TAILIEUCHUNG - Wireless địa phương vòng - lý thuyết và ứng dụng P1

During the last few years, the telecommunications sector has progressed remarkably thanks to the numerous technological advances occurring in the field. The demand for communication services has also increased explosively worldwide creating or imposing tougher capacity requirements on the telecommunication infrastructure. In developing regions, this demand reflects the great need for the basic telephone services, . the Plain Old Telephone Service (POTS), whereas in developed regions it applies to. | Wireless Local Loops Theory and Applications Peter Stavroulakis Copyright 2001 John Wiley Sons Ltd ISBNs 0 471 49X46 7 Hardback 0-470-84187-7 Electronic Part I Theoretical Aspects Wireless Local Loops Theory and Applications Peter Stavroulakis Copyright 2001 John Wiley Sons Ltd ISBNs L71 PLS 7 Hardback 70-84187-7 Electronic 1 Introduction to WLL Digital Service Technologies loannis S. Barbounakis and Peter Stavroulakis Background During the last few years the telecommunications sector has progressed remarkably thanks to the numerous technological advances occurring in the field. The demand for communication services has also increased explosively worldwide creating or imposing tougher capacity requirements on the telecommunication infrastructure. In developing regions this demand reflects the great need for the basic telephone services . the Plain Old Telephone Service POTS whereas in developed regions it applies to high-rate data and multimedia services at home and or office. In addition to these recently established conditions the liberalization of the telecommunication sector taking place in our days has unexceptionably driven innovation on the telecommunication infrastructure. It is only the local loop segment that has left unchanged despite all these technological innovations. Lately however it has attracted the attention of telecommunication carriers since it proves to be the bottleneck in their network expansion. Consequently more efficient transmission techniques ISDN DSL improving the capacity of the copper wires or alternative physical media such as fibre coaxial cable and wireless terrestrial or satellite links have started to be deployed more and more. It is not only the rapid penetration which is necessary in developing regions but also the need for higher capacity in developed regions that have made other physical media apart from our common copper wiring viable solutions in the local loop arena. Today s copper wiring is mostly limited to a .

• Kĩ thuật Viễn thông
• Lý thuyết Wireless
• ứng dụng wireless
• dịch vụ truyền thông
• hạ tầng viễn thông
• vòng lặp không dây
• Bài giảng Lý thuyết mạng máy tính
• Lý thuyết mạng máy tính
• Mạng máy tính
• Wireless và mobile network
• Cellular internet access
• Mạng wireless
• tài liệu MPG
• lý thuyết mạch
• điện tử viễn thông
• tự học viện thông
• lý thuyết viễn thông
• Quản trị mạng máy tính
• Mobile network