@conference {ElFachtali2017824, title = {Power-optimized vertical handover scheme for 4th generation heterogeneous wireless network}, booktitle = {Colloquium in Information Science and Technology, CIST}, year = {2017}, note = {cited By 0}, pages = {824-829}, abstract = {Minimizing the total power consumption required for vertical handovers in 4th generation heterogeneous wireless networks is as important as providing users with the best QoS(Quality of Service) continuously. This letter proposes a vertical handover scheme to minimize the total power consumption required for a vertical handover in 4th generation heterogeneous wireless networks, while guaranteeing a particular QoS. The proposed scheme is based on an updated Tabu-search scheme, which helps to efficiently explore the network in order to find an optimal solution and to provide a service performance that adheres to predefined service level agreements (SLA). Simulation results show that the proposed scheme can lead to lower total power consumption compared to the RSS (Received Signal Strength) based scheme. The proposed method can achieve promising results in terms of bandwidth, security and cost of service, while minimizing the power consumption. {\textcopyright} 2016 IEEE.}, doi = {10.1109/CIST.2016.7805001}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85010224341\&doi=10.1109\%2fCIST.2016.7805001\&partnerID=40\&md5=34fca482e3ee5b9533ec0539843e2bb7}, author = {El Fachtali, I.a and Saadane, R.b and El Koutbi, M.a and Chaibi, H.a} } @article {ElFachtali2016, title = {Vertical handover decision algorithm using ants{\textquoteright} colonies for 4G heterogeneous wireless networks}, journal = {Journal of Computer Networks and Communications}, volume = {2016}, year = {2016}, note = {cited By 1}, abstract = {With the development of 4G mobile telecommunication systems, providing users with the convenience of a seamless continuous connection is not enough anymore. Users want to be connected through the best available network with the best quality of service. It is necessary to have a good decision-making algorithm which decides whether it is necessary to perform handoff to another network, the best network to vertically perform handoff to, and the right time to initiate the handover. This paper proposes a new approach in which mobile terminals (MTs) continuously analyze the network and keep a database of the best available networks. The concept is based on QoS aware ant colony built on the vertical handoff mechanism that uses an updated version of ants{\textquoteright} colony optimization decision algorithm (A C O R), the dynamic and static factors such as RSS, the cost of service, bandwidth, the velocity of MT, the power consumption and security, and the module for predicting the traveling distance within an IEEE 802.11 WLAN cell. Simulation results show that we can not only meet the individual needs of users in terms of QoS, but also improve the whole system performance by reducing the number of handover failures and unnecessary handover instances by up to 95\%. {\textcopyright} 2016 Imad El Fachtali et al.}, doi = {10.1155/2016/6259802}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84961880430\&doi=10.1155\%2f2016\%2f6259802\&partnerID=40\&md5=76d5e50d1d0c97071ba232ad71f47e0e}, author = {El Fachtali, I.a and Saadane, R.b and Elkoutbi, M.a} } @conference {Chanyour2015, title = {Cooperation based Instantly Decodable Network Coding for mobile clouds}, booktitle = {International Conference on Wireless Networks and Mobile Communications, WINCOM 2015}, year = {2015}, note = {cited By 0}, abstract = {Cloud computing Concept has been recognized as the next generation computing infrastructure. In addition, the explosive expansion of mobile devices usage around all over the world leads to more requirements in terms of resources, environment, and security. Therefore, mobile cloud computing (MCC) paradigm emerges, and it is considered as the future technology for mobile services and applications. Furthermore, Network Coding (NC) is a novel technique that aims to improve performance and throughput in wireless communication. Our work{\textquoteright}s concern is to build a delay and throughput optimized network coding scheme with mobile cooperation for broadcast based Mobile clouds applications. Hence, after a deep literature study, we proposed a scheme that introduces the use of cooperation with Instantly Decodable Network Coding. In order to evaluate our proposition, we carried out simulation experiments to test it and compare it with relevant existing solutions. Finally, the results are very encouraging and the proposed scheme gives a satisfactory delay compared to the existing solutions. {\textcopyright} 2015 IEEE.}, doi = {10.1109/WINCOM.2015.7381306}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84965036776\&doi=10.1109\%2fWINCOM.2015.7381306\&partnerID=40\&md5=f8996d2af589d3ec43f7036516366eca}, author = {Chanyour, T.a and Saadane, R.b} } @conference {Chanyour201557, title = {Secure sparse network coding for reliable routing in large scale DTMN}, booktitle = {Proceedings - 2015 3rd International Workshop on RFID and Adaptive Wireless Sensor Networks, RAWSN 2015 - In conjunction with the International Conference on NETworked sYStems, NETYS 2015}, year = {2015}, note = {cited By 0}, pages = {57-62}, abstract = {Security issue occupies an important part in all communication system and especially for new generation networks. Among these networks, we find Delay Tolerant Mobile Networks (DTMNs) which are a class of useful but challenging networks. Combining Network Coding (NC) and clustering for routing in such networks gives more efficiency and copes with routing reliability problem among large scale networks. Our work{\textquoteright}s concern is to build a secure network coding scheme in the presence of eavesdroppers in large-scale DTMNs. Therefore, we used a cluster based routing protocol dedicated to DTMN specificities. In addition, we used Sparse Random Linear Network Coding (SRLNC) to feat low computational capabilities requirement in such networks. Furthermore, we addressed the packets retransmission decision problem for SRLNC with a fair trade-off throughput/overhead. The results are very encouraging and the proposed routing scheme has the advantage to be reliable as well as secure for large scale DTMN. {\textcopyright} 2015 IEEE.}, doi = {10.1109/RAWSN.2015.7173280}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84966552832\&doi=10.1109\%2fRAWSN.2015.7173280\&partnerID=40\&md5=3d0cbb4c0c91e93d68d64811357a6f36}, author = {Chanyour, T.a and Saadane, R.b and Belkasmi, M.a} } @conference {Chanyour2014274, title = {Routing based on network coding and clustering in DTMN}, booktitle = {2014 2nd World Conference on Complex Systems, WCCS 2014}, year = {2014}, note = {cited By 0}, pages = {274-279}, abstract = {Network coding is a novel technique that aims to improve routing schemes{\textquoteright} throughput. Besides, clustering is used to cope with the scalability problem among high scale networks. This paper combines the use of both techniques to address routing problem in Delay Tolerant Mobile Networks (DTMN). By the mean of its routing, the cluster based routing protocol we use offers opportunities for principal network coding operation, mainly the coding and decoding operations. Once a routed packet is received by the cluster head, it codes it regarding its destination cluster. The last cluster head performs decoding operation to deliver packets to their destination. {\textcopyright} 2014 IEEE.}, doi = {10.1109/ICoCS.2014.7060962}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84929144319\&doi=10.1109\%2fICoCS.2014.7060962\&partnerID=40\&md5=84d1f44e74172c044f700eb2a47a7999}, author = {Chanyour, T.a and Saadane, R.b and Belkasmi, M.a} }