The Experts below are selected from a list of 19839 Experts worldwide ranked by ideXlab platform

Rena Vafi - One of the best experts on this subject based on the ideXlab platform.

  • via improving internet telephony call quality using predictive relay selection
    ACM Special Interest Group on Data Communication, 2016
    Co-Authors: Junche Jiang, Rajdeep Das, Ganesh Ananthanarayana, Philip A Chou, Venkata N Padmanabha, Vyas Seka, Esbjo Dominique, Marci Goliszewski, Dalibo Kukoleca, Rena Vafi
    Abstract:

    Interactive real-time streaming applications such as audio-video conferencing, online gaming and app streaming, place stringent requirements on the network in terms of delay, jitter, and packet loss. Many of these applications inherently involve client-to-client Communication, which is particularly challenging since the performance requirements need to be met while traversing the public wide-area network (WAN). This is different from the typical situation of cloud-to-client Communication, where the WAN can often be bypassed by moving a Communication End-Point to a cloud “edge”, close to the client. Can we nevertheless take advantage of cloud resources to improve the performance of real-time client-to-client streaming over the WAN? In this paper, we start by analyzing data from a large VoIP provider whose clients are spread across over 21,000 AS’es and nearly all the countries, to understand the challenges faced by interactive audio streaming in the wild. We find that while inter-AS and international paths exhibit significantly worse performance than intra-AS and domestic paths, the pattern of poor performance is nevertheless quite scattered, both temporally and spatially. So any effort to improve performance would have to be fine-grained and dynamic. Then, we turn to the idea of overlay routing, but in the context of the well-provisioned, managed network of a cloud provider rather than peer-to-peer as has been considered in past work. Such a network typically has a global footprint and peers with a large number of network providers. When the performance of a call via the direct path is predicted to be poor, the call traffic could be directed to enter the managed network close to one End Point and exit it close to the other End Point, thereby avoiding wide-area Communication over the public Internet. We present and evaluate data-driven techniques to deciding whether to relay a call through the managed network and if so how to pick the ingress and egress relays to maximize performance, all while operating within a budget for relaying calls via the managed overlay network. We show that call performance can potentially improve by 40%-80% on average, with our techniques closely matching it.

Shigeru Iwashina - One of the best experts on this subject based on the ideXlab platform.

  • CSCN - Applying Anchorless Routing to 5G Network
    2018 IEEE Conference on Standards for Communications and Networking (CSCN), 2018
    Co-Authors: Koji Tsubouchi, Ashiq Khan, Goro Kunito, Shigeru Iwashina
    Abstract:

    Ultra Reliable and Low Latency Communication (URLLC) is one of the most important and expected use cases to be realized in 5G mobile networks. In some cases, URLLC requires low latency Communication and IP session continuity at the same time. Current 5G system routing defined by 3GPP which adopts conventional tunnel based routing approach, however, does not satisfy those requirements simultaneously due to semi-static anchor Point for each End Point device. To address this issue, we have proposed to apply a new routing approach in 5G system, which separates Communication End Point device's identifier from its locator. With this approach, IP session continuity can be guaranteed without the necessity of anchor Points found in conventional 3GPP mobile network systems. In this paper, we discuss the possible deployment scenarios of the proposed routing as to where and how to apply the proposed routing to 5G system defined by 3GPP, and provide a qualitative analysis.

  • anchorless routing for urllc services in 5g network
    Vehicular Technology Conference, 2018
    Co-Authors: Koji Tsubouchi, Ryosuke Kurebayashi, Ashiq Khan, Goro Kunito, Shigeru Iwashina
    Abstract:

    Cellular V2X is one of the most attractive use cases in 5G mobile network. Some V2X use cases require low latency Communication between vehicles and/or vehicles and ITS servers, as well as IP session continuity for vehicles. Current 5G system routing defined by 3GPP which adopts conventional tunnel based routing approach, however, does not satisfy those requirements simultaneously due to semi-static anchor Point for each End Point device. To address this issue, we propose to apply a new routing approach in 5G, which separates Communication End Point device's identifier from its locator. With this approach, IP session continuity can be guaranteed without the necessity of anchor Points found in conventional 3GPP mobile network systems. The comprehensive evaluation between the proposed anchorless routing and conventional 3GPP system routing proves the benefits of the proposed routing.

  • VTC-Fall - Anchorless Routing for URLLC Services in 5G Network
    2018 IEEE 88th Vehicular Technology Conference (VTC-Fall), 2018
    Co-Authors: Koji Tsubouchi, Ryosuke Kurebayashi, Ashiq Khan, Goro Kunito, Shigeru Iwashina
    Abstract:

    Cellular V2X is one of the most attractive use cases in 5G mobile network. Some V2X use cases require low latency Communication between vehicles and/or vehicles and ITS servers, as well as IP session continuity for vehicles. Current 5G system routing defined by 3GPP which adopts conventional tunnel based routing approach, however, does not satisfy those requirements simultaneously due to semi-static anchor Point for each End Point device. To address this issue, we propose to apply a new routing approach in 5G, which separates Communication End Point device's identifier from its locator. With this approach, IP session continuity can be guaranteed without the necessity of anchor Points found in conventional 3GPP mobile network systems. The comprehensive evaluation between the proposed anchorless routing and conventional 3GPP system routing proves the benefits of the proposed routing.

