2018 14th International Wireless Communications & Mobile Computing Conference (IWCMC), 2018
Channel capacity and software definition of radio functions are important issues for Vehicular Ad... more Channel capacity and software definition of radio functions are important issues for Vehicular Ad-hoc NETworks (VANETs). In our paper, we propose to integrate a 5G radio access technology to software defined PHY layer of IEEE 802.11p for frequency reuse. We superpose two signals with Non-orthogonal Multiple Access (NOMA), and we extract them through Successive Interference Cancellation (SIC). NOMA and SIC solutions have been designed using Software Defined Radio (SDR) chains offering PHY reconfigurability. We prove that this solution allows us to superpose two users sharing the same subcarrier frequency at the same time. Simulations have been performed with two quadrature modulators sharing the same subcarrier frequency. NOMA/SIC would improve the network throughput, since after cancellation, the obtained Bit Error Rate (BER) has been reduced.
2020 8th International Conference on Wireless Networks and Mobile Communications (WINCOM), 2020
Enabling direct Vehicle-to-Vehicle (V2V) communications within LTE-V technology is considered as ... more Enabling direct Vehicle-to-Vehicle (V2V) communications within LTE-V technology is considered as a key technological breakthrough to further deploy vehicle-to-Everything (V2X) applications. As the main goal of these latter is to improve the traffic safety and save lives, any design of a resource allocation scheme under LTE-V has to take into account the stringent requirements of these applications in terms of reliability and latency. In this context, this paper proposes a novel Priority and guarantEed-bAsed Resource aLlocation approach (PEARL) for cellular V2V communications under a mode 3 configuration. Extensive simulations and comparison to other approaches corroborate the out-performance of our proposal to deliver emergency packets with lower delays and higher packet reception rate without impacting the transmission of non-safety V2X packets.
Das RAN (Radio Access Network) der auf uns zukommenden dritten Generation des mobilen Kommunikati... more Das RAN (Radio Access Network) der auf uns zukommenden dritten Generation des mobilen Kommunikationssystems, des UMTS (Universal Mobile Telecommunication System), ist derzeit Gegenstand intensiver Forschung und Standardisierungsbestrebungen. Der vorliegende Artikel diskutiert im ersten Teil die bei der Realisierung des Uebertragungsnetzes, das unter Verwendung der ATM Adaption 2-Technologie (AAL-2) und von IP erfolgt, zu beruecksichtigenden technischen Qualitaetserfordernisse an die angebotenen Dienste, speziell an deren Bedienbarkeit. Der zweite Teil betrachtet Gestaltungsalternativen fuer die Realisierung des RAN unter den Bedingungen einer Satellitenkomponente. Zur Gesamtaufnahme siehe ITRD-Nummer D346772. (KfV/A) ABSTRACT IN ENGLISH: The radio access network of upcoming third generation mobile communication systems is currently a subject of intense research and standardization efforts. The article discusses in the first part quality of service aspects of the realization of the t...
S OF PAPERS PRESENTED AT THE 5TH INTERNATIONAL CONFERENCE ON INTERNET OF VEHICLES 
 (IOV 2018) ! ... more S OF PAPERS PRESENTED AT THE 5TH INTERNATIONAL CONFERENCE ON INTERNET OF VEHICLES 
 (IOV 2018) ! HTTPS://LIPN.UNIV-PARIS13.FR/~CERIN/SC2IOVSOCA2018.HTML L’UNIVERSITÉ PARIS 13, Laboratoire d'Informatique de Paris Nord
The migration to smart cities will provide citizens with a plethora of services under the umbrell... more The migration to smart cities will provide citizens with a plethora of services under the umbrella of Internet of Things, such as real time health monitoring, smart vehicular, and road control systems. To meet smart cities’ needs, technological development in the fields of Smart Grid, Big Data processing and Broadband Communication, has started. In particular, the development in the domain of broadband communication must take into account data rate maximization and latency minimization, while keeping eyes on the environmental friendly aspect. One promising concept in this context is the heavy deployment of 4G and beyond networks where energy efficiency is a major focal point. Hence, the focus of this chapter is targeted towards green multicell networks, where dense frequency reutilization is used in smart cities. The ensuing Inter-Cell Interference (ICI) harms radio transmissions and degrades their performances. Thus, a certain degree of ICI Coordination (ICIC) between serving evolv...
