WiMax technology, a reshuffle for Telecom operators?
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1 WiMax technology, a reshuffle for Telecom operators? La comparazione dei costi e delle performace Milano, 1 giugno 2005 FOR DISCUSSION PURPOSES ONLY: ANY OTHER USE OF THIS PRESENTATION - INCLUDING REPRODUCTION FOR PURPOSES OTHER THAN NOTED ABOVE, MODIFICATION OR DISTRIBUTION - WITHOUT THE PRIOR WRITTEN PERMISSION OF CEFRIEL IS PROHIBITED
2 Reference Network Architectures M ilano, 1st June
3 Broadband Wired Access Technologies xdsl Solutions xdsl HDSL (T1) HDSL (E1) SDSL (SHDSL) ADSL (RADSL) ADSL Lite ADSL2 ADSL2+ VDSL Mode Symm. Symm. Symm. Down Up Down Up Down Up Down Up Down Up Data Rate kbit/s to 2312 kbit/s 1.5 to 8 16 to 800 kbit/s kbit/s to to 6 Notes 1,2,3 pairs 1,2,3 pairs rate adaptive improved distance double bandwidth needs fibre Max 1,5 Km 56 Kbit/s modem 25 Mbyte file download time ISDN 128 Kbit/s HDSL 2 ADSL 8 VDSL 52 1 h 26 min 2 min 25 sec 3.8 sec Data Rate VDSL ADSL ISDN Dist - 3 -
4 Gigabit Ethernet ACCESS SECTOR METROPOLITAN BACKBONE Gigabit Ethernet 10/100 Ethernet per user K 1 WDM Switch Router Link to the Service Center Services Center Building Switch 1 Building Switch N - 4 -
5 WiMAX Performance Bandwidth G Ts [µsec] QPSK 1/2 QPSK 3/4 16 QAM 1/2 16 QAM 3/4 64 QAM 2/3 64 QAM 3/4 1/4 80,00 2,40 3,60 4,80 7,20 9,60 10,80 3,5 MHz 1/8 72,00 2,67 4,00 5,33 8,00 10,67 12,00 1/16 68,00 2,82 4,24 5,65 8,47 11,29 12,71 Licensed 1/32 66,00 2,91 4,36 5,82 8,73 11,64 13,09 bands 7 MHz 1/4 40,00 4,80 7,20 9,60 14,40 19,20 21,60 1/8 36,00 5,33 8,00 10,67 16,00 21,33 24,00 1/16 34,00 5,65 8,47 11,29 16,94 22,59 25,41 1/32 33,00 5,82 8,73 11,64 17,45 23,27 26,18 1/4 27,78 6,91 10,37 13,82 20,74 27,65 31,10 Licensed and license-exempt bands 10,0 MHz 20,0 MHz 1/8 25,00 7,68 11,52 15,36 23,04 30,72 34,56 1/16 23,61 8,13 12,20 16,26 24,40 32,53 36,59 1/32 22,92 8,38 12,57 16,76 25,13 33,51 37,70 1/4 13,89 13,82 20,74 27,65 41,47 55,30 62,21 1/8 12,50 15,36 23,04 30,72 46,08 61,44 69,12 1/16 11,81 16,26 24,40 32,53 48,79 65,05 73,19-5 -
6 Number of Channels per License Canalizzazioni [MHz] Bit rate max teorico/canale [Mb/s] Banda per licenza [MHz] 3, ,75 6, ,5 13, , , ,
7 Hypotheses Services provided IPbrowsing 15 GB/Y link loaded up to 70% videoconference minutes/y bit rate of 200 kb/s GOS of 1% VoIP minutes/y Coded bit rate of 64 kb/s GOS dell 1% VoD 24 movies/y GOS del 2% An increasing coverage up to get to at the 7 th year at the 90% of the built-up areas at a national level (i.e. 98% of the customer premises) The penetration for all identified services fixed at 36% of the covered end users Timeframe of 7 years Frequencies 3,4 3,6 GHz - 7 -
8 ADSL GiBE Results ADSL Capacità (4) Unità di misura Capex (5) [M!] Unità Costi operativi (7) Installate (6) [M!] ADSL_WiFi 1 Linee 1.072, ,73 Linea unbundling 1 Linee 0, ,06 DSLAM/Router Linee 155, ,40 DSLAM Link 858 Mb/s 0, ,31 Edge Router Mb/s 0,00 5 0,00 GiBE Capacità Unità di misura Capex (5) [M!] Unità Costi operativi (7) Installate (6) [M!] GbE_WiFi 1 Linee 613, ,13 Switch 1 16 Linee 95, ,33 Switch Linee 2, ,03 Switch 2 Link 63 Mb/s 0, ,19 Router Mb/s 0, ,16 Edge Router Mb/s 0,00 5 0,00 4 = capacity of the installed equipment 5 = Capex = sum of the investments up to the 7 th year 6 = # of the equipment installed at the 7 th year 7 = OPEX related only to the 7 th year - 8 -
9 WiMAX Results WiMAX Capacità (8) Unità di misura Capex (5) [M!] Unità Costi operativi (7) Installate (6) [M!] WiMax_WiFi 1 Linee 1.226, ,26 WiMax BS 67 Mb/s 816, ,84 WiMAX BS Link 125 Mb/s 0, ,80 Router Mb/s 0, ,16 Edge Router Mb/s 0,00 5 0,00 Base Station monosectorized (max bit rate of 26 Mb/s) bisectorized (max bit rate of 52 Mb/s) quadrisectorized (max bit rate of 104 Mb/s) 8 = weighted mean for the installed equipment with capacity of 26, 52 o 104 Mb/s - 9 -
10 10% IPbrowsing: 36 /month for 12 months/y Videoconference: 0,02 /minute VoIP: free service VoD: 2 /movie! Mld 7,0 6,0 5,0 4,0 3,0 GibE/VdBdcst_SI GibE/VdBdcst_NO WiMAX/VdBdcst_NO ADSL/VdBdcst_SI ADSL/VdBdcst_NO 2,0 1,0 0,0-1, Anni
11 Final Remarks Interesting solution for the urban areas (high density of potential customers) with optimized cell sizes for IPbrowsing, videoconference, VoIP, VoD (symmetric asymmetric links) Interesting solution for remote areas, unlikely served with wired technologies Interesting solution for those areas where no excavation permissions are provided to protect the environment, historical finds Interesting solution to extend the broadband coverage in those areas with low penetration and with limited traffic the used frequencies don t require the LoS large cell sizes High modularity and scalability to fulfil the progressive increasing number of customers Fast deployment Lower investment risks Interoperability ensured by the WiMAX Forum It can be used for the backhaul link of the cellular systems Performance strongly related to the channel bandwidth IEEE Std e mobility solution
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