The Experts below are selected from a list of 288 Experts worldwide ranked by ideXlab platform
Vasileios Kokkinos - One of the best experts on this subject based on the ideXlab platform.
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Exploiting MIMO Technology for Optimal MBMS Power Allocation
Wireless Personal Communications, 2011Co-Authors: Angeliki Alexiou, Christos Bouras, Vasileios KokkinosAbstract:In mobile networks, the provision of rich multimedia services, such as Mobile TV, is considered of key importance. To this end, Multimedia Broadcast/Multicast Service (MBMS)—that was introduced in the Release 6 of Universal Mobile Telecommunication System (UMTS)—is envisaged to play an instrumental role in the proliferation of mobile market. The reason behind the design of MBMS was the need to provide multiple users with the same data at the same time in 3GPP (3rd Generation Partnership Project) cellular networks. Still, MBMS performance is limited by the base stations’ transmission power. As an aftermath, efficient power allocation techniques should be implemented so as to ensure the mass provision of multimedia applications to mobile users. This paper proposes a novel mechanism for efficient Radio Bearer selection during MBMS transmissions. The proposed mechanism is based on the concept of transport channels combination in any cell of the network. Furthermore, the mechanism exploits the performance enhancements emerged from Multiple Input Multiple Output (MIMO) antennas and manages to efficiently deliver multiple MBMS sessions. The proposed mechanism is thoroughly evaluated and compared with the Radio Bearer selection mechanisms proposed by 3GPP.
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Efficient Power Allocation in E-MBMS Enabled 4G Networks
Wireless Network Traffic and Quality of Service Support, 2010Co-Authors: Angeliki Alexiou, Christos Bouras, Vasileios KokkinosAbstract:The plethora of mobile multimedia services that are expected to face high penetration, poses the need for the deployment of a resource economic scheme in Long Term Evolution (LTE) networks. To this direction, the Evolved - Multimedia Broadcast / Multicast Service (E-MBMS) is envisaged to play an instrumental role for LTE proliferation and set the basis for a successful 4th Generation (4G) standardization process. One of the most critical aspects of E-MBMS performance is the selection of the most efficient Radio Bearer, in terms of power consumption. This chapter presents the prevailing Radio Bearer selection mechanisms and examines their performance in terms of power consumption. Furthermore, it discusses problems regarding the high power requirements for the realization of E-MBMS and evaluates the proposed techniques/solutions. Finally, this chapter presents a novel mechanism for efficient power control during E-MBMS transmissions that conforms to LTE requirements for simultaneous provision of multiple multimedia sessions.
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MSWiM - An enhanced mechanism for efficient assignment of multiple MBMS sessions towards LTE
Proceedings of the 12th ACM international conference on Modeling analysis and simulation of wireless and mobile systems - MSWiM '09, 2009Co-Authors: Angeliki Alexiou, Christos Bouras, Vasileios KokkinosAbstract:The provision of rich multimedia services, such as Mobile TV, is considered of key importance for the Long Term Evolution (LTE) proliferation in mobile market. To this direction, Evolved - Multimedia Broadcast/Multicast Service (E-MBMS) that targets at the efficient delivery of multimedia data from a single source entity to multiple destinations, is envisaged to play an instrumental role during LTE standardization process. However, both LTE and E-MBMS performance are limited by the base station's transmission power. As an aftermath, efficient power allocation techniques should be implemented so as to ensure the mass provision of multimedia applications to mobile users. This paper proposes a novel mechanism for efficient Radio Bearer selection during E-MBMS transmissions in LTE networks. The proposed mechanism is based on the concept of transport channels combination in any cell of the network. Most significantly, the mechanism exploits the performance enhancements emerged from Multiple Input Multiple Output (MIMO) antennas used in LTE networks and manages to efficiently deliver multiple E-MBMS sessions. The proposed mechanism is thoroughly evaluated and compared with several Radio Bearer selection mechanisms existing in bibliography.