14th IEEE Proceedings on Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003.
Provision of various real time multimedia services to mobile users is the main objective of the n... more Provision of various real time multimedia services to mobile users is the main objective of the next generation wireless networks, which will be IP-based and are expected to interwork with the Internet backbone seamlessly. Two major challenges in IP-based wireless mobile networks are support of fast handoff and provision of quality of service (QoS). In order to provide QoS to the mobile users, we propose to study the performance of a distributed call admission control (CAC) in a cellular IP domain. This scheme is compared to a centralized CAC performed by the domain gateway. The proposed CACs are part of a dynamic adaptive architecture DYNAA that copes with users' mobility and that dynamically adapts the calls bandwidth.
Preface. Committees. Referees. Application and Services. Invited Speaker: Video coding and networ... more Preface. Committees. Referees. Application and Services. Invited Speaker: Video coding and network support for multimedia services over ATM networks (D. Beaumont). Provision of the broadband connectionless data bearer service in N-ISDN (M. Wenas, M. Theys). LANs interconnection via ATM: an experimental prototype (P. Camarda, P. Dello Russo, G. De Robertis, V. Minafra, V. Signore). Translation of user's QoS parameters into ATM performance requirements (D. Seret, J.-I. Jung). High time-resolution cell loss measurements of mixed CBR and VBR traffic (N. Bjorkman, A. Latour-Henner). On issues related to real-time applications support in the Orbit Gbps ring (J. Chen, R. Guerin). Protocols and Testing. Traffic control for best effort data communications in ATM networks: simulation comparison of alternative schemes (G. Bagnoli, M. Listanti, R. Winkler). A new selective repeat ARQ scheme for multicast communication (M. Aghadavoodi Jolfae, U. Quernheim). Performance evaluation of frame relay based on the packet trains model (M. Gagnaire, T. Uso). TRIBUNE: on the leading edge of broadband testing (J. Scarr, G. Bosveld, A. Doelman, J. de Bie). Implementation of an ATM network emulator (A. Alonso Hernan, L.A. Merayo Fernandez, L. Mola Morales, H. Salas Asencios). Switching. A growable folded ATM switching architecture (A. Jajszczyk). Performance analysis of an ATM switch based on a three-stage Clos interconnection network under non-uniform traffic patterns (A.-L. Beylot, I. Kohlenberg, M. Becker). Performance evaluation of the ATM ring-based switching architecture (T. Meuser, J. Wolsky). Traffic. Invited Speaker: Performance modelling and traffic engineering for broadband communication networks (P. Kuhn). A comparison of models for VBR video traffic sources in B-ISDN (O. Rose, M. Frater). Indices of dispersion and ATM traffic characterization (F. Guillemin, A. Dupuis). Analysis of usage parameter control algorithms for ATM networks (H. Clausen, P. Ryberg Jensen). Dimensioning a traffic control device in an ATM network (C. Rosenberg, G. Hebuterne). Resource Management and Network Control. An evaluation of burst-level bandwidth reservation methods in WAN environments (M. Yoshida, C. Ikeda, H. Suzuki). Bandwidth allocation by pricing in ATM networks (J. Murphy, L. Murphy). A congestion control framework for broadband ISDN using selective window control (K.-Q. Liao, L. Mason). The control of network resources for complex B-ISDN services (A. Paglialunga, L. Ronchetti, L. Faglia, S. Minzer). The management of a pan-european ATM network - the X interface (T. Barker, A. Macht. J. Johansen, I. Rodriguez, J. Rodrigues, J.V. Ruymbeke).
