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Browsing by Subject "Wi-Fi"

Now showing items 1-20 of 27

    • Bargaining-based mobile data offloading 

      Gao, L.; Iosifidis, G.; Huang, J.; Tassiulas, L.; Li, D. (2014)
      The unprecedented growth of mobile data traffic challenges the performance and economic viability of today's cellular networks and calls for novel network architectures and communication solutions. Data offloading through ...

    • Building virtual 802.11 testbeds towards open 5G experimentation 

      Kousias K., Katsalis K., Stavropoulos D., Korakis T., Tassiulas L. (2016)
      Together with recent advancements in Radio Access Network (RAN) technologies, Wi-Fi is expected to be at the center of research on the subject of ubiquitous wireless connectivity, towards building the new 5G ecosystem. ...

    • C2M: Mobile data offloading to mesh networks 

      Apostolaras, A.; Iosifidis, G.; Chounos, K.; Korakis, T.; Tassiulas, L. (2014)
      As the unprecedented growth of mobile data traffic places significant strain on cellular networks, alternative plans for exploiting already existing and under-utilized wireless infrastructure, become quite attractive. In ...

    • Cloud-based convergence of heterogeneous RANs in 5G disaggregated architectures 

      Makris N., Zarafetas C., Basaras P., Korakis T., Nikaein N., Tassiulas L. (2018)
      Cloud-RAN based architectures are widely considered a fundamental part of 5G networks. As a consequence, in the upcoming standards for 5G RAN, disaggregating the RAN functionality between a Central Unit (CU) and multiple ...

    • Contention and traffic load-aware association in IEEE 802.11 WLANs: Algorithms and implementation 

      Keranidis, S.; Korakis, T.; Koutsopoulos, I.; Tassiulas, L. (2011)
      Efficient association of a station with the appropriate access point has always been a challenging problem. The standard approach of considering only the Received Signal Strength, has recently been substituted by more ...

    • Cross-testbed experimentation using the Planetlab-NITOS federation 

      Makris, N.; Keranidis, S.; Giatsios, D.; Korakis, T.; Koutsopoulos, I.; Tassiulas, L.; Rakotoarivelo, T.; Parmentelat, T. (2012)
      Federation of network testbeds has been identified as a key goal in the experimental testbeds community, leading to a recent activity burst in this research field. In this demo, we describe a federated experiment between ...

    • A demonstration of video over an IEEE 802.11 compliant version of the enhanced-backpressure algorithm 

      Choumas, K.; Korakis, T.; Koutsopoulos, I.; Tassiulas, L. (2012)
      This demo presents a novel routing and scheduling scheme, named Enhanced-Backpressure over WiFi (EBoW), that obviously outperforms the dominant approach of a shortest-path routing (SRCR) combined with the classic CSMA/CA ...

    • Enabling experimentation in mobile sensing scenarios through 4G networks: The NITOS approach 

      Stavropoulos D., Kazdaridis G., Makris N., Niavis H., Igoumenos I., Korakis T., Tassiulas L. (2015)
      Wireless technologies have evolved rapidly over the past years, directly affecting our everyday living with the wide penetration of smart mobile devices. As such, the research community has placed major efforts in shaping ...

    • Enabling mobile sensing through a DTN framework 

      Maglogiannis, V.; Kazdaridis, G.; Stavropoulos, D.; Korakis, T.; Tassiulas, L. (2013)
      Participatory Sensing is the concept of distributed data collection by self-selected participants. By exploiting latest technology's smart devices, a large number of valuable information can be collected through embedded ...

    • Enhancing WPS security 

      Zisiadis, D.; Kopsidas, S.; Varalis, A.; Tassiulas, L. (2012)
      The main concern on the use of wireless technologies is security, due to the nature of the medium. User awareness in order to implement efficient security configurations is an important requirement raised by the technology, ...

    • Flexible cross-technology offloading using SDN 

      Zarafetas C., Makris N., Apostolaras A., Korakis T., Tassiulas L. (2017)
      Ultra-dense networks are expected to be the vehicle for better network coverage featuring higher speeds, augmented network capacity and more per cell end-users served. Towards meeting these stiff requirements, cells of ...

    • Forging client mobility with OpenFlow: An experimental study 

      Makris N., Choumas K., Zarafetas C., Korakis T., Tassiulas L. (2016)
      The wide proliferation of IEEE 802.11 compatible devices and the provisioning of costless Internet connectivity in most cases, have created fertile ground for investigating seamless client mobility and handoff management ...

    • A framework for mobile data offloading to leased cache-endowed small cell networks 

      Poularakis, K.; Iosifidis, G.; Tassiulas, L. (2015)
      Cache-endowed small cell networks constitute a timely and effective solution for mobile network operators (MNOs) who strive to serve the massive content demand of the mobile users. However, the deployment of small cell ...

    • Hybrid data pricing for network-assisted user-provided connectivity 

      Gao, L.; Iosifidis, G.; Huang, J.; Tassiulas, L. (2014)
      User-provided connectivity (UPC) is a promising paradigm to achieve a low-cost ubiquitous connectivity. In this paper, we study a network-assisted UPC service model, where a mobile virtual network operator (MVNO) enables ...

    • Implementation and end-to-end throughput evaluation of an IEEE 802.11 compliant version of the enhanced-backpressure algorithm 

      Choumas, K.; Korakis, T.; Koutsopoulos, I.; Tassiulas, L. (2012)
      Extensive work has been done in wireless multihop routing with several ideas based on shortest path or load balancing routing algorithms, that aim at minimizing end-to-end delay or maximizing throughput respectively. ...

    • Implementation experience in multi-domain SDN: Challenges, consolidation and future directions 

      Katsalis K., Rofoee B., Landi G., Riera J.F., Kousias K., Anastasopoulos M., Kiraly L., Tzanakaki A., Korakis T. (2017)
      Network architectures compliant with the Software Defined Networking (SDN) design paradigm, are expected to provide extreme flexibility for service orientation and allow for efficient use of network resources of cloud ...

    • An iterative double auction for mobile data offloading 

      Iosifidis, G.; Gao, L.; Huang, J.; Tassiulas, L. (2013)
      Mobile data offloading through complementary network technologies such as WiFi and femtocell can significantly alleviate network congestion and enhance users' QoS. In this paper we consider a market where mobile network ...

    • MEC service placement over the fronthaul of 5G cloud-RANs 

      Passas V., Makris N., Nanis C., Korakis T. (2019)
      Radio Access Network (RAN) disaggregation is transforming mobile networks, as it allows the single click instantiation of base stations in the Cloud, and can potentially ease the integration of heterogeneous technologies ...

    • Mobile Data Offloading Through Caching in Residential 802.11 Wireless Networks 

      Poularakis K., Iosifidis G., Pefkianakis I., Tassiulas L., May M. (2016)
      As the ever growing mobile data traffic challenges the economic viability and performance of cellular networks, innovative solutions that harvest idle user-owned network resources are gaining increasing interest. In this ...

    • New channel allocation techniques for power efficient WiFi networks 

      Miliotis, V.; Apostolaras, A.; Korakis, T.; Tao, Z.; Tassiulas, L. (2010)
      Energy efficiency becomes evergreen than ever before. Over the last few years a significant research in wireless communications, aiming to enhance communications efficiency subject to constraint of power consumption, has ...