HTTP/2 and QUIC for Virtual Worlds and the 3D Web?

Abstract The continuing advances in computer graphics and Internet bandwidths are supporting a gradual convergence between multi-user virtual worlds (MUVW), such as Second Life and OpenSim (SL/OS), and the nascent 3D Web. However, significant networking barriers remain to exploiting these capabilities for developing the 3D Web. These barriers include latency of content update and firewall blocking. In MUVWs the firewall and latency problems are related as the SL/OS network protocols designed over twelve years ago sought to minimise latency through the use of multiple concurrent UDP-based virtual circuits. Most firewall administrators are loathe to open up over fifty unknown UDP ports to accommodate such applications. New protocols now being deployed on the web such as SPDY, HTTP/2 and QUIC seek to reduce latency and routinely traverse firewalls. One of the key goals of the convergence between MUVWs and the 3D Web is for MUVW functionality to be provided in a standard web browser, with optional links to other autonomous virtual worlds. It follows that as an incremental step towards the 3D Web the use of these new web protocols in MUVWs should be researched. This paper details traffic management approaches in SL/OS MUVWs, clarifies 3D Web concepts and terminology, explains the functionality provided by the new web protocols, and provides a mapping which postulates how their features can be exploited for the benefit of MUVWs as part of the convergence with the 3D Web.

[1]  David Wetherall,et al.  How Speedy is SPDY? , 2014, NSDI.

[2]  Alan Miller,et al.  Virtual worlds, real traffic: interaction and adaptation , 2010, MMSys '10.

[3]  Cesare Roseti,et al.  SPDY multiplexing approach on long-latency links , 2014, 2014 IEEE Wireless Communications and Networking Conference (WCNC).

[4]  Cristina Nita-Rotaru,et al.  How Secure and Quick is QUIC? Provable Security and Performance Analyses , 2015, 2015 IEEE Symposium on Security and Privacy.

[5]  Ilya Grigorik.  Making the web faster with HTTP 2.0 , 2013, CACM.

[6]  Mark Claypool,et al.  Traffic analysis of avatars in Second Life , 2008, NOSSDAV.

[7]  Roberto Peon,et al.  HPACK: Header Compression for HTTP/2 , 2015, RFC.

[8]  Alan Miller,et al.  Virtual Machines for Virtual Worlds , 2012, CLOSER.

[9]  Alan Miller,et al.  Growing the use of Virtual Worlds in education : an OpenSim perspective , 2012 .

[10]  Marc Fischlin,et al.  Multi-Stage Key Exchange and the Case of Google's QUIC Protocol , 2014, CCS.

[11]  Steven Warburton,et al.  Second Life in higher education: Assessing the potential for and the barriers to deploying virtual worlds in learning and teaching , 2009, Br. J. Educ. Technol..

[12]  Henrik Frystyk Nielsen,et al.  A comparison of SPDY and HTTP performance , 2012 .

[13]  Colin Allison,et al.  Towards successful 3D virtual learning - a case study on teaching human computer interaction , 2009, 2009 International Conference for Internet Technology and Secured Transactions, (ICITST).

[14]  Daniel Stenberg.  HTTP2 explained , 2014, CCRV.

[15]  Pradeep Dubey,et al.  Second Life and the New Generation of Virtual Worlds , 2008, Computer.

[16]  Pietro Michiardi,et al.  Characterizing user mobility in second life , 2008, WOSN '08.

[17]  Aditya Akella,et al.  Improving the performance of SPDY for mobile devices , 2015 .

[18]  Djamel Sadok,et al.  Traffic Analysis Beyond This World: the Case of Second Life , 2007 .

[19]  Alan Miller,et al.  Extending the Use of Virtual Worlds as an Educational Platform - Network Island: An Advanced Learning Environment for Teaching Internet Routing Algorithms , 2011, CSEDU.

[20]  Christophe Diot,et al.  Is there life in Second Life? , 2008, CoNEXT '08.

[21]  Alan Miller,et al.  802.11 wireless experiments in a virtual world , 2009, ITiCSE '09.

[22]  Wei Tsang Ooi,et al.  Textures in Second Life: Measurement and Analysis , 2008, 2008 14th IEEE International Conference on Parallel and Distributed Systems.

[23]  Poul-Henning Kamp.  HTTP/2.0 - The IETF is Phoning It In , 2015, ACM Queue.

[24]  Paulo Martins,et al.  Using Second Life for Problem Based Learning in computer science programming , 2009 .

[25]  Alan Miller,et al.  Educationally enhanced virtual worlds , 2010, 2010 IEEE Frontiers in Education Conference (FIE).

[26]  Alan Miller,et al.  Mongoose: Throughput Redistributing Virtual World , 2012, 2012 21st International Conference on Computer Communications and Networks (ICCCN).

[27]  Yehia El-khatib,et al.  The Effect of Network and Infrastructural Variables on SPDY's Performance , 2014, ArXiv.

[28]  Iain Angus Oliver,et al.  Adaptive network traffic management for multi user virtual environments , 2011 .

[29]  Alberto Gotta,et al.  Performance Evaluation of SPDY over High Latency Satellite Channels , 2013, PSATS.

[30]  Alan Miller,et al.  Mongoose: A TCP Fair Second Life client , 2010 .

[31]  Alan Miller,et al.  Metaverses as a Platform for Game Based Learning , 2010, 2010 24th IEEE International Conference on Advanced Information Networking and Applications.

[32]  Carlos Alberto Kamienski,et al.  Traffic analysis and synthetic models of second life , 2009, Multimedia Systems.

[33]  Luca De Cicco,et al.  HTTP over UDP: an experimental investigation of QUIC , 2015, SAC.

[34]  Sungwon Lee,et al.  Performance Analysis of SPDY Protocol in Wired and Mobile Networks , 2014 .

[35]  Neil Katz,et al.  Extending Web Browsers with a Unity 3D-Based Virtual Worlds Viewer , 2011, IEEE Internet Computing.

[36]  Raja Jurdak,et al.  SPDYing up the web , 2012, CACM.