Affordable fibre access network for developing countries
21 Feb 1999-Vol. 1, pp 47-49
TL;DR: In the near future, more telephones are likely to be provided using fiber access network in India than anywhere else as discussed by the authors, this paper presents why this is happening and describes the access solution of operator's choice.
Abstract: In the near future, more telephones are likely to be provided using fiber access network in India than anywhere else This paper presents why this is happening and describes the access solution of operator's choice
Citations
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27 Sep 2013
TL;DR: A dynamic reconfiguration algorithm for a hybrid fiber wireless network, which takes advantage of dynamic reconfigurement in WDM based optical networks to provide bandwidth on the fly to solve the Last mile problem of WDM networks.
Abstract: This paper describes a dynamic reconfiguration algorithm for a hybrid fiber wireless network, which takes advantage of dynamic reconfiguration in WDM based optical networks to provide bandwidth on the fly. The WDM technique for optical networks allows network operators to extend the existing capacity of passive optical networks manifolds. However presently, WDM networks were used mostly in long haul backbone networks and recently have been put to use in metropolitan networks (MAN). But till now not much work has been done on use of WDM networks in MAN. We use wireless technology to solve the Last mile problem of WDM networks. Wireless networks on the other hand are always constrained by need of bandwidth and we use WDM based optical networks to provide that. So both network technologies complement each other. Our proposed approach allows providing bandwidth on demand. It also allows for service differentiation by service providers, and sharing of infrastructure by several service providers.
52 citations
Cites background from "Affordable fibre access network for..."
...reconfiguration of optical network provides an elegant way to deal with the uncertainty in capacity demand, allowing for efficient allocation of the network resources by adaptively adjusting to the offered load [3]....
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23 Apr 2006
TL;DR: A dynamic reconfiguration algorithm for a hybrid fiber wireless network, which takes advantage of dynamic reconfigurement in WDM based optical networks to provide bandwidth on the fly to solve the Last mile problem of WDM networks.
Abstract: This paper describes a dynamic reconfiguration algorithm for a hybrid fiber wireless network, which takes advantage of dynamic reconfiguration in WDM based optical networks to provide bandwidth on the fly. The WDM technique for optical networks allows network operators to extend the existing capacity of passive optical networks manifolds. However presently, WDM networks were used mostly in long haul backbone networks and recently have been put to use in metropolitan networks (MAN). But till now not much work has been done on use of WDM networks in MAN. We use wireless technology to solve the Last mile problem of WDM networks. Wireless networks on the other hand are always constrained by need of bandwidth and we use WDM based optical networks to provide that. So both network technologies complement each other. Our proposed approach allows providing bandwidth on demand. It also allows for service differentiation by service providers, and sharing of infrastructure by several service providers.
19 citations
Cites background from "Affordable fibre access network for..."
...Laying the fiber till end user’s access point is a costly proposition and is justified only if the user requires huge bandwidth [5]....
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Proceedings Article•
03 Mar 2003
TL;DR: This model captures the essential spatial characteristics of optical ring networks by representing its components as a family of random object generated by a spatial Poisson process and gives bounds on the cost of feeder rings and the exact cost function of distribution subnets as functional of the intensities of Poisson processes.
Abstract: We propose a new method for the economic evaluation of hybrid xed wireless/optical access networks. These networks are coste ective solutions in countries with a limited infrastructure. The evaluation of the cost function of such networks requires a detailed description of their spatial features that is usually not available and unsuitable for economic analysis. Our model captures the essential spatial characteristics of optical ring networks by representing its components as a family of random object generated by a spatial Poisson process. We give bounds on the cost of feeder rings and the exact cost function of distribution subnetworks as functional of the intensities of Poisson processes.
2 citations
Cites background from "Affordable fibre access network for..."
...This type of PON-fed hybrid optical/wireless network is an attractive alternative to cabled networks when providing services to a low density residential area, and perhaps most significant of all, developing countries [4]....
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28 Apr 1999
TL;DR: The issues involved in use of Fiber in the Access Network are examined and solutions are suggested which are likely to make it the technology of choice for new operators.
