The Experts below are selected from a list of 19575 Experts worldwide ranked by ideXlab platform

Preben Mogensen - One of the best experts on this subject based on the ideXlab platform.

  • performance analysis of relays in lte for a realistic suburban Deployment Scenario
    Vehicular Technology Conference, 2011
    Co-Authors: Claudio Coletti, Preben Mogensen, Ralf Irmer
    Abstract:

    Relays are likely to play an important role in the Deployment of Beyond 3G networks, such as LTE-Advanced, thanks to the possibility of effectively extending Macro network coverage and fulfilling the expected high data-rate requirements. Up until now, the relay technology potential and its cost-effectiveness have been widely investigated in the literature, considering mainly statistical Deployment Scenarios, like regular networks with uniform traffic distribution. This paper is envisaged to illustrate the performances of different relay technologies (In-Band/Out-band) in a realistic suburban network Scenario with real Macro site positions, user density map and spectrum band availability. Based on a proposed heuristic Deployment algorithm, results show that deploying In-band relays can significantly reduce the user outage if high backhaul link quality is ensured, whereas Out-band relaying and the usage of a lower frequency carrier at the Macro layer guarantee better network coverage and capacity improvements.

  • VTC Spring - Performance Analysis of Relays in LTE for a Realistic Suburban Deployment Scenario
    2011 IEEE 73rd Vehicular Technology Conference (VTC Spring), 2011
    Co-Authors: Claudio Coletti, Preben Mogensen, Ralf Irmer
    Abstract:

    Relays are likely to play an important role in the Deployment of Beyond 3G networks, such as LTE-Advanced, thanks to the possibility of effectively extending Macro network coverage and fulfilling the expected high data-rate requirements. Up until now, the relay technology potential and its cost-effectiveness have been widely investigated in the literature, considering mainly statistical Deployment Scenarios, like regular networks with uniform traffic distribution. This paper is envisaged to illustrate the performances of different relay technologies (In-Band/Out-band) in a realistic suburban network Scenario with real Macro site positions, user density map and spectrum band availability. Based on a proposed heuristic Deployment algorithm, results show that deploying In-band relays can significantly reduce the user outage if high backhaul link quality is ensured, whereas Out-band relaying and the usage of a lower frequency carrier at the Macro layer guarantee better network coverage and capacity improvements.

  • light cognitive radio enabled flexible spectrum usage in local area Deployment
    Vehicular Technology Conference, 2009
    Co-Authors: Sanjay Kumar, Valentina Palma, Erwann Borgat, Nicola Marchetti, Preben Mogensen
    Abstract:

    In this paper we propose a mechanism to enable flexible spectrum usage (FSU) in local area indoor Deployment Scenario with several operators in the given geographical area. The proposed scheme is referred to as policy assisted light cognitive radio (CR) enabled FSU, because it follows the CR cycle and considers policy as an important element to assist FSU. It facilitates allocation of spectral resources from a common pool in flexible manner and ensures coexistence of several operators in the given geographical area on the shared spectrum. It also provides an autonomous, self adjustable and scalable solution for the emerging large scale Local Area (LA) indoor Deployment of Home eNode-Bs (HeNBs).

  • VTC Spring - Light Cognitive Radio Enabled Flexible Spectrum Usage in Local Area Deployment
    VTC Spring 2009 - IEEE 69th Vehicular Technology Conference, 2009
    Co-Authors: Sanjay Kumar, Valentina Palma, Erwann Borgat, Nicola Marchetti, Preben Mogensen
    Abstract:

    In this paper we propose a mechanism to enable flexible spectrum usage (FSU) in local area indoor Deployment Scenario with several operators in the given geographical area. The proposed scheme is referred to as policy assisted light cognitive radio (CR) enabled FSU, because it follows the CR cycle and considers policy as an important element to assist FSU. It facilitates allocation of spectral resources from a common pool in flexible manner and ensures coexistence of several operators in the given geographical area on the shared spectrum. It also provides an autonomous, self adjustable and scalable solution for the emerging large scale Local Area (LA) indoor Deployment of Home eNode-Bs (HeNBs).