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WMNC/PWC - Efficient Assignment of Multiple E-MBMS Sessions towards LTE
Wireless and Mobile Networking, 2009Co-Authors: Angeliki Alexiou, Christos Bouras, Vasileios KokkinosAbstract:One of the major prerequisites for Long Term Evolution (LTE) networks is the mass provision of multimedia services to mobile users. To this end, Evolved - Multimedia Broadcast/Multicast Service (E-MBMS) is envisaged to play an instrumental role during LTE standardization process and ensure LTE’s proliferation in mobile market. E-MBMS targets at the economic delivery, in terms of power and spectral efficiency, of multimedia data from a single source entity to multiple destinations. This paper proposes a novel mechanism for efficient Radio Bearer selection during E-MBMS transmissions in LTE networks. The proposed mechanism is based on the concept of transport channels combination in any cell of the network. Most significantly, the mechanism manages to efficiently deliver multiple E-MBMS sessions. The performance of the proposed mechanism is evaluated and compared with several Radio Bearer selection mechanisms in order to highlight the enhancements that it provides.
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An enhanced MBMS power control mechanism towards Long Term Evolution
2009 Wireless Telecommunications Symposium, 2009Co-Authors: Angeliki Alexiou, Christos Bouras, Vasileios KokkinosAbstract:Long Term Evolution (LTE) promises the delivery of rich multimedia services in a more power and spectral efficient way than its predecessor Universal Mobile Telecommunication System (UMTS). To this direction, the newly introduced Enhanced - Multimedia Broadcast/Multicast Service (E-MBMS) framework is envisaged to play a fundamental role during the LTE standardization. E-MBMS constitutes the successor of MBMS which was introduced in the Release 6 of UMTS in order to deliver multimedia data from a single source entity to multiple destinations. This paper proposes a novel mechanism for efficient Radio Bearer selection during E-MBMS transmissions in LTE networks. The proposed mechanism is based on the concept of transport channels combination (point-to-point and/or point-to-multipoint Radio Bearers) in any cell/sector of the network in which multicast users are residing. The mechanism is evaluated through several realistic scenarios and is compared with several Radio Bearer selection mechanisms in order to highlight the enhancements that it provides.
Angeliki Alexiou - One of the best experts on this subject based on the ideXlab platform.
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Exploiting MIMO Technology for Optimal MBMS Power Allocation
Wireless Personal Communications, 2011Co-Authors: Angeliki Alexiou, Christos Bouras, Vasileios KokkinosAbstract:In mobile networks, the provision of rich multimedia services, such as Mobile TV, is considered of key importance. To this end, Multimedia Broadcast/Multicast Service (MBMS)—that was introduced in the Release 6 of Universal Mobile Telecommunication System (UMTS)—is envisaged to play an instrumental role in the proliferation of mobile market. The reason behind the design of MBMS was the need to provide multiple users with the same data at the same time in 3GPP (3rd Generation Partnership Project) cellular networks. Still, MBMS performance is limited by the base stations’ transmission power. As an aftermath, efficient power allocation techniques should be implemented so as to ensure the mass provision of multimedia applications to mobile users. This paper proposes a novel mechanism for efficient Radio Bearer selection during MBMS transmissions. The proposed mechanism is based on the concept of transport channels combination in any cell of the network. Furthermore, the mechanism exploits the performance enhancements emerged from Multiple Input Multiple Output (MIMO) antennas and manages to efficiently deliver multiple MBMS sessions. The proposed mechanism is thoroughly evaluated and compared with the Radio Bearer selection mechanisms proposed by 3GPP.
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Efficient Power Allocation in E-MBMS Enabled 4G Networks
Wireless Network Traffic and Quality of Service Support, 2010Co-Authors: Angeliki Alexiou, Christos Bouras, Vasileios KokkinosAbstract:The plethora of mobile multimedia services that are expected to face high penetration, poses the need for the deployment of a resource economic scheme in Long Term Evolution (LTE) networks. To this direction, the Evolved - Multimedia Broadcast / Multicast Service (E-MBMS) is envisaged to play an instrumental role for LTE proliferation and set the basis for a successful 4th Generation (4G) standardization process. One of the most critical aspects of E-MBMS performance is the selection of the most efficient Radio Bearer, in terms of power consumption. This chapter presents the prevailing Radio Bearer selection mechanisms and examines their performance in terms of power consumption. Furthermore, it discusses problems regarding the high power requirements for the realization of E-MBMS and evaluates the proposed techniques/solutions. Finally, this chapter presents a novel mechanism for efficient power control during E-MBMS transmissions that conforms to LTE requirements for simultaneous provision of multiple multimedia sessions.
