Purdue CS 53600 - Broadband over Power lines - D2157262

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Purdue CS 53600 - Broadband over Power lines

Course Cs 53600- Data Communication and Computer Networks

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Broadband over Power linesBroadband over power lines (BPL)How Stuff Works?How Stuff Connected?The futureComments on the article & the topicHow Stuff Messed Up?Broadband over Power linesbyJayeshChi BunMummoorthyCS 536 – October 22, 2004Broadband over power lines (BPL)FCC approved last week: power utilities free to carry data on electrical wires to provide broadband servicesBenefitsBetter coverage than phone and cable (e.g. small towns and rural areas)Faster deploymentMay lower the priceChallengesEM interference to various radio signalsSystem to monitor interference,Restrict service in areas where could affect public safetyHigh-voltage and fluctuation can corrupt dataClean data stream if power down to 7000VHow Stuff Works?MediumFibers / Phone lines (to skip disruptive high-voltage lines)Medium voltage wiresPHYRF (bundled w/ AC)4.3MHz – 20.9MHz84 carriersOFDMMACCSMA/CAvirtual carrier sensecontention resolutionEncoding: DQPSKError detection/correction: FEC, ARQHow Stuff Connected?How to plug in?Wireless router on polesSpecial adaptor/modem plugged into electrical outletsData ratesHomeplug Powerline Alliance: 14MbpsAmperion: currently 20Mbps, 100Mbps next yearCVEC: claims 256Mbps bidirectionallyPricesAmperion: $19/moHome n/w device: $25Wall-plugged Ethernet BridgeThe futureHome networkEasily create a network via electric outletsSmart electrical grids and devicesRead electrical usageDiagnose maintenance problems and feed backTraffic lights, surveillance cams networked instantlyControl power useComments on the article & the topicProsImpact of BPL to broadband providersProvided estimated cost of servicesProposed idea of smart electrical devicesConsNo technical details about data transmission mechanism over power lineNo discussion of safety and securityOur Opinions+: Alternative to existing network infrastructure+: Opportunity for smart devices -: More trials and testing needed -: Interference problems? -: More at the hands of nature: Rain, Snow, .. -: New medium: Properties of Aluminum wires??? -: Will it survive the opposition: ARRL(163,000), FEMA, DERA & many more …How Stuff Messed Up?Short wave/CB: 5.9MHz – 27.41MhzAffected FEMA (emergency), ARRL (relay

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