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Explore the evolving landscape of access network platforms, from mobile to fixed networks, covering voice services, internet access, TV, and more. Discover the pros and cons of mobile and fixed networks, along with the trends shaping their development. Dive into technologies like xDSL, VDSL2, and PON, and learn about the impact of WiMAX and WiFi integration. Understand the challenges and opportunities in providing seamless connectivity through LTE standards and integrated network architectures. Stay ahead of the curve in the dynamic world of access networks.
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The Trends in Developing Access Network PlatformsPaweł Olech EXATEL S.A. FITCE CONGRESS Warsaw, 30th Aug-1st Sep 2007
Today Tomorrow Yesterday • Mobile networks • Voice Services Internet Access • SMS, MMS, Data Transmission • Fixed networks • Voice Services Internet Access TV • Mobile networks • Voice services • Internet access • Videoconferencing • TV • Fixed networks • Voice Services • Internet Access • TV,HDTV, VOD Mobile networks Voice Services Fixed networks Voice Services
Access networks Fixed networksxDSL VDSL2Opticalnetworks(PON) Mobile networksGSM UMTSWIMAX + WiFiCDMA
Mobile networks • Pros • Wide area coverage • Mobility of subscribers • Cons • Limited RF resources • Shared bandwidth Fixed networks • Pros • Dedicated bandwidth • Provision of multimedia services • Cons • High CapEx • Lack of mobility
Fixed networks - evolution • Optical fibrecables • Built-in backbone networks • FTTC • FTTB • FTTH Pros: unrestricted bandwidth Cons: high network build costs
Mobile networks – trends in development Target Solution = LTEStandard
Mobile networks – integrated network architecture • Implemented technology • Unlimited access • Roaming
WiMAX (802.16-2004) + WiFi (802.11n) • Pros: • Low cost of equipment • Competitive prices • Cons: • Evolving technology • Geographical limitations (e.g.,due to lack of roaming)
WIMAX or G3.x? • Wimax • The 802.16-2004 release • Market niches – for mobile and fixed telcos • Services offered for rural areas • The 802.16-2005 release • Depending on launching scale • Mobile network standard – global coverage • Local „islands” – supported by WiFi • G3.x • Service availability limited to major metropolitan centers G.xWIMAX multi-service networks transport networks
Major cost components • G3.x • High network build costs (operator license, RF fees, equipment) • Wimax • Relatively low cost of „islands” – Internet Access • High network build cost– value added services
Fixed network - VDSL2 • Pros • high transmission speed • Triple Play services (incl. HDTV) • Cons • small-area coverage • problems with using of existing network • investment costs
Alternate solutions CATV networks • Fixed network • Shared bandwidth • Geographical restrictions • Competitive to ADSL/VDSL (WIMAX 802.16-2004) Digital TV • Satellite TV • Terrestrial TV (with HDTV, VoD)
What is next ? • Voice (communications, video, messaging) - in charge of mobile networks - fixed and mobile network convergence • Internet - via any transmission media • Multimedia applications - such as HDTV or VoD - in charge of fixed networks
Thank you for Your attention Paweł OlechCTOEXATEL S.A. ul. Perkuna 47 04-164 Warszawatel.: (22) 340 65 85pawel.olech@exatel.pl www.exatel.pl