Abstract: Copper based wired local loop has served us well for over 100 years. However much we may decry the copper for its bottlenecks today, it has served us so long due to the following: (1) it is a passive network, which does not fail unless cable is cut; (2) it carries power for subscriber terminals; (3) it carries voice signals both ways; (4) 56 kbps data can be carried in 4 kHz copper loop; (5) n-isdn, HDSL, ADSL, VDSL is enabling tens of Mbps data to be carried on the copper loop. It is such a loop that one wishes to replace with Fiber. How does fiber handle these issues? While fiber finds it difficult to provide one to one replacement of copper loop, and is still struggling to make a mark in the Access Network of developed world, a certain kind of Fiber Access Networks is suddenly becoming the way of deploying new telecom networks in developing countries. Fiber in the Loop today provides the most cost-effective solution for new deployment in urban areas; most Basic Services Operators in India plan to use this in major way. It is likely that in the next three to four years, more Fiber in Access Network will be deployed in India than in any other country in the world. This paper examines the issues involved in use of Fiber in the Access Network and suggest solutions which are likely to make it the technology of choice for new operators.© (1999) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
1 citations
References
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TL;DR: The telecom scenario, the new technologies, the Indian products based on these technologies, and the cost reductions they promise are looked at, which promise to more than halve the investment required.
Abstract: It is not viable to expand the telecom network in India substantially at the prevalent level of per-line investment. However, systems based on new technologies, many developed in India, promise to more than halve the investment required. This article looks at the telecom scenario, the new technologies, the Indian products based on these technologies, and the cost reductions they promise. The provision of widespread Internet service with low access tariff is an important aspect of the new approach.
39 citations
TL;DR: This article reports on the drivers, key issues, and top-level view of key requirements as agreed on by the seven major telcos and ten leading suppliers involved until June 1996.
Abstract: An international collaboration aimed at kick-starting investment in broadband access networks is discussed. This activity has focused on producing requirements and design solutions for a low-cost full services access network which is suitable for both home and business service delivery, starting from the telco position where enormous investment has already been made in copper pair technology. This article reports on the drivers, key issues, and top-level view of key requirements as agreed on by the seven major telcos and ten leading suppliers involved until June 1996.
31 citations
TL;DR: The line costs and payback periods of different access network technologies for infrastructure broadband upgrades are examined, subject to variation in parameters like the existing infrastructure, the broadband take rate, civil work costs, revenues, and rollout year.
Abstract: This article presents a techno-economic assessment of the evolution of the access network segment toward broadband data service delivery, including in-depth sensitivity analysis of key issues faced by the infrastructure providers. The line costs and payback periods of different access network technologies for infrastructure broadband upgrades are examined, subject to variation in parameters like the existing infrastructure, the broadband take rate, civil work costs, revenues, and rollout year. The work should enable establishment of guidelines for broadband infrastructure upgrade strategies.
22 citations
28 Apr 1999
TL;DR: The issues involved in use of Fiber in the Access Network are examined and solutions are suggested which are likely to make it the technology of choice for new operators.
Abstract: Copper based wired local loop has served us well for over 100 years. However much we may decry the copper for its bottlenecks today, it has served us so long due to the following: (1) it is a passive network, which does not fail unless cable is cut; (2) it carries power for subscriber terminals; (3) it carries voice signals both ways; (4) 56 kbps data can be carried in 4 kHz copper loop; (5) n-isdn, HDSL, ADSL, VDSL is enabling tens of Mbps data to be carried on the copper loop. It is such a loop that one wishes to replace with Fiber. How does fiber handle these issues? While fiber finds it difficult to provide one to one replacement of copper loop, and is still struggling to make a mark in the Access Network of developed world, a certain kind of Fiber Access Networks is suddenly becoming the way of deploying new telecom networks in developing countries. Fiber in the Loop today provides the most cost-effective solution for new deployment in urban areas; most Basic Services Operators in India plan to use this in major way. It is likely that in the next three to four years, more Fiber in Access Network will be deployed in India than in any other country in the world. This paper examines the issues involved in use of Fiber in the Access Network and suggest solutions which are likely to make it the technology of choice for new operators.© (1999) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
1 citations