2015 11th International Conference on Innovations in Information Technology (IIT), 2015
The focus of this paper is targeted towards multicell networks, when dense frequency reutilizatio... more The focus of this paper is targeted towards multicell networks, when dense frequency reutilization is used in a given operating area by evolved Nodes B (eNodeB). The ensuing Inter-Cell Interference (ICI) harms the radio transmissions and degrades the performances. Thus, a certain degree of ICI coordination (ICIC) between the eNodeBs is required to manage the resources and minimize the interference level. This paper addresses the problem of ICIC in the downlink of LTE OFDMA-based systems, where the power level selection of resource blocks (RBs) is portrayed as a sub-modular game in the context of self-organizing networks. The existence of Nash equilibriums (NEs) for that type of games shows that stable power allocations can be reached by selfish eNodeBs. To attain these NEs, we propose a decentralized algorithm based on Best Response dynamics to achieve those equilibriums. In order to evaluate our proposal, we compare the obtained results to an optimal global CoMP (Coordinated Multi-Point) solution where a central controller is the decision maker [2]. Numerical simulations assessed the good power efficiency of the proposed distributed approach in comparison with the centralized approach for CoMP.
The 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications
The focus of this paper is the performance of ATM/AAL2 as a transport technology for Universal Te... more The focus of this paper is the performance of ATM/AAL2 as a transport technology for Universal Terrestrial Radio Access Network (UTRAN) in UMTS/IMT-2000 setting. In this work, we propose an analytical model for the transparent multiplexing and transport through UTRAN of several voice channels onto a single AAL2/ATM VC. We investigate the queue building up at the AAL2 multiplexer in
Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE
The focus of this paper is the performance of the AAL2/ATM transport technology for the Universal... more The focus of this paper is the performance of the AAL2/ATM transport technology for the Universal Terrestrial Radio Access Network (UTRAN) in UMTS/IMT2000. We particularly consider the case of voice and data streams, with a service differentiation between them conducted at the AAL2 level by the use of the weighted round robin (WRR) scheme. We obtain closed-form expressions for bounds
2018 14th International Wireless Communications & Mobile Computing Conference (IWCMC), 2018
Channel capacity and software definition of radio functions are important issues for Vehicular Ad... more Channel capacity and software definition of radio functions are important issues for Vehicular Ad-hoc NETworks (VANETs). In our paper, we propose to integrate a 5G radio access technology to software defined PHY layer of IEEE 802.11p for frequency reuse. We superpose two signals with Non-orthogonal Multiple Access (NOMA), and we extract them through Successive Interference Cancellation (SIC). NOMA and SIC solutions have been designed using Software Defined Radio (SDR) chains offering PHY reconfigurability. We prove that this solution allows us to superpose two users sharing the same subcarrier frequency at the same time. Simulations have been performed with two quadrature modulators sharing the same subcarrier frequency. NOMA/SIC would improve the network throughput, since after cancellation, the obtained Bit Error Rate (BER) has been reduced.
2020 8th International Conference on Wireless Networks and Mobile Communications (WINCOM), 2020
Enabling direct Vehicle-to-Vehicle (V2V) communications within LTE-V technology is considered as ... more Enabling direct Vehicle-to-Vehicle (V2V) communications within LTE-V technology is considered as a key technological breakthrough to further deploy vehicle-to-Everything (V2X) applications. As the main goal of these latter is to improve the traffic safety and save lives, any design of a resource allocation scheme under LTE-V has to take into account the stringent requirements of these applications in terms of reliability and latency. In this context, this paper proposes a novel Priority and guarantEed-bAsed Resource aLlocation approach (PEARL) for cellular V2V communications under a mode 3 configuration. Extensive simulations and comparison to other approaches corroborate the out-performance of our proposal to deliver emergency packets with lower delays and higher packet reception rate without impacting the transmission of non-safety V2X packets.