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MSWiM - An enhanced mechanism for efficient assignment of multiple MBMS sessions towards LTE
Proceedings of the 12th ACM international conference on Modeling analysis and simulation of wireless and mobile systems - MSWiM '09, 2009Co-Authors: Angeliki Alexiou, Christos Bouras, Vasileios KokkinosAbstract:The provision of rich multimedia services, such as Mobile TV, is considered of key importance for the Long Term Evolution (LTE) proliferation in mobile market. To this direction, Evolved - Multimedia Broadcast/Multicast Service (E-MBMS) that targets at the efficient delivery of multimedia data from a single source entity to multiple destinations, is envisaged to play an instrumental role during LTE standardization process. However, both LTE and E-MBMS performance are limited by the base station's transmission power. As an aftermath, efficient power allocation techniques should be implemented so as to ensure the mass provision of multimedia applications to mobile users. This paper proposes a novel mechanism for efficient Radio Bearer selection during E-MBMS transmissions in LTE networks. The proposed mechanism is based on the concept of transport channels combination in any cell of the network. Most significantly, the mechanism exploits the performance enhancements emerged from Multiple Input Multiple Output (MIMO) antennas used in LTE networks and manages to efficiently deliver multiple E-MBMS sessions. The proposed mechanism is thoroughly evaluated and compared with several Radio Bearer selection mechanisms existing in bibliography.
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WMNC/PWC - Efficient Assignment of Multiple E-MBMS Sessions towards LTE
Wireless and Mobile Networking, 2009Co-Authors: Angeliki Alexiou, Christos Bouras, Vasileios KokkinosAbstract:One of the major prerequisites for Long Term Evolution (LTE) networks is the mass provision of multimedia services to mobile users. To this end, Evolved - Multimedia Broadcast/Multicast Service (E-MBMS) is envisaged to play an instrumental role during LTE standardization process and ensure LTE’s proliferation in mobile market. E-MBMS targets at the economic delivery, in terms of power and spectral efficiency, of multimedia data from a single source entity to multiple destinations. This paper proposes a novel mechanism for efficient Radio Bearer selection during E-MBMS transmissions in LTE networks. The proposed mechanism is based on the concept of transport channels combination in any cell of the network. Most significantly, the mechanism manages to efficiently deliver multiple E-MBMS sessions. The performance of the proposed mechanism is evaluated and compared with several Radio Bearer selection mechanisms in order to highlight the enhancements that it provides.
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An enhanced MBMS power control mechanism towards Long Term Evolution
2009 Wireless Telecommunications Symposium, 2009Co-Authors: Angeliki Alexiou, Christos Bouras, Vasileios KokkinosAbstract:Long Term Evolution (LTE) promises the delivery of rich multimedia services in a more power and spectral efficient way than its predecessor Universal Mobile Telecommunication System (UMTS). To this direction, the newly introduced Enhanced - Multimedia Broadcast/Multicast Service (E-MBMS) framework is envisaged to play a fundamental role during the LTE standardization. E-MBMS constitutes the successor of MBMS which was introduced in the Release 6 of UMTS in order to deliver multimedia data from a single source entity to multiple destinations. This paper proposes a novel mechanism for efficient Radio Bearer selection during E-MBMS transmissions in LTE networks. The proposed mechanism is based on the concept of transport channels combination (point-to-point and/or point-to-multipoint Radio Bearers) in any cell/sector of the network in which multicast users are residing. The mechanism is evaluated through several realistic scenarios and is compared with several Radio Bearer selection mechanisms in order to highlight the enhancements that it provides.
Christos Bouras - One of the best experts on this subject based on the ideXlab platform.
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Exploiting MIMO Technology for Optimal MBMS Power Allocation
Wireless Personal Communications, 2011Co-Authors: Angeliki Alexiou, Christos Bouras, Vasileios KokkinosAbstract:In mobile networks, the provision of rich multimedia services, such as Mobile TV, is considered of key importance. To this end, Multimedia Broadcast/Multicast Service (MBMS)—that was introduced in the Release 6 of Universal Mobile Telecommunication System (UMTS)—is envisaged to play an instrumental role in the proliferation of mobile market. The reason behind the design of MBMS was the need to provide multiple users with the same data at the same time in 3GPP (3rd Generation Partnership Project) cellular networks. Still, MBMS performance is limited by the base stations’ transmission power. As an aftermath, efficient power allocation techniques should be implemented so as to ensure the mass provision of multimedia applications to mobile users. This paper proposes a novel mechanism for efficient Radio Bearer selection during MBMS transmissions. The proposed mechanism is based on the concept of transport channels combination in any cell of the network. Furthermore, the mechanism exploits the performance enhancements emerged from Multiple Input Multiple Output (MIMO) antennas and manages to efficiently deliver multiple MBMS sessions. The proposed mechanism is thoroughly evaluated and compared with the Radio Bearer selection mechanisms proposed by 3GPP.
