Browsing by Author "Hasna , Mazen"
Now showing items 21-40 of 145
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Area spectral efficiency of cooperative network with opportunistic relaying
Zhang L.; Hasna , Mazen; Yang H.-C. ( IEEE , 2012 , Conference Paper)In this paper, we investigate the area spectral efficiency (ASE) in a three-node cooperative network with opportunistic relaying. On one hand, in conventional cellular network, ASE is defined to be the average data rate ... -
Area spectral efficiency of underlay cognitive radio transmission over rayleigh fading channels
Zhang L.; Yang H.-C.; Hasna , Mazen ( IEEE , 2013 , Conference Paper)Cognitive radio is a promising technology to improve the spectrum utilization by allowing the unlicensed (secondary) user share a frequency bandwidth with the licensed (primary) owner under the condition that no harmful ... -
Asymptotic BER analysis of FSO with multiple receive apertures over M-distributed turbulence channels with pointing errors
Yang L.; Hasna , Mazen; Gao X. ( Optical Society of American (OSA) , 2014 , Article)In this paper, we consider a free-space optical (FSO) communication with multiple receive apertures over M-distributed turbulence channels with pointing errors. In particular, we consider two different combining schemes ... -
Average ber of multihop communication systems over fading channels
Hasna , Mazen ( IEEE , 2003 , Conference Paper)Multihop transmission is a way to attain broader coverage by splitting the communication link from the source to the destination into several, possibly shorter links/hops. This paper presents an expression for the moment ... -
Average outage duration of multihop communication systems with regenerative relays
Yang L.; Hasna , Mazen; Alouini M.-S. ( IEEE , 2005 , Article)Closed-form expressions for the average outage duration (AOD) of multihop regenerative communication systems over generalized fading channels are presented. Both noise-limited and interference-limited systems are studied. ... -
Capacity analysis of cognitive wireless networks with dynamic spectrum access
Chamkhia H.; Hasna , Mazen ( IEEE Computer Society , 2015 , Conference Paper)Cognitive radio (CR) is a promising technology based on spectrum sharing where the secondary unlicensed users can access the licensed frequency bands in the primary system without any modification to the devices, services ... -
Capacity enhancement in cognitive radio wireless network with dynamic spectrum access
Chamkhia H.; Hasna , Mazen; Bouallegue R. ( IEEE Computer Society , 2014 , Conference Paper)Deployment of femto-cells underlaying the macro-cell has been proven to greatly improve the system capacity and the indoor coverage. However, to successfully deploy this heterogeneous network, the interference among the ... -
Centralized-decentralized RB allocation based on genetic algorithm and coordination over X2 interface in LTE uplink
Essassi S.; Siala M.; Cherif S.; Hamila R.; Hasna , Mazen ( VDE Verlag GmbH , 2015 , Conference Paper)In this paper, we present a method for resource block allocation for the LTE uplink system. It aims to minimize the inter-cell interference and maximize the channel capacity. The genetic algorithm is used to come up with ... -
Channel assignment of microcellular mobile radio networks
Abdel-Naby M.; Nofal M.; Khames S.; El-Khoby H.; Hasna , Mazen ( Institute of Electrical and Electronics Engineers Inc. , 2006 , Conference Paper)This paper addresses the analytical and simulation modeling of non overlapping microcells with both non-prioritized and prioritized handover schemes. The network performance is analyzed in terms of the analytical results ... -
Cognitive relay-sharing by using hierarchical modulation under interference constraints
Khakzad H.; Shakeri R.; Taherpour A.; Khattab T.; Hasna , Mazen ( Institute of Electrical and Electronics Engineers Inc. , 2014 , Conference Paper)In this paper, we investigate relay-sharing in cognitive radio (CR) networks to improve the secondary user's (SU's) performance in the presence of interference. It is assumed that the relay is shared simultaneously between ... -
Cognitive relaying in wireless sensor networks: Performance analysis and optimization