Das RAN (Radio Access Network) der auf uns zukommenden dritten Generation des mobilen Kommunikati... more Das RAN (Radio Access Network) der auf uns zukommenden dritten Generation des mobilen Kommunikationssystems, des UMTS (Universal Mobile Telecommunication System), ist derzeit Gegenstand intensiver Forschung und Standardisierungsbestrebungen. Der vorliegende Artikel diskutiert im ersten Teil die bei der Realisierung des Uebertragungsnetzes, das unter Verwendung der ATM Adaption 2-Technologie (AAL-2) und von IP erfolgt, zu beruecksichtigenden technischen Qualitaetserfordernisse an die angebotenen Dienste, speziell an deren Bedienbarkeit. Der zweite Teil betrachtet Gestaltungsalternativen fuer die Realisierung des RAN unter den Bedingungen einer Satellitenkomponente. Zur Gesamtaufnahme siehe ITRD-Nummer D346772. (KfV/A) ABSTRACT IN ENGLISH: The radio access network of upcoming third generation mobile communication systems is currently a subject of intense research and standardization efforts. The article discusses in the first part quality of service aspects of the realization of the t...
S OF PAPERS PRESENTED AT THE 5TH INTERNATIONAL CONFERENCE ON INTERNET OF VEHICLES 
 (IOV 2018) ! ... more S OF PAPERS PRESENTED AT THE 5TH INTERNATIONAL CONFERENCE ON INTERNET OF VEHICLES 
 (IOV 2018) ! HTTPS://LIPN.UNIV-PARIS13.FR/~CERIN/SC2IOVSOCA2018.HTML L’UNIVERSITÉ PARIS 13, Laboratoire d'Informatique de Paris Nord
The migration to smart cities will provide citizens with a plethora of services under the umbrell... more The migration to smart cities will provide citizens with a plethora of services under the umbrella of Internet of Things, such as real time health monitoring, smart vehicular, and road control systems. To meet smart cities’ needs, technological development in the fields of Smart Grid, Big Data processing and Broadband Communication, has started. In particular, the development in the domain of broadband communication must take into account data rate maximization and latency minimization, while keeping eyes on the environmental friendly aspect. One promising concept in this context is the heavy deployment of 4G and beyond networks where energy efficiency is a major focal point. Hence, the focus of this chapter is targeted towards green multicell networks, where dense frequency reutilization is used in smart cities. The ensuing Inter-Cell Interference (ICI) harms radio transmissions and degrades their performances. Thus, a certain degree of ICI Coordination (ICIC) between serving evolv...
14th IEEE Proceedings on Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003.
Provision of various real time multimedia services to mobile users is the main objective of the n... more Provision of various real time multimedia services to mobile users is the main objective of the next generation wireless networks, which will be IP-based and are expected to interwork with the Internet backbone seamlessly. Two major challenges in IP-based wireless mobile networks are support of fast handoff and provision of quality of service (QoS). In order to provide QoS to the mobile users, we propose to study the performance of a distributed call admission control (CAC) in a cellular IP domain. This scheme is compared to a centralized CAC performed by the domain gateway. The proposed CACs are part of a dynamic adaptive architecture DYNAA that copes with users' mobility and that dynamically adapts the calls bandwidth.