  • Spectrum Load Balancing for Flexible Spectrum Usage in Local Area Deployment Scenario
    2008 3rd IEEE Symposium on New Frontiers in Dynamic Spectrum Access Networks, 2008
    Co-Authors: Sanjay Kumar, Nicola Marchetti, Yuanye Wang, Istvan Z. Kovacs, Klaus I. Pedersen, Preben Mogensen
    Abstract:

    In this paper we propose a non-contention based mechanism for allocation of the spectral resources by several interfering Home e-NodeBs (HeNBs) deployed by the same or different operators, potentially in random manner in a given geographical area. The proposed mechanism facilitates allocation of spectral resources from a common pool based on the individual traffic requirements of the HeNBs, thereby enabling Flexible Spectrum Usage (FSU). It ensures coexistence of several HeNBs in the given geographical area by partially or completely preventing mutual interference on the shared spectrum. A significant gain in both mean cell throughput and cell edge user outage throughput performance is realized over frequency reuse 1 and 1/4 configurations for a wide range of average offered traffic loads.

Amitava Ghosh - One of the best experts on this subject based on the ideXlab platform.

  • dynamic cell muting for ultra dense indoor small cell Deployment Scenario
    International Conference on Communications, 2015
    Co-Authors: Xiaoyi Wang, Eugene Visotsky, Amitava Ghosh
    Abstract:

    Ultra dense indoor Deployment is widely recognized as one of the predominant network configurations of the future wireless systems. Dense indoor Deployments are characterized by severe interference between co-channel access points deployed usually in close proximity of one another. Thus the effectiveness and efficiency of interference management techniques is the key to the success of ultra dense indoor Deployments. In this study, a representative indoor layout, “Nokia office” is used as an example of an ultra dense indoor Deployment Scenario for investigating the proper indoor interference management schemes. In this paper, an enhanced Dynamic Coordinated Muting (DCM) scheme is proposed using LTE Rel-11 CoMP framework for ultra dense indoor Deployments. Based on interference profile analysis, DCM performance is characterized with varying degrees of feedback overhead and with different types of traffic distributions (symmetric and asymmetric). It is shown that the dynamic coordinated muting scheme can achieve cell edge gains in the range of 55%–96% and mean user throughput gains in the range of 17–28%. The simulation results demonstrate that in certain radio conditions it is also beneficial to consider muting multiple interference sources in the coordinated scheduling algorithm.

  • dynamic cell muting for ultra dense indoor small cell Deployment Scenario
    International Conference on Communications, 2015
    Co-Authors: Xiaoyi Wang, Eugene Visotsky, Amitava Ghosh
    Abstract:

    Ultra dense indoor Deployment is widely recognized as one of the predominant network configurations of the future wireless systems. Dense indoor Deployments are characterized by severe interference between co-channel access points deployed usually in close proximity of one another. Thus the effectiveness and efficiency of interference management techniques is the key to the success of ultra dense indoor Deployments. In this study, a representative indoor layout, “Nokia office” is used as an example of an ultra dense indoor Deployment Scenario for investigating the proper indoor interference management schemes. In this paper, an enhanced Dynamic Coordinated Muting (DCM) scheme is proposed using LTE Rel-11 CoMP framework for ultra dense indoor Deployments. Based on interference profile analysis, DCM performance is characterized with varying degrees of feedback overhead and with different types of traffic distributions (symmetric and asymmetric). It is shown that the dynamic coordinated muting scheme can achieve cell edge gains in the range of 55%–96% and mean user throughput gains in the range of 17–28%. The simulation results demonstrate that in certain radio conditions it is also beneficial to consider muting multiple interference sources in the coordinated scheduling algorithm.

  • ICC Workshops - Dynamic cell muting for ultra dense indoor small cell Deployment Scenario
    2015 IEEE International Conference on Communication Workshop (ICCW), 2015
    Co-Authors: Xiaoyi Wang, Eugene Visotsky, Amitava Ghosh
    Abstract:

    Ultra dense indoor Deployment is widely recognized as one of the predominant network configurations of the future wireless systems. Dense indoor Deployments are characterized by severe interference between co-channel access points deployed usually in close proximity of one another. Thus the effectiveness and efficiency of interference management techniques is the key to the success of ultra dense indoor Deployments. In this study, a representative indoor layout, “Nokia office” is used as an example of an ultra dense indoor Deployment Scenario for investigating the proper indoor interference management schemes. In this paper, an enhanced Dynamic Coordinated Muting (DCM) scheme is proposed using LTE Rel-11 CoMP framework for ultra dense indoor Deployments. Based on interference profile analysis, DCM performance is characterized with varying degrees of feedback overhead and with different types of traffic distributions (symmetric and asymmetric). It is shown that the dynamic coordinated muting scheme can achieve cell edge gains in the range of 55%–96% and mean user throughput gains in the range of 17–28%. The simulation results demonstrate that in certain radio conditions it is also beneficial to consider muting multiple interference sources in the coordinated scheduling algorithm.