Elsaadany M.; Abdallah M.; Khattab T.; Khairy M.; Hasna , Mazen ( IEEE , 2010 , Conference Paper)The anticipated increase in the density of the deployed wireless sensor networks calls for spectrum sharing through unlicensed access to licensed spectrum. The key technology for spectrum sharing in this scenario is cognitive ... -
Contribution of Shell Eco-Marathon engineering design experience to soft skills development: A qualitative analysis in the Asian context
Abdulwahed M.; Ahmad S.; Hasna , Mazen; Ghani S.; Benammar M. ( Institute of Electrical and Electronics Engineers Inc. , 2014 , Conference Paper)Recent studies emphasize the needs of a wider set of skills engineers require than ever thought. Engineering curricula have been frequently criticized. Engineering design experience is one remedial way of heavy theory ... -
Contributions of competition based complex engineering design experience to leadership development in engineering students
Jibril F.I.; Yasser B.M.; Abdulwahed M.; Hasna , Mazen; Benammar M.A.; Ghani S.A.... more authors ... less authors ( American Society for Engineering Education , 2015 , Conference Paper)Engineering design activities provide students an opportunity to develop a number of skills. Engineering design experiences not only help students to acquire practical or technical skills, but also may enhance a number of ... -
Cooperative communications scheme with interference management under ICI for OFDM LTE-A systems
Omri A.; Hasna , Mazen ( IEEE Computer Society , 2013 , Conference Paper)In long term evolution (LTE) systems, the achievable cell spectral efficiency is often limited by the inter carrier interference (ICI) or coverage shortage of base stations. Hence, in LTE-Advanced, cooperative communication ... -
Cooperative OFDM systems for UWAC with SNR-based relay selection schemes
Karakaya B.; Sökün, Hamza Ümit; Uysal M.; Hasna , Mazen ( IEEE , 2012 , Conference Paper)In this paper, we investigate a multi-carrier multi-relay cooperative system with amplify-and-forward relaying over frequency-selective underwater acoustic channels. Relay selection rules rely on the maximization of ... -
Coverage, Probability of SNR Gain, and DOR Analysis of RiS-Aided Communication Systems
Yang L.; Yang Y.; Hasna , Mazen; Alouini M.-S. ( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)Recent studies have shown that reconfigurable Intelligent surfaces (RiSs) can help In extending the wireless coverage. However, no work has quantitatively analyzed the coverage. In this letter, we present the coverage ... -
Development of a remote lab for electrical engineering program
Khalil A.; Hasna , Mazen; Benammar M.; Chaabane M.; Amar C.B. ( IEEE Computer Society , 2009 , Conference Paper)A remote lab for electrical engineering experiments has been designed and implemented. This has been intended as a platform that supports existing traditional labs by offering lab experiments that serve some of the student ... -
Development of a remote lab for electrical engineering program
Khali A.; Hasna , Mazen; Benammar M.; Chaabane M.; Amar C.B. ( IEEE Computer Society , 2009 , Conference Paper)A remote lab for electrical engineering experiments has been designed and implemented. This has been intended as a platform that supports existing traditional labs by offering lab experiments that serve some of the student ... -
Dynamic optimization of LTE pilot scattering based on channel estimation
Omri A.; Hamila R.; Hasna , Mazen; Bouallegue R. ( IEEE , 2012 , Conference Paper)A dynamic optimization of the pilot scattering for Long Term Evolution (LTE) downlink system is introduced. This optimization is based on channel parameters estimations to optimize the number of pilots used in the transmission ... -
Effective area spectral efficiency for wireless communication networks with interference management
Omri A.; Hasna , Mazen; Nafie M. ( Springer International Publishing , 2015 , Article)In this paper, we introduce a new metric, namely, effective area spectral efficiency (EASE), to quantify the spectral efficiency as well as the spatial properties of point-to-point transmission systems and decode and forward ...