology, Middle East University, Jordan
Department of Computer Science / Faculty of Information Technology, Aqaba University of Technology, Jordan

Abstract -
Wireless Sensor Networks (WSNs) have beenemerged in many important aspects in the real world, suchas industry, agriculture, and military applications. As the mainchallenge that WSNs facing is the energy consumption, it isnecessary to investigate its suitability of using mobile sinks fordata collection in these networks. In this paper, therefore, anew data gathering technique with mobile elements referredto as Intersection Point of Communication Ranges (IPCR) isproposed. This method attempts to obtain the best trajectory ofthe mobile sink such that the data gathering latency is minimized.Simulation results presented in this study showed that the IPCRalgorithm has achieved the optimal Travel Sales-Man Problemalgorithm. In addition, the IPCR algorithm outperformed theConnectivity Based Data Collection (CBDC) algorithm in termsof data gathering latency and network throughput.
 
Index Terms - Wireless Sensor Network (WSN), Data Collection Algorithm, Received Signal Strength (RSS) and Mobile Sink

Citation - A Alhasanat, K Alhasanat, M Ahmed. "Range-Based Data Gathering Algorithm with a Mobile Sink in Wireless Sensor Networks." International Journal of Computer Engineering and Information Technology 4, no. 1 (2015): 65-75.

 

A Lightweight Wireless Home Appliances Control

Pages: 76-81 (6) | [Full Text] PDF (571 KB)
N Umelo, A Adekiigbe
Computer Engineering Department, Federal Polytechnic Ede, Ede, Osun State, Nigeria

Abstract -
This paper proposes a system that gives users the convenience of controlling their home appliances from anywhere in the world as far as there have GSM coverage. This is with a view to minimizing energy wastage as well as preventing possible fire outbreaks in homes. The study is based on GSM network and a PIC16F877A microcontroller. Assembly language was used to develop a control program for the PIC. A circuit was constructed which constitutes of the microcontroller (PIC16F877A), LCD Module, SIM card and 4 relays (Darlington transistor). The SIM card was connected to a GM-47 module using a SIM holder. The LCD module was wired to the PIN21-28, PIN15-18, VDD, VSS of the PIC, while the relay module which performs the switching ON and OFF of the home appliances was connected to the RD0 and RD1 of the PIC. The GM-47 GSM module which holds the SIM card was connected to the RA3 and RA2 of the PIC through an operational amplifier such that when the user calls the SIM card, the microcontroller receives the signal and the control program changes the state of the relay. The control program was developed such that different call duration (3 seconds, 6 seconds and 9 seconds) changes the state of the three different relay hence, switches ON and OFF one and all the three power outlets. The project was tested by connecting the developed device to different loads (Fan, Electrical bulb and laptop etc.).
 
Index Terms - Home Appliance Control, GSM Network, PIC16F877A, Energy Wastage

Citation - N Umelo, A Adekiigbe. "A Lightweight Wireless Home Appliances Control." International Journal of Computer Engineering and Information Technology 4, no. 1 (2015): 76-81.

 

Optimal FIR filters Analysis using Matlab

Pages: 82-86 (5) | [Full Text] PDF (819 KB)
M Iqbal
Electrical Engineering Department ,Sarhad University of Science & IT Peshawar Pakistan

Abstract -
In this paper optimal FIR filter techniques are used to design any type of FIR filter. This techniques design the smallest-order FIR filter for a given set of specification. It is based on the concept that the filter exhibits ripples of equal length in the band-pass and band-stop. The design algorithm of these Equiripple FIR filter uses iterative polynomial interpolation. Input signal has a great influence on the performance of the system in digital control system. Processing of input signal is important to get useful signal. In the processing of digital signal Finite impulse response (FIR) filter plays an important role. Using Matlab the FIR filter is designed and simulated. Different methods like frequency sampling, window function and convex optimization technique are processed using Matlab in the design of FIR filter. By comparing the signal’s amplitude-frequency diagrams which have been generated the filtering effect of different digital filters are analyzed by using FIR digital filters which are designed to process the input signal based on the Matlab function. This paper shows the experimental results show the FIR filters designed.
 
Index Terms - Matlab, Optimal, Remez method, optimization, FIR filter, Equiripple Design

Citation - M Iqbal. "Optimal FIR filters Analysis using Matlab." International Journal of Computer Engineering and Information Technology 4, no. 1 (2015): 82-86.