  • Performance of low-cost LTE devices for advanced metering infrastructure
    IEEE Vehicular Technology Conference, 2013
    Co-Authors: Rapeepat Ratasuk, Sassan Iraji, Lilei Wang, Klaus Hugl, Amitava Ghosh
    Abstract:

    Machine type communications (MTC) is defined as data communication among devices without the need for human interaction. With the decommissioning of legacy cellular systems, migration of MTC devices to LTE is under investigation by many operators. It is desirable that the cost of LTE MTC devices is similar to that of existing GSM devices. Several cost reduction techniques have been studied. This paper summarizes cost reduction techniques for MTC devices and examines system impacts from such devices being introduced in LTE. Performance is evaluated for the Advanced Metering Infrastructure used in smart grid. It is seen that LTE offers significant capacity for smart metering even with low-cost devices. For a system with 10 MHz bandwidth, approximately 2% of the system resource is required to support AMI in an urban Deployment Scenario.

Ralf Irmer - One of the best experts on this subject based on the ideXlab platform.

  • performance analysis of relays in lte for a realistic suburban Deployment Scenario
    Vehicular Technology Conference, 2011
    Co-Authors: Claudio Coletti, Preben Mogensen, Ralf Irmer
    Abstract:

    Relays are likely to play an important role in the Deployment of Beyond 3G networks, such as LTE-Advanced, thanks to the possibility of effectively extending Macro network coverage and fulfilling the expected high data-rate requirements. Up until now, the relay technology potential and its cost-effectiveness have been widely investigated in the literature, considering mainly statistical Deployment Scenarios, like regular networks with uniform traffic distribution. This paper is envisaged to illustrate the performances of different relay technologies (In-Band/Out-band) in a realistic suburban network Scenario with real Macro site positions, user density map and spectrum band availability. Based on a proposed heuristic Deployment algorithm, results show that deploying In-band relays can significantly reduce the user outage if high backhaul link quality is ensured, whereas Out-band relaying and the usage of a lower frequency carrier at the Macro layer guarantee better network coverage and capacity improvements.

  • VTC Spring - Performance Analysis of Relays in LTE for a Realistic Suburban Deployment Scenario
    2011 IEEE 73rd Vehicular Technology Conference (VTC Spring), 2011
    Co-Authors: Claudio Coletti, Preben Mogensen, Ralf Irmer
    Abstract:

    Relays are likely to play an important role in the Deployment of Beyond 3G networks, such as LTE-Advanced, thanks to the possibility of effectively extending Macro network coverage and fulfilling the expected high data-rate requirements. Up until now, the relay technology potential and its cost-effectiveness have been widely investigated in the literature, considering mainly statistical Deployment Scenarios, like regular networks with uniform traffic distribution. This paper is envisaged to illustrate the performances of different relay technologies (In-Band/Out-band) in a realistic suburban network Scenario with real Macro site positions, user density map and spectrum band availability. Based on a proposed heuristic Deployment algorithm, results show that deploying In-band relays can significantly reduce the user outage if high backhaul link quality is ensured, whereas Out-band relaying and the usage of a lower frequency carrier at the Macro layer guarantee better network coverage and capacity improvements.

Sanjay Kumar - One of the best experts on this subject based on the ideXlab platform.

  • light cognitive radio enabled flexible spectrum usage in local area Deployment
    Vehicular Technology Conference, 2009
    Co-Authors: Sanjay Kumar, Valentina Palma, Erwann Borgat, Nicola Marchetti, Preben Mogensen
    Abstract:

    In this paper we propose a mechanism to enable flexible spectrum usage (FSU) in local area indoor Deployment Scenario with several operators in the given geographical area. The proposed scheme is referred to as policy assisted light cognitive radio (CR) enabled FSU, because it follows the CR cycle and considers policy as an important element to assist FSU. It facilitates allocation of spectral resources from a common pool in flexible manner and ensures coexistence of several operators in the given geographical area on the shared spectrum. It also provides an autonomous, self adjustable and scalable solution for the emerging large scale Local Area (LA) indoor Deployment of Home eNode-Bs (HeNBs).

  • Light Cognitive Radio enabled inter operator Flexible Spectrum Usage for IMT-Advanced
    2009 First UK-India International Workshop on Cognitive Wireless Systems (UKIWCWS), 2009
    Co-Authors: Sanjay Kumar, Nicola Marchetti, Ramjee Prasad
    Abstract:

    In this paper we propose a mechanism to enable Flexible Spectrum Usage (FSU) in Local Area (LA) indoor Deployment Scenario of International Mobile Telecommunications-Advanced (IMT-A) with several operators in the given geographical area. The proposed scheme is referred to as policy assisted light Cognitive Radio (CR) enabled FSU, because it follows the CR cycle and considers policy as an important element to assist FSU. It facilitates allocation of spectrum from a common pool in flexible manner and ensures coexistence of several operators in the given geographical area on the shared spectrum. It also provides an autonomous, self adjustable and scalable solution for the emerging large scale indoor Deployment of Home eNode-Bs (HeNBs).

