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Cooperative localization techniques for wireless sensor networks: free, signal and angle based techniques

Abderrahim, Benslimane; Clement, Saad; Jean‐, Claude Konig; Mohammed, Boulmalf (Wireless Communications and Mobile Computing, 2014-12-10)

This paper addresses the problem of localization in sensor networks where, initially, a certain number of sensors are aware of their positions (either by using GPS or by being hand-placed) and are referred to as anchors. ...

A hybrid routing protocol for vanet using ontology

Hamza, Toulni; Benayad, Nsiri (Procedia Computer Science, 2015-01-01)

Vehicular Ad-hoc NETwork (VANET) is a wireless communication technology applied to transportation, its main objective is to improve road safety, logistics and information services. However, the efficiency and performance ...

Underwater image processing method for fish localization and detection in submarine environment

Mohcine, Boudhane; Benayad, Nsiri (Journal of Visual Communication and Image Representation, 2016-08-01)

Object detection is an important process in image processing, it aims to detect instances of semantic objects of a certain class in digital images and videos. Object detection has applications in many areas of computer ...

Teaching digital and analog modulation to undergradute information technology students using matlab and simulink

M, Boulmalf; Y, Semmar; A, Lakas; K, Shuaib (IEEE EDUCON 2010 Conference, 2010-04-14)

Teaching mathematical intensive engineering based courses to undergraduate Information Technology students poses a great challenge to instructors. In this paper we provide an efficient and effective method for teaching ...

Growth and oscillation of solutions to linear differential equations with entire coefficients having the same order.

Belaidi, Benharrat (Electronic Journal of Differential Equations (EJDE)[electronic only], 2009)

Line 1 i open parenthesis f closing parenthesis= open brace sub plus infinity comma to the power of minimum to the power of 0 comma open brace j in N: rho sub j open parenthesis f closing parenthesis less plus infinity ...

Teaching digital and analog modulation to undergradute information technology students using matlab and simulink

M, Boulmalf; Y, Semmar; A, Lakas; K, Shuaib (IEEE EDUCON 2010 Conference, 2010-04-14)

Teaching mathematical intensive engineering based courses to undergraduate Information Technology students poses a great challenge to instructors. In this paper we provide an efficient and effective method for teaching ...

Differential polynomials generated by some complex linear differential equations with meromorphic coefficients

Belaidi, Benharrat; El Farissi, Abdallah (Glasnik matematički, 2008-11-10)

In this paper, we investigate the relationship between small functions and differential polynomials g (z) = d2f′′ + d1f′ + d0f, where d0 (z) , d1 (z) , d2 (z) are meromorphic functions which are not all equal to zero ...

Order and hyper-order of entire solutions of linear differential equations with entire coefficients.

Belaıdi, Benharrat; Hamani, Karima (Electronic Journal of Differential Equations (EJDE)[electronic only], 2003)

Line 1 overbar dens sub E= limint r right arrow plus infinity supremum m open parenthesis E cap open square bracket 0 comma r closing square bracket closing parenthesis divided by r sub comma dens underbar to the power of ...

Oscillation of fixed points of solutions of some linear differential equations.

Belaıdi, B (Acta Mathematica Universitatis Comenianae, 2008-10-01)

In this paper, we investigate the relationship between solutions and their derivatives of the differential equation f(k) + A(z)f = 0, k 2, where A(z) is a transcendental meromorphic function with p(A) = > 0 and ...

A hybrid cooperative service discovery scheme for mobile services in VANET

Abderrahmane, Lakas; Mohamed, Adel Serhani; Mohammed, Boulmalf (2011 IEEE 7th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), 2011-10-10)

Discovering and accessing services while on the road is an important component in the architecture of future vehicular ad hoc networks, and for a successful deployment of services. Several studies have focused on the ...

