The Telco's Goldmine - 50 Mb/s to the General Public over the Local Telephone Lines
نویسنده
چکیده
This chapter describes a new scenario for how to transform the existing telephone access network into a real broadband network. The objective is to introduce a low-cost network evolution scenario, which makes maximal use of the huge investments associated with this kind of network. The existing network is sub-divided into a small cell network, each covering an area with an approximate radius of 1 kilometre. Inverse multiplexing of xDSL systems is used to aggregate bandwidth in the range of 100 to 1000 Mb/s between nodes in the network. VDSL modems able to carry about 25-50 Mb/s, are used on the last section from the node to the customer premises. These modems provide all households within each geographical cell with real broadband access to a large common bandwidth. Two detailed case studies have been carried out in order to see whether the proposed scenario can be implemented in the network, and if it would be economical justifiable compared to a similar network based upon optical cables. The FTTC architecture (FSAN approach) was chosen. The results from these calculations showed that saving in the range of respectively 50 and 90 per cent can be expected by using inverse multiplexing of VDSL over telephone cables instead of installing an optical network.
منابع مشابه
Voice over IP in the Local Exchange: A Case Study
There have been a small number of cost studies of Voice over IP (VoIP) in the academic literature. Generally, they have been for abstract networks, have not been focused on the public switched telephone network, or they have not included the operating costs. This paper presents the operating cost portion of our ongoing research project comparing circuit-switched and IP network costs for an exis...
متن کاملAssessment of rural satisfaction with local organizations services In ILAM province
Today in democratic governments, accountability to people and obtain the consent of them form local services is important for people's participation in local governance and consequently it is important to organizational success. In rural areas, wide range of services offered by local public organizations. Rural Satisfaction with the quality of their services, is one of the public performance in...
متن کاملStudy of Cytotoxic Activity of Daphne Mucronata Royle Grown in Iran
Background: Plants are a proven source of anti-tumor compounds and it is reasonable to assume that many such substances remain to be discovered. In Iranian folk medicine, ethanolic extract of the aerial parts of Daphne mucronata Royle is used against various skin disorders.Objective: In order to evaluate anti-neoplastic plants, we initiated a cytotoxic study using Daphne mucronata that is indig...
متن کاملApoptosis Induced by 13-S-hydroxyoctadecadienoic acid in the Breast Cancer Cell Lines, MCF-7 and MDA-MB-231
متن کامل
Growth Inhibitory Impact of Peganum harmala L. on Two Breast Cancer Cell Lines
Background: ß-carbolines, harmaline and harmine, are the major alkaloids presenting in the seeds of the Peganum harmala L. These alkaloids are known as herbal active principals with potential use in pharmaceutical and medicine. Objectives: To assess the growth inhibitory effect of phyto-alkaloids, harmaline and harmine, on cancer cell lines. Method...
متن کامل