  • VTC Spring - Light Cognitive Radio Enabled Flexible Spectrum Usage in Local Area Deployment
    VTC Spring 2009 - IEEE 69th Vehicular Technology Conference, 2009
    Co-Authors: Sanjay Kumar, Valentina Palma, Erwann Borgat, Nicola Marchetti, Preben Mogensen
    Abstract:

    In this paper we propose a mechanism to enable flexible spectrum usage (FSU) in local area indoor Deployment Scenario with several operators in the given geographical area. The proposed scheme is referred to as policy assisted light cognitive radio (CR) enabled FSU, because it follows the CR cycle and considers policy as an important element to assist FSU. It facilitates allocation of spectral resources from a common pool in flexible manner and ensures coexistence of several operators in the given geographical area on the shared spectrum. It also provides an autonomous, self adjustable and scalable solution for the emerging large scale Local Area (LA) indoor Deployment of Home eNode-Bs (HeNBs).

  • Spectrum Load Balancing for Flexible Spectrum Usage in Local Area Deployment Scenario
    2008 3rd IEEE Symposium on New Frontiers in Dynamic Spectrum Access Networks, 2008
    Co-Authors: Sanjay Kumar, Nicola Marchetti, Yuanye Wang, Istvan Z. Kovacs, Klaus I. Pedersen, Preben Mogensen
    Abstract:

    In this paper we propose a non-contention based mechanism for allocation of the spectral resources by several interfering Home e-NodeBs (HeNBs) deployed by the same or different operators, potentially in random manner in a given geographical area. The proposed mechanism facilitates allocation of spectral resources from a common pool based on the individual traffic requirements of the HeNBs, thereby enabling Flexible Spectrum Usage (FSU). It ensures coexistence of several HeNBs in the given geographical area by partially or completely preventing mutual interference on the shared spectrum. A significant gain in both mean cell throughput and cell edge user outage throughput performance is realized over frequency reuse 1 and 1/4 configurations for a wide range of average offered traffic loads.

Claudio Coletti - One of the best experts on this subject based on the ideXlab platform.

  • performance analysis of relays in lte for a realistic suburban Deployment Scenario
    Vehicular Technology Conference, 2011
    Co-Authors: Claudio Coletti, Preben Mogensen, Ralf Irmer
    Abstract:

    Relays are likely to play an important role in the Deployment of Beyond 3G networks, such as LTE-Advanced, thanks to the possibility of effectively extending Macro network coverage and fulfilling the expected high data-rate requirements. Up until now, the relay technology potential and its cost-effectiveness have been widely investigated in the literature, considering mainly statistical Deployment Scenarios, like regular networks with uniform traffic distribution. This paper is envisaged to illustrate the performances of different relay technologies (In-Band/Out-band) in a realistic suburban network Scenario with real Macro site positions, user density map and spectrum band availability. Based on a proposed heuristic Deployment algorithm, results show that deploying In-band relays can significantly reduce the user outage if high backhaul link quality is ensured, whereas Out-band relaying and the usage of a lower frequency carrier at the Macro layer guarantee better network coverage and capacity improvements.

  • VTC Spring - Performance Analysis of Relays in LTE for a Realistic Suburban Deployment Scenario
    2011 IEEE 73rd Vehicular Technology Conference (VTC Spring), 2011
    Co-Authors: Claudio Coletti, Preben Mogensen, Ralf Irmer
    Abstract:

    Relays are likely to play an important role in the Deployment of Beyond 3G networks, such as LTE-Advanced, thanks to the possibility of effectively extending Macro network coverage and fulfilling the expected high data-rate requirements. Up until now, the relay technology potential and its cost-effectiveness have been widely investigated in the literature, considering mainly statistical Deployment Scenarios, like regular networks with uniform traffic distribution. This paper is envisaged to illustrate the performances of different relay technologies (In-Band/Out-band) in a realistic suburban network Scenario with real Macro site positions, user density map and spectrum band availability. Based on a proposed heuristic Deployment algorithm, results show that deploying In-band relays can significantly reduce the user outage if high backhaul link quality is ensured, whereas Out-band relaying and the usage of a lower frequency carrier at the Macro layer guarantee better network coverage and capacity improvements.