By Alcibiade Zaganiaris, Kjell Stordahl, Borgar Tørre Olsen, Sotirios Markatos (auth.), Leif Aarthun Ims (eds.)
The entry community is anticipated to be one of many significant battlegrounds of telecommunications community operators, for the reason that enhancements of the prevailing narrowband entry community stands out as the severe think about providing multimedia broadband providers in a aggressive industry. the long run broadband entry community structure has to be versatile adequate to successfully aid the supply of a whole set of broadband and narrowband companies with a variety of skill calls for. quite a lot of broadband entry applied sciences can be found. in addition, the major concerns within the upgrading of the very expense delicate entry community are monetary in addition to technological, either for incumbent and new entrant operators. therefore, so one can establish minimum-risk introductory techniques the industrial viability of entry community broadband enhancements should be rigorously assessed. even if, regardless of the yes desire for techno-economic reviews, only a few books were released during this box. one of many purposes should be that broadband entry community upgrading simply very lately received huge popularity as a key problem for broadband supply. Secondly, this sort of strategic paintings and those experiences are usually thought of really delicate by way of operators, and hence either effects and methodologies should not frequently on hand. Thirdly, the paintings pronounced during this ebook in lots of respects used to be a big pioneering attempt, which rather ambitiously geared toward modelling the entire life-cycle charges and profit streams of entry community enhancements, in place of a number of different efforts, which regularly are constrained to natural funding expense comparisons.
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Extra resources for Broadband Access Networks: Introduction Strategies and Techno-economic Evaluation
0002. 73 % respectively. The fit is as for the previous models, very good. 4). 1) and dividing the expression for the derivative by the factor yip. 7) 35 36 Demand for new services The price elasticities show the relative change in demand when the price changes. 9) The formulas reflect the relative change in demand in percentage, when the tariff changes with one ECU as a function of the tariff. 6 UNCERTAINITY IN THE RESULTS In the first round of the Delphi survey 58 questionnaires were returned - in the second round 50.
10 0- 8 ~E .... c 0)- CI ----I 0) _CtI ctI . I ~ -- ~ ,-~ ~~- . -. :. ~[~r~l'-'7" - - - - - ~I-",,-.! :-" ,'~ 2 O~~_ 200 Interactive TV i - Electronic newspaper -, 600 "! " ~ , l r. . . ! . ; 1000 1400 ,!...... R" .. 6 Demand curves for a set of applications, II. 25 $US. 2 Long term forecasts and saturation of applications The experts were asked to indicate long term forecasts for each application. 9). For VOD and videophony the forecasts are significantly higher, while the forecasts are lower for the other applications.
C C/) Q) «I~ . c Q)- 5 . ) .. ,'. 4-~>-··- .. ---. ___ . 11 Demand curves for ISDN, wideband and broadband connections as a function of annual subscription tariff. Demand and forecasts for bearer services The demand curves are also used to make forecasts. 11 shows a static demand curve where the demand only is dependent on the users annual tariff. In chapter 8 a methodology for forecasting network component costs is presented. The component costs decrease as a function of time due to mass production.