Access Procedure - Explore the Science & Experts | ideXlab


Scan Science and Technology

Contact Leading Edge Experts & Companies

Access Procedure

The Experts below are selected from a list of 94092 Experts worldwide ranked by ideXlab platform

Access Procedure – Free Register to Access Experts & Abstracts

Marco Centenaro – One of the best experts on this subject based on the ideXlab platform.

  • Comparison of Collision-Free and Contention-Based Radio Access Protocols for the Internet of Things
    IEEE Transactions on Communications, 2017
    Co-Authors: Marco Centenaro, Lorenzo Vangelista, Stephan Saur, Andreas Weber, Volker Braun

    Abstract:

    The fifth-generation (5G) cellular networks will face the challenge of integrating the traditional broadband services with the Internet of Things (IoT), which is characterized by sporadic uplink transmissions of small data packets. Indeed, the Access Procedure of the previous generation cellular network (4G) is not able to support IoT traffic efficiently because it requires a large amount of signaling for the connection setup before the actual data transmission. In this context, we introduce two innovative radio Access protocols for sporadic transmissions of small data packets, which are suitable for 5G networks because they provide a resource-efficient packet delivery exploiting a connection-less approach. The core of this paper resides in the derivation of an analytical framework to evaluate the performance of all the aforementioned protocols. The final goal is the comparison between 4G and 5G radio Access solutions employing both our analytical framework and computer simulations. The performance evaluation results show the benefits of the protocols envisioned for 5G in terms of signaling overhead and Access latency.

    Free Register to Access Article

  • ICC – M2M massive Access in LTE: RACH performance evaluation in a Smart City scenario
    2016 IEEE International Conference on Communications (ICC), 2016
    Co-Authors: Michele Polese, Marco Centenaro, Andrea Zanella, Michele Zorzi

    Abstract:

    Several studies assert that the random Access Procedure of the Long Term Evolution (LTE) cellular standard may not be effective whenever a massive number of simultaneous connection attempts are performed by terminals, as may happen in a typical Internet of Things or Smart City scenario. Nevertheless, simulation studies in real deployment scenarios are missing because many system-level simulators do not implement the LTE random Access Procedure in detail. In this paper, we propose a patch for the LTE module of ns-3, one of the most prominent open-source network simulators, to improve the accuracy of the routine that simulates the LTE Random Access Channel (RACH). The patched version of the random Access Procedure is compared with the default one and the issues arising from massive simultaneous Access from mobile terminals in LTE are assessed via a simulation campaign.

    Free Register to Access Article

  • m2m massive Access in lte rach performance evaluation in a smart city scenario
    International Conference on Communications, 2016
    Co-Authors: Michele Polese, Marco Centenaro, Andrea Zanella, Michele Zorzi

    Abstract:

    Several studies assert that the random Access Procedure of the Long Term Evolution (LTE) cellular standard may not be effective whenever a massive number of simultaneous connection attempts are performed by terminals, as may happen in a typical Internet of Things or Smart City scenario. Nevertheless, simulation studies in real deployment scenarios are missing because many system-level simulators do not implement the LTE random Access Procedure in detail. In this paper, we propose a patch for the LTE module of ns-3, one of the most prominent open-source network simulators, to improve the accuracy of the routine that simulates the LTE Random Access Channel (RACH). The patched version of the random Access Procedure is compared with the default one and the issues arising from massive simultaneous Access from mobile terminals in LTE are assessed via a simulation campaign.

    Free Register to Access Article

Michele Zorzi – One of the best experts on this subject based on the ideXlab platform.

