Power line telecommunications option in rural KwaZulu-Natal

Abstract

The power line can be used for creating an in-house Absfimf-Siice its introduction b the enly 1990'r, use of the network or for bridging the last mile between the nerd, not just a wan% far most hamrowers Ethemet and withaul the necessity of additional cabling and additional rnnkiog able to each connection. Network odes must be identir~d md during eaoshoction of ~hames, access point to this network. The electrical dishibution Considerable renav~tioo is required to retrofit older homes or power grid could turn Out to be an idea' Io cop to plsee additiand nodes. Wireless networks provide nodes with the existing standard C~"b.tion links based On everywhere, They we Ideal far hmd-hdd or bnttery-aperated Copper w k g . Some of the applications that can be devices, but the addition af RF ranversion hardware makes implemented on this medium could be the Intemet Web this 10 inherently costlier solution. Addiibmlly, wireless browsing (always on), lntemet telephony (Voice over IP) networks suner from security Concerns and COmPek and security applications. As we can see the new power line stsndnrds.communications system will have multi-media capabilities.Internot has exploded. Access to the Intelllet is fssf becombg a transformer station and the access point of the end. " phone l i e solutions provide f-% r&i.ble senice but require interface (wall outlet). b c h wall outlet cm be , , sed as an three major factors in any ralutian: ensmf-use, low cost, and ubiquitous node avnilnbility. Power line networking delivers dl three. Sa, wbiie it is tme that pawer l i e networking facer some technical hurdles, it remains I compelling choice. very largest networks. On a global basis, there is a far greater capacity available for PLC usage via the elemicity supply grid t b there are telephone lines. power line is ~articularly suitable for Internet access, telephony, building . .automation, security applications, people care and special electricity supply "hiin paper itarts by describing the power lie PI 1 communication medium and then the Drobiems encountered in the power line communication chsnoel b terms of frequency response aad noise characteristics. A t r~l m i s~i o n technique (OFDM) that avoids power b e noise and uses the common modulation formats is also explained.Finally, haUic projections are rlso estimated baaed on Brady's me"remeot* 0-7083-8605-1 / $17.00 2004 IEEE

Hybrid hydrogen fuel cell and photo-voltaic system for remote telecommunications applications

“…Using the existing power grid has been proposed as a means of facilitating such communications [1], however if there is not grid in place, then this will clearly not be feasible. Using some form of Photovoltaic or wind generation is also possible, however this is clearly weather dependent, and also limited potentially by the cost and size constraints of a typical mast.…”