Accepted Papers

  • ESCAPING THE LOCAL OPTIMA TRAP CAUSED BY PSO BY HYBRIDIZATION SCHEME FOR ELONGATE THE WSN'S LIFETIME

    A. Alshahrani and M. Namazi, The Catholic University of America, United States of America and Majed Abdouli, University of Jeddah, KSA
    ABSTRACT

    Efficient utilization of sensor energy to prolong the WSN' lifetime is proposed in this paper. A hybrid PSO Genetic sleep scheduling algorithm for WSNs to escape the local optima trap is the focus of this work. The proposed scheme uses a new parameter: Local Optimum Detector (LOD) for switching from PSO to GA algorithm in order to escape to the local optima trap caused by PSO.

  • FADING TWO WAY RELAY CHANNEL SCHEME WITH CORRELATED SOURCES BASED ON LDPC CODES

    Youssef Zid1, Sonia Zaibi Ammar2 and Ridha Bouallegue1, 1Higher School of Communications of Tunis, Tunisia and 2National Engineering School of Tunis, Tunisia
    ABSTRACT

    In this paper, a Generalized Joint Channel Network Coding (GJCNC) algorithm is developed for a sensor network with correlated sources. The adopted scheme in our work is the common Two Way Relay Channel (TWRC) scheme which contains two sources and one relay. These sources send informations to each other by using the relay as an intermediate node. By using the Physical Layer Network Coding (PLNC) principle, the relay is responsible of the decoding of the combined informations being sent from sources. We consider in this work a fading TWRC scheme since a Rayleigh channel between sources and relay is used. Indeed, the channel code used is the Low Density Parity Check Code (LDPC). In order to exploit the correlation between sources, the GJCNC algorithm is modified by computing the new relations between information vectors. Simulation results presented by Bit Error Rate (BER) show that by exploiting the correlation between sources, the system performances can be widely improved.

  • 5G CELLULAR : SURVEY ON SOME CHALLENGING TECHNIQUES

    Yosra BENCHAABENE, Sfax University, Tunisia, Noureddine BOUJNAH, IRESCOMATH research unit, Tunisia and Faouzi ZARAI, Sfax University, Tunisia
    ABSTRACT

    The evolving fifth generation (5G) cellular wireless networks are envisioned to provide higher data rates, enhance end-user quality-of-experience (QoE), reduce end-to-end latency,and lower energy consumption. This article presents several emerging technologies which could enable and define future 5G mobile communication standards and cellular networks.This article discusses novel design techniques including dense hetergeounes networks and stochastic geometry as an approach that will be used to design 5G cellular networks and new features are discussed such as the new mm-wave, Massive Multiple Input Multiple Out (Massive MIMO) and new access technique (Filter Bank multi Carrier). FBMC, cloud Radio Acess Network C-RAN and virtualization of wireless resources . Finally,the study presents new 5G applications, namely Machine type communication and IoT.

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