  • Initial Access in Millimeter Wave Cellular Systems
    IEEE Transactions on Wireless Communications, 2016
    Co-Authors: C. Nicolas Barati, S. Amir Hosseini, Marco Mezzavilla, Thanasis Korakis, Shivendra S Panwar, Sylvie Rangan, Michele Zorzi

    Abstract:

    Millimeter wave (mmWave) bands have attracted considerable recent interest for next-generation cellular systems due to the massive available spectrum at these frequencies. However, a key challenge in designing mmWave cellular systems is initial Access—the Procedure by which a mobile device establishes an initial link-layer connection to a cell. MmWave communication relies on highly directional transmissions and the initial Access Procedure must thus provide a mechanism by which initial transmission directions can be searched in a potentially large angular space. Design options are compared considering different scanning and signaling Procedures to evaluate Access delay and system overhead. The channel structure and multiple Access issues are also considered. The results of our analysis demonstrate significant benefits of low-resolution fully digital architectures in comparison with single stream analog beamforming.

    Free Register to Access Article

  • ICC – M2M massive Access in LTE: RACH performance evaluation in a Smart City scenario
    2016 IEEE International Conference on Communications (ICC), 2016
    Co-Authors: Michele Polese, Marco Centenaro, Andrea Zanella, Michele Zorzi

    Abstract:

    Several studies assert that the random Access Procedure of the Long Term Evolution (LTE) cellular standard may not be effective whenever a massive number of simultaneous connection attempts are performed by terminals, as may happen in a typical Internet of Things or Smart City scenario. Nevertheless, simulation studies in real deployment scenarios are missing because many system-level simulators do not implement the LTE random Access Procedure in detail. In this paper, we propose a patch for the LTE module of ns-3, one of the most prominent open-source network simulators, to improve the accuracy of the routine that simulates the LTE Random Access Channel (RACH). The patched version of the random Access Procedure is compared with the default one and the issues arising from massive simultaneous Access from mobile terminals in LTE are assessed via a simulation campaign.

    Free Register to Access Article

  • m2m massive Access in lte rach performance evaluation in a smart city scenario
    International Conference on Communications, 2016
    Co-Authors: Michele Polese, Marco Centenaro, Andrea Zanella, Michele Zorzi

    Abstract:

    Several studies assert that the random Access Procedure of the Long Term Evolution (LTE) cellular standard may not be effective whenever a massive number of simultaneous connection attempts are performed by terminals, as may happen in a typical Internet of Things or Smart City scenario. Nevertheless, simulation studies in real deployment scenarios are missing because many system-level simulators do not implement the LTE random Access Procedure in detail. In this paper, we propose a patch for the LTE module of ns-3, one of the most prominent open-source network simulators, to improve the accuracy of the routine that simulates the LTE Random Access Channel (RACH). The patched version of the random Access Procedure is compared with the default one and the issues arising from massive simultaneous Access from mobile terminals in LTE are assessed via a simulation campaign.

    Free Register to Access Article

Volker Braun – One of the best experts on this subject based on the ideXlab platform.

  • Comparison of Collision-Free and Contention-Based Radio Access Protocols for the Internet of Things
    IEEE Transactions on Communications, 2017
    Co-Authors: Marco Centenaro, Lorenzo Vangelista, Stephan Saur, Andreas Weber, Volker Braun

    Abstract:

    The fifth-generation (5G) cellular networks will face the challenge of integrating the traditional broadband services with the Internet of Things (IoT), which is characterized by sporadic uplink transmissions of small data packets. Indeed, the Access Procedure of the previous generation cellular network (4G) is not able to support IoT traffic efficiently because it requires a large amount of signaling for the connection setup before the actual data transmission. In this context, we introduce two innovative radio Access protocols for sporadic transmissions of small data packets, which are suitable for 5G networks because they provide a resource-efficient packet delivery exploiting a connection-less approach. The core of this paper resides in the derivation of an analytical framework to evaluate the performance of all the aforementioned protocols. The final goal is the comparison between 4G and 5G radio Access solutions employing both our analytical framework and computer simulations. The performance evaluation results show the benefits of the protocols envisioned for 5G in terms of signaling overhead and Access latency.

    Free Register to Access Article