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Efficient Power Allocation in E-MBMS Enabled 4G Networks
Wireless Network Traffic and Quality of Service Support, 2010Co-Authors: Angeliki Alexiou, Christos Bouras, Vasileios KokkinosAbstract:The plethora of mobile multimedia services that are expected to face high penetration, poses the need for the deployment of a resource economic scheme in Long Term Evolution (LTE) networks. To this direction, the Evolved - Multimedia Broadcast / Multicast Service (E-MBMS) is envisaged to play an instrumental role for LTE proliferation and set the basis for a successful 4th Generation (4G) standardization process. One of the most critical aspects of E-MBMS performance is the selection of the most efficient Radio Bearer, in terms of power consumption. This chapter presents the prevailing Radio Bearer selection mechanisms and examines their performance in terms of power consumption. Furthermore, it discusses problems regarding the high power requirements for the realization of E-MBMS and evaluates the proposed techniques/solutions. Finally, this chapter presents a novel mechanism for efficient power control during E-MBMS transmissions that conforms to LTE requirements for simultaneous provision of multiple multimedia sessions.
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MSWiM - An enhanced mechanism for efficient assignment of multiple MBMS sessions towards LTE
Proceedings of the 12th ACM international conference on Modeling analysis and simulation of wireless and mobile systems - MSWiM '09, 2009Co-Authors: Angeliki Alexiou, Christos Bouras, Vasileios KokkinosAbstract:The provision of rich multimedia services, such as Mobile TV, is considered of key importance for the Long Term Evolution (LTE) proliferation in mobile market. To this direction, Evolved - Multimedia Broadcast/Multicast Service (E-MBMS) that targets at the efficient delivery of multimedia data from a single source entity to multiple destinations, is envisaged to play an instrumental role during LTE standardization process. However, both LTE and E-MBMS performance are limited by the base station's transmission power. As an aftermath, efficient power allocation techniques should be implemented so as to ensure the mass provision of multimedia applications to mobile users. This paper proposes a novel mechanism for efficient Radio Bearer selection during E-MBMS transmissions in LTE networks. The proposed mechanism is based on the concept of transport channels combination in any cell of the network. Most significantly, the mechanism exploits the performance enhancements emerged from Multiple Input Multiple Output (MIMO) antennas used in LTE networks and manages to efficiently deliver multiple E-MBMS sessions. The proposed mechanism is thoroughly evaluated and compared with several Radio Bearer selection mechanisms existing in bibliography.
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WMNC/PWC - Efficient Assignment of Multiple E-MBMS Sessions towards LTE
Wireless and Mobile Networking, 2009Co-Authors: Angeliki Alexiou, Christos Bouras, Vasileios KokkinosAbstract:One of the major prerequisites for Long Term Evolution (LTE) networks is the mass provision of multimedia services to mobile users. To this end, Evolved - Multimedia Broadcast/Multicast Service (E-MBMS) is envisaged to play an instrumental role during LTE standardization process and ensure LTE’s proliferation in mobile market. E-MBMS targets at the economic delivery, in terms of power and spectral efficiency, of multimedia data from a single source entity to multiple destinations. This paper proposes a novel mechanism for efficient Radio Bearer selection during E-MBMS transmissions in LTE networks. The proposed mechanism is based on the concept of transport channels combination in any cell of the network. Most significantly, the mechanism manages to efficiently deliver multiple E-MBMS sessions. The performance of the proposed mechanism is evaluated and compared with several Radio Bearer selection mechanisms in order to highlight the enhancements that it provides.
