5G and Software-defined Networking (SDN)

Transcription

1 5G and Software-defined Networking (SDN) Toktam Mahmoodi King s College London 17 March 2015 IET 5G Radio Technology Seminar

2 Who is Online? People have gone online with multi-user computers for over half a century. Military pioneers in the 1950 were joined by academics and business people in the 1960s, and by the first general users in the 1970s. The 1980s saw an explosion of choices. The 1990s boiled them down to the Web and Internet, which went mobile in the 2000s.

3 Change of Online Pattern Mobile media usage throughout the day, InMobile & On Device Research, mobile media consumption, February 2012.

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5 Endless Races: Controlling small cells & limited Spectrum They envision only 100 channels (far more would be needed). Because the cells were so small, a moving vehicle might now pass through many cells during a call. This would add complexity to both the mobile unit and the base station, and would require a massive central computer. Notes from first cellular meeting, Jan 17, 1966 Cellular Dreams and Cordless Nightmares: Life at Bell Laboratories in Interesting Times

6 50Y of Evolution to 5G Convergence Blended wireless infrastructure Autonomy Devices are the cells More capable devices Over the top services Predictability Rich set of applications Cloud-based services Mobility/content/usage patterns are predictable Open interfaces

7 Central control: a machine that solves it all Turing Machine by Tom Dunne, in American Scientist

8 Big list of advantages of SDN in Mobile Flexible support of middleboxes Better inter-cell interference management Scalable distributed enforcement of QoS and firewall policies in data plane Flexible support of virtual operators by partitioning flow space Seamless subscriber mobility across technologies L. Li, M. Mao, and J Rexford, Towards Software Defined Cellular Networks, EWSDN 2012.

9 The real importance Abstraction is fundamental to separate concerns to make problems modular and tractable. Abstraction is fundamental to enable innovative new businesses

10 Abstraction Deliver Convergence Blended wireless infrastructure Deal with Autonomy Devices are the cells Use the Predictability Mobility/content/usage patterns are predictable

11 Management plane BSS/Operator scripts 3GPP clients Diffserv State Distrib Resourc e mgmt Topology Mobility Routing and GTP Value-added services NFV control Platform essentials Subscriber and UE info Pica-8 p-3290 OpenFlow switch Controller End User domain Emulate access and backhaul (L2/3 routers, BSs) Management plane BSS/OS S Core network MME HSS PCR F SDN ControllerData analysis machine Gateway(s) OpenFlow enabled General purpose machines

12 Device Centric Networking Taking the race of small cells to the limit Every device is the cell Autonomous devices Predictable patterns

13 Using location profile for selecting access Bringing device to the centre of network architecture Device measurements Integrating abstract network view through open interface Integrating Location profile Device-only Network view Location profile Using Learning based approach

14 KCL in H2020 5G NORMA 5G Novel Radio Multiservice & flexible Network Architecture VirtuWind Virtual and Programmable industrial network prototype deployed in operational Wind park

15 Recent/Relevant Publications [1] Radio resource sharing as a service in 5G: SDN approach, in collaboration with UoA, to appear in IEEE Trans. NSM, [2] Convergence of Radio Access in 5G, in collaboration with UoA, to appear in Proc of IEEE, [3] Handling the Increasing Volume of Mobile Data Traffic: On Using SDN-based control plane in 5G, IEEE VT Magazine, Sept [4] SDN-based Data Offloading for 5G Mobile Networks, ZTE Communication Magazine, June 2014, and ICC 2014 proceeding. [5] Network Selection for Autonomous Mobile Devices, in proc. WoNS 2013.

16 5G and Software-defined Networking (SDN) Toktam Mahmoodi King s College London 17 March 2015 IET 5G Radio Technology Seminar