ORCHESTRA: Supercharging Wireless Backhaul Networks Through Multi-technology Management
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ORCHESTRA: Supercharging Wireless Backhaul Networks Through Multi‑technology Management Tom De Schepper1 · Patrick Bosch1 · Jakob Struye1 · Carlos Donato1 · Jeroen Famaey1 · Steven Latré1 Received: 15 January 2020 / Revised: 23 February 2020 / Accepted: 11 March 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Today’s and tomorrow’s networks are becoming increasingly complex and heterogeneous with a large diversity of devices and technologies. To meet growing demand, and support client mobility there is need for intelligent mechanisms like multi-technology load balancing and handovers. Current solutions, like Multipath Transmission Control Protocol (MPTCP), fail to provide a fine-grained, coordinated, and transparent answer to this heterogeneity, while the lower layers of the Open Systems Interconnection stack simply ignore it by providing full separation of layers. Therefore, we introduce ORCHESTRA, a data link layer framework for the management of multi-technology networks and devices, enabling packet-level dynamic handovers, load balancing, and duplication across network technologies. The framework is the first of its kind in providing fine-grained packet-level control across different technologies in a network-wide manner. Moreover, it works on top of existing standards without the need for hardware changes. This is achieved through a fully transparent virtual Medium Access Control layer and a Software-Defined Networking controller with global intelligence. The framework is implemented in a prototype running on off-the-shelf hardware and we demonstrate its features across different IEEE 802.11 technologies and 4G (Long Term Evolution). We demonstrate that ORCHESTRA outperforms MPTCP and allows for real-time inter-technology handovers and that overall throughput and reliability are improved in wireless networks. Keywords Heterogeneous network orchestration · Multi-technology handover · Virtual MAC layer · Load balancing
* Tom De Schepper [email protected] Extended author information available on the last page of the article
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Vol.:(0123456789)
Journal of Network and Systems Management
1 Introduction Over the years, there has been a tremendous increase in data communication and in the capacity of wireless communication systems. For instance, monthly global mobile data traffic will reach 50 exabytes in 2021, while the number of connected devices is expected to at least reach 28.5 billion by 2022 [1, 2]. More and more (wireless) networking technologies have been developed and added to a plethora of consumer and infrastructure devices to cope with this explosive increase in traffic. In home networks, we can find Ethernet and a mix of wireless technologies like IEEE 802.11 (Wi-Fi), Bluetooth, and ZigBee. Similarly, satellite, LongTerm Evolution (LTE), and 802.11 technologies are being embedded, among others, into smart vehicles. This growth and diversity among technologies and devices will further increase with technological advancements and new technologies bei
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