Preface. Committees. Referees. Application and Services. Invited Speaker: Video coding and networ... more Preface. Committees. Referees. Application and Services. Invited Speaker: Video coding and network support for multimedia services over ATM networks (D. Beaumont). Provision of the broadband connectionless data bearer service in N-ISDN (M. Wenas, M. Theys). LANs interconnection via ATM: an experimental prototype (P. Camarda, P. Dello Russo, G. De Robertis, V. Minafra, V. Signore). Translation of user's QoS parameters into ATM performance requirements (D. Seret, J.-I. Jung). High time-resolution cell loss measurements of mixed CBR and VBR traffic (N. Bjorkman, A. Latour-Henner). On issues related to real-time applications support in the Orbit Gbps ring (J. Chen, R. Guerin). Protocols and Testing. Traffic control for best effort data communications in ATM networks: simulation comparison of alternative schemes (G. Bagnoli, M. Listanti, R. Winkler). A new selective repeat ARQ scheme for multicast communication (M. Aghadavoodi Jolfae, U. Quernheim). Performance evaluation of frame relay based on the packet trains model (M. Gagnaire, T. Uso). TRIBUNE: on the leading edge of broadband testing (J. Scarr, G. Bosveld, A. Doelman, J. de Bie). Implementation of an ATM network emulator (A. Alonso Hernan, L.A. Merayo Fernandez, L. Mola Morales, H. Salas Asencios). Switching. A growable folded ATM switching architecture (A. Jajszczyk). Performance analysis of an ATM switch based on a three-stage Clos interconnection network under non-uniform traffic patterns (A.-L. Beylot, I. Kohlenberg, M. Becker). Performance evaluation of the ATM ring-based switching architecture (T. Meuser, J. Wolsky). Traffic. Invited Speaker: Performance modelling and traffic engineering for broadband communication networks (P. Kuhn). A comparison of models for VBR video traffic sources in B-ISDN (O. Rose, M. Frater). Indices of dispersion and ATM traffic characterization (F. Guillemin, A. Dupuis). Analysis of usage parameter control algorithms for ATM networks (H. Clausen, P. Ryberg Jensen). Dimensioning a traffic control device in an ATM network (C. Rosenberg, G. Hebuterne). Resource Management and Network Control. An evaluation of burst-level bandwidth reservation methods in WAN environments (M. Yoshida, C. Ikeda, H. Suzuki). Bandwidth allocation by pricing in ATM networks (J. Murphy, L. Murphy). A congestion control framework for broadband ISDN using selective window control (K.-Q. Liao, L. Mason). The control of network resources for complex B-ISDN services (A. Paglialunga, L. Ronchetti, L. Faglia, S. Minzer). The management of a pan-european ATM network - the X interface (T. Barker, A. Macht. J. Johansen, I. Rodriguez, J. Rodrigues, J.V. Ruymbeke).
2015 11th International Conference on Innovations in Information Technology (IIT), 2015
The focus of this paper is targeted towards multicell networks, when dense frequency reutilizatio... more The focus of this paper is targeted towards multicell networks, when dense frequency reutilization is used in a given operating area by evolved Nodes B (eNodeB). The ensuing Inter-Cell Interference (ICI) harms the radio transmissions and degrades the performances. Thus, a certain degree of ICI coordination (ICIC) between the eNodeBs is required to manage the resources and minimize the interference level. This paper addresses the problem of ICIC in the downlink of LTE OFDMA-based systems, where the power level selection of resource blocks (RBs) is portrayed as a sub-modular game in the context of self-organizing networks. The existence of Nash equilibriums (NEs) for that type of games shows that stable power allocations can be reached by selfish eNodeBs. To attain these NEs, we propose a decentralized algorithm based on Best Response dynamics to achieve those equilibriums. In order to evaluate our proposal, we compare the obtained results to an optimal global CoMP (Coordinated Multi-Point) solution where a central controller is the decision maker [2]. Numerical simulations assessed the good power efficiency of the proposed distributed approach in comparison with the centralized approach for CoMP.
The 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications
The focus of this paper is the performance of ATM/AAL2 as a transport technology for Universal Te... more The focus of this paper is the performance of ATM/AAL2 as a transport technology for Universal Terrestrial Radio Access Network (UTRAN) in UMTS/IMT-2000 setting. In this work, we propose an analytical model for the transparent multiplexing and transport through UTRAN of several voice channels onto a single AAL2/ATM VC. We investigate the queue building up at the AAL2 multiplexer in
Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE
The focus of this paper is the performance of the AAL2/ATM transport technology for the Universal... more The focus of this paper is the performance of the AAL2/ATM transport technology for the Universal Terrestrial Radio Access Network (UTRAN) in UMTS/IMT2000. We particularly consider the case of voice and data streams, with a service differentiation between them conducted at the AAL2 level by the use of the weighted round robin (WRR) scheme. We obtain closed-form expressions for bounds
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Papers by Samir Tohme