Junche Jiang - One of the best experts on this subject based on the ideXlab platform.

  • via improving internet telephony call quality using predictive relay selection
    ACM Special Interest Group on Data Communication, 2016
    Co-Authors: Junche Jiang, Rajdeep Das, Ganesh Ananthanarayana, Philip A Chou, Venkata N Padmanabha, Vyas Seka, Esbjo Dominique, Marci Goliszewski, Dalibo Kukoleca, Rena Vafi
    Abstract:

    Interactive real-time streaming applications such as audio-video conferencing, online gaming and app streaming, place stringent requirements on the network in terms of delay, jitter, and packet loss. Many of these applications inherently involve client-to-client Communication, which is particularly challenging since the performance requirements need to be met while traversing the public wide-area network (WAN). This is different from the typical situation of cloud-to-client Communication, where the WAN can often be bypassed by moving a Communication End-Point to a cloud “edge”, close to the client. Can we nevertheless take advantage of cloud resources to improve the performance of real-time client-to-client streaming over the WAN? In this paper, we start by analyzing data from a large VoIP provider whose clients are spread across over 21,000 AS’es and nearly all the countries, to understand the challenges faced by interactive audio streaming in the wild. We find that while inter-AS and international paths exhibit significantly worse performance than intra-AS and domestic paths, the pattern of poor performance is nevertheless quite scattered, both temporally and spatially. So any effort to improve performance would have to be fine-grained and dynamic. Then, we turn to the idea of overlay routing, but in the context of the well-provisioned, managed network of a cloud provider rather than peer-to-peer as has been considered in past work. Such a network typically has a global footprint and peers with a large number of network providers. When the performance of a call via the direct path is predicted to be poor, the call traffic could be directed to enter the managed network close to one End Point and exit it close to the other End Point, thereby avoiding wide-area Communication over the public Internet. We present and evaluate data-driven techniques to deciding whether to relay a call through the managed network and if so how to pick the ingress and egress relays to maximize performance, all while operating within a budget for relaying calls via the managed overlay network. We show that call performance can potentially improve by 40%-80% on average, with our techniques closely matching it.

Koji Tsubouchi - One of the best experts on this subject based on the ideXlab platform.

  • CSCN - Applying Anchorless Routing to 5G Network
    2018 IEEE Conference on Standards for Communications and Networking (CSCN), 2018
    Co-Authors: Koji Tsubouchi, Ashiq Khan, Goro Kunito, Shigeru Iwashina
    Abstract:

    Ultra Reliable and Low Latency Communication (URLLC) is one of the most important and expected use cases to be realized in 5G mobile networks. In some cases, URLLC requires low latency Communication and IP session continuity at the same time. Current 5G system routing defined by 3GPP which adopts conventional tunnel based routing approach, however, does not satisfy those requirements simultaneously due to semi-static anchor Point for each End Point device. To address this issue, we have proposed to apply a new routing approach in 5G system, which separates Communication End Point device's identifier from its locator. With this approach, IP session continuity can be guaranteed without the necessity of anchor Points found in conventional 3GPP mobile network systems. In this paper, we discuss the possible deployment scenarios of the proposed routing as to where and how to apply the proposed routing to 5G system defined by 3GPP, and provide a qualitative analysis.

  • anchorless routing for urllc services in 5g network
    Vehicular Technology Conference, 2018
    Co-Authors: Koji Tsubouchi, Ryosuke Kurebayashi, Ashiq Khan, Goro Kunito, Shigeru Iwashina
    Abstract:

    Cellular V2X is one of the most attractive use cases in 5G mobile network. Some V2X use cases require low latency Communication between vehicles and/or vehicles and ITS servers, as well as IP session continuity for vehicles. Current 5G system routing defined by 3GPP which adopts conventional tunnel based routing approach, however, does not satisfy those requirements simultaneously due to semi-static anchor Point for each End Point device. To address this issue, we propose to apply a new routing approach in 5G, which separates Communication End Point device's identifier from its locator. With this approach, IP session continuity can be guaranteed without the necessity of anchor Points found in conventional 3GPP mobile network systems. The comprehensive evaluation between the proposed anchorless routing and conventional 3GPP system routing proves the benefits of the proposed routing.