-
An enhanced MBMS power control mechanism towards Long Term Evolution
2009 Wireless Telecommunications Symposium, 2009Co-Authors: Angeliki Alexiou, Christos Bouras, Vasileios KokkinosAbstract:Long Term Evolution (LTE) promises the delivery of rich multimedia services in a more power and spectral efficient way than its predecessor Universal Mobile Telecommunication System (UMTS). To this direction, the newly introduced Enhanced - Multimedia Broadcast/Multicast Service (E-MBMS) framework is envisaged to play a fundamental role during the LTE standardization. E-MBMS constitutes the successor of MBMS which was introduced in the Release 6 of UMTS in order to deliver multimedia data from a single source entity to multiple destinations. This paper proposes a novel mechanism for efficient Radio Bearer selection during E-MBMS transmissions in LTE networks. The proposed mechanism is based on the concept of transport channels combination (point-to-point and/or point-to-multipoint Radio Bearers) in any cell/sector of the network in which multicast users are residing. The mechanism is evaluated through several realistic scenarios and is compared with several Radio Bearer selection mechanisms in order to highlight the enhancements that it provides.
P. E. Mogensen - One of the best experts on this subject based on the ideXlab platform.
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QoS-Aware Single Cell Admission Control for UTRAN LTE Uplink
VTC Spring 2008 - IEEE Vehicular Technology Conference, 2008Co-Authors: M. Anas, C. Rosa, F. D. Calabrese, P. H. Michaelsen, Klaus I. Pedersen, P. E. MogensenAbstract:UTRAN Long Term Evolution (LTE) architecture shall support end-to-end quality of service (QoS). To maintain the QoS of in-progress sessions in a cell it is important to admit a new Radio Bearer only if all the existing sessions and the new Bearer can be guaranteed QoS according to their requirements. Hence admission control (AC) has an important role to play for QoS provisioning. In this paper we propose an AC algorithm for LTE uplink utilizing the fractional power control formula agreed in 3GPP. The proposed AC algorithm is compared with a reference AC algorithm. It is shown that at 10% unsatisfied user probability the carried traffic gain of the proposed AC algorithm can be up to around 29% over the reference AC algorithm. Furthermore, the proposed AC algorithm inherently tunes itself for varying load conditions without additional complexity.
M. Anas - One of the best experts on this subject based on the ideXlab platform.
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QoS-Aware Single Cell Admission Control for UTRAN LTE Uplink
VTC Spring 2008 - IEEE Vehicular Technology Conference, 2008Co-Authors: M. Anas, C. Rosa, F. D. Calabrese, P. H. Michaelsen, Klaus I. Pedersen, P. E. MogensenAbstract:UTRAN Long Term Evolution (LTE) architecture shall support end-to-end quality of service (QoS). To maintain the QoS of in-progress sessions in a cell it is important to admit a new Radio Bearer only if all the existing sessions and the new Bearer can be guaranteed QoS according to their requirements. Hence admission control (AC) has an important role to play for QoS provisioning. In this paper we propose an AC algorithm for LTE uplink utilizing the fractional power control formula agreed in 3GPP. The proposed AC algorithm is compared with a reference AC algorithm. It is shown that at 10% unsatisfied user probability the carried traffic gain of the proposed AC algorithm can be up to around 29% over the reference AC algorithm. Furthermore, the proposed AC algorithm inherently tunes itself for varying load conditions without additional complexity.
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VTC Spring - QoS-Aware Single Cell Admission Control for UTRAN LTE Uplink
VTC Spring 2008 - IEEE Vehicular Technology Conference, 2008Co-Authors: M. Anas, C. Rosa, P. H. Michaelsen, Klaus I. Pedersen, Francesco Calabrese, Preben MogensenAbstract:UTRAN Long Term Evolution (LTE) architecture shall support end-to-end quality of service (QoS). To maintain the QoS of in-progress sessions in a cell it is important to admit a new Radio Bearer only if all the existing sessions and the new Bearer can be guaranteed QoS according to their requirements. Hence admission control (AC) has an important role to play for QoS provisioning. In this paper we propose an AC algorithm for LTE uplink utilizing the fractional power control formula agreed in 3GPP. The proposed AC algorithm is compared with a reference AC algorithm. It is shown that at 10% unsatisfied user probability the carried traffic gain of the proposed AC algorithm can be up to around 29% over the reference AC algorithm. Furthermore, the proposed AC algorithm inherently tunes itself for varying load conditions without additional complexity.