Methodology for modeling the impact of traffic burstiness on high-speed networks

Tibor, Gyires (IEEE SMC'99 Conference Proceedings. 1999 IEEE International Conference on Systems, Man, and Cybernetics (Cat. No. 99CH37028), 1999)

Recent results published in [1,3,4,7] prove that high-speed network traffic is more bursty and its variability cannot be predicted as assumed previously. According to the authors, network traffic has similar statistical ...

A lightweight middleware for an e-health WSN based system using Android technology

Mohammed, Boulmalf; Ahmed, Belgana; Tayeb, Sadiki; Sara, Hussein; Tarik, Aouam; Hamid, Harroud (2012 International Conference on Multimedia Computing and Systems, 2012-05-10)

With the rapid development of Wireless Sensors Network (WSN) technology, together with its growing market due to the variety of applications in which this technology can be used, sensors are now available at very cheap ...

Impact of encryption on the throughput of infrastructure WLAN IEEE 802.11 g

Ezedin, Barka; Mohammed, Boulmalf (2007 IEEE Wireless Communications and Networking Conference, 2007-03-11)

This paper investigates the impact of security on the performance of WLAN. More specifically, it analyzes the impact of applying encryption used by the wellknown security protocol Wired Equivalent Privacy (WEP) on the ...

Estimation of the hyper-order of entire solutions of complex linear ordinary differential equations whose coefficients are entire functions

Belaidi, Benharrat (Electron. J. Qual. Theory Differ. Equ., 2002)

We investigate the growth of solutions of the differential equation f (n)+ An− 1 (z) f (n− 1)+...+ A1 (z) f+ A0 (z) f= 0, where A0 (z),..., An− 1 (z) are entire functions with A0 (z)≡ 0. We estimate the hyper-order with ...

Does the internet still demonstrate fractal nature?

György, Terdik; Tibor, Gyires (2009 Eighth International Conference on Networks, 2009-03-01)

The self-similar nature of bursty Internet traffic has been investigated for the last decade. A first generation of papers, approximately from 1994 to 2004, argued that the traditionally used Poisson models oversimplified ...

Experimental analysis of video performance over wireless local area networks

Y, Ennaji; M, Boulmalf; C, Alaoui (2009 International Conference on Multimedia Computing and Systems, 2009-04-02)

This paper quantifies the performance degradation of video streaming over WLAN network (IEEE 802.11g) due to distance, obstacles and motion. Wireless networks are generally marked by the presence of noise and channel ...

Traffic analysis for GSM networks

Mohammed, Boulmalf; Jawad, Abrache; Tarik, Aouam; Hamid, Harroud (2009 IEEE/ACS International Conference on Computer Systems and Applications, 2009-05-10)

When GSM was introduced in the early 90's, it was considered an over specified system. Nowadays, it is obvious that the whole range of services is widely in use. In addition, performance is degrading due to the rapidly ...

FlexRFID: A flexible middleware for RFID applications development

ME, Ajana; H, Harroud; M, Boulmalf; H, Hamam (2009 IFIP International Conference on Wireless and Optical Communications Networks, 2009-04-28)

Nowadays, Radio Frequency Identification (RFID) is a popular automatic wireless identification technology, and provides promising benefits in a number of application areas such as supply chain management. Though RFID ...

A policy based event management middleware for implementing rfid applications

Mehdia, E Ajana; Mohammed, Boulmalf; Hamid, Harroud; Habib, Hamam (2009 IEEE International Conference on Wireless and Mobile Computing, Networking and Communications, 2009-10-12)

Radio Frequency Identification (RFID) has become a popular identification technology in a number of application areas such as supply chain management. A dedicated middleware solution is required to achieve the maximum ...

Growth and oscillation theory of solutions of some linear differential equations

Belaıdi, Benharrat (Mat. Vesnik, 2008)

The basic idea of this paper is to consider fixed points of solutions of the differential equation f(k) + A(z) f = 0, k ¸ 2, where A(z) is a transcendental meromorphic function with ½ (A) = ½ > 0. Instead of looking at ...

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