  • VTC-Fall - Anchorless Routing for URLLC Services in 5G Network
    2018 IEEE 88th Vehicular Technology Conference (VTC-Fall), 2018
    Co-Authors: Koji Tsubouchi, Ryosuke Kurebayashi, Ashiq Khan, Goro Kunito, Shigeru Iwashina
    Abstract:

    Cellular V2X is one of the most attractive use cases in 5G mobile network. Some V2X use cases require low latency Communication between vehicles and/or vehicles and ITS servers, as well as IP session continuity for vehicles. Current 5G system routing defined by 3GPP which adopts conventional tunnel based routing approach, however, does not satisfy those requirements simultaneously due to semi-static anchor Point for each End Point device. To address this issue, we propose to apply a new routing approach in 5G, which separates Communication End Point device's identifier from its locator. With this approach, IP session continuity can be guaranteed without the necessity of anchor Points found in conventional 3GPP mobile network systems. The comprehensive evaluation between the proposed anchorless routing and conventional 3GPP system routing proves the benefits of the proposed routing.

Rajdeep Das - One of the best experts on this subject based on the ideXlab platform.

  • via improving internet telephony call quality using predictive relay selection
    ACM Special Interest Group on Data Communication, 2016
    Co-Authors: Junche Jiang, Rajdeep Das, Ganesh Ananthanarayana, Philip A Chou, Venkata N Padmanabha, Vyas Seka, Esbjo Dominique, Marci Goliszewski, Dalibo Kukoleca, Rena Vafi
    Abstract:

    Interactive real-time streaming applications such as audio-video conferencing, online gaming and app streaming, place stringent requirements on the network in terms of delay, jitter, and packet loss. Many of these applications inherently involve client-to-client Communication, which is particularly challenging since the performance requirements need to be met while traversing the public wide-area network (WAN). This is different from the typical situation of cloud-to-client Communication, where the WAN can often be bypassed by moving a Communication End-Point to a cloud “edge”, close to the client. Can we nevertheless take advantage of cloud resources to improve the performance of real-time client-to-client streaming over the WAN? In this paper, we start by analyzing data from a large VoIP provider whose clients are spread across over 21,000 AS’es and nearly all the countries, to understand the challenges faced by interactive audio streaming in the wild. We find that while inter-AS and international paths exhibit significantly worse performance than intra-AS and domestic paths, the pattern of poor performance is nevertheless quite scattered, both temporally and spatially. So any effort to improve performance would have to be fine-grained and dynamic. Then, we turn to the idea of overlay routing, but in the context of the well-provisioned, managed network of a cloud provider rather than peer-to-peer as has been considered in past work. Such a network typically has a global footprint and peers with a large number of network providers. When the performance of a call via the direct path is predicted to be poor, the call traffic could be directed to enter the managed network close to one End Point and exit it close to the other End Point, thereby avoiding wide-area Communication over the public Internet. We present and evaluate data-driven techniques to deciding whether to relay a call through the managed network and if so how to pick the ingress and egress relays to maximize performance, all while operating within a budget for relaying calls via the managed overlay network. We show that call performance can potentially improve by 40%-80% on average, with our techniques closely matching it.

  • SIGCOMM - Via: Improving Internet Telephony Call Quality Using Predictive Relay Selection
    Proceedings of the 2016 ACM SIGCOMM Conference, 2016
    Co-Authors: Junchen Jiang, Rajdeep Das, Philip A Chou, Marci Goliszewski, Dalibo Kukoleca, Ganesh Ananthanarayanan, Venkata N. Padmanabhan, Vyas Sekar, Esbjorn Dominique, Renat Vafin
    Abstract:

    Interactive real-time streaming applications such as audio-video conferencing, online gaming and app streaming, place stringent requirements on the network in terms of delay, jitter, and packet loss. Many of these applications inherently involve client-to-client Communication, which is particularly challenging since the performance requirements need to be met while traversing the public wide-area network (WAN). This is different from the typical situation of cloud-to-client Communication, where the WAN can often be bypassed by moving a Communication End-Point to a cloud “edge”, close to the client. Can we nevertheless take advantage of cloud resources to improve the performance of real-time client-to-client streaming over the WAN? In this paper, we start by analyzing data from a large VoIP provider whose clients are spread across over 21,000 AS’es and nearly all the countries, to understand the challenges faced by interactive audio streaming in the wild. We find that while inter-AS and international paths exhibit significantly worse performance than intra-AS and domestic paths, the pattern of poor performance is nevertheless quite scattered, both temporally and spatially. So any effort to improve performance would have to be fine-grained and dynamic. Then, we turn to the idea of overlay routing, but in the context of the well-provisioned, managed network of a cloud provider rather than peer-to-peer as has been considered in past work. Such a network typically has a global footprint and peers with a large number of network providers. When the performance of a call via the direct path is predicted to be poor, the call traffic could be directed to enter the managed network close to one End Point and exit it close to the other End Point, thereby avoiding wide-area Communication over the public Internet. We present and evaluate data-driven techniques to deciding whether to relay a call through the managed network and if so how to pick the ingress and egress relays to maximize performance, all while operating within a budget for relaying calls via the managed overlay network. We show that call performance can potentially improve by 40%-80% on average, with our techniques closely matching it.