SUBMITTED BY-SAHU
VASHEE CHAUHANJYOTI SHARMA
JYOTSNAIPSA BHATT
UNDER THE GUIDANCE OF ”Mr. Sachin Khandelwal(S.D.E)
PROJECT GUIDE:A.B SINGH SDE(RLU)
Broadband Flavors
Wired:Digital Subscriber
Lines (DSL)Cable ModemLeased Lines (T1)Fiber Optic CableBroadband Over
Powerline (BPL)
Wireless: Satellite Fixed Wireless Wi-Fi WiMAX
Digital Subscriber Line (DSL)
Uses plain old phone lines (POTS) Voice and data over the same lineSpeed 1.5-8 MbpsRequires location near central phone office or
switch (18,000 feet)Phone lines are everywhere but not all of them
are able to support DSLDirect one-on-one connection; bandwidth is not
shared with neighbors
Cable ModemFaster than DSLUses the same cable television lines that
deliver pictures and sound to your TV setShared connection; speeds can slow down
when many people in the same neighborhood are online
Easy to install
Broadband Over Powerline (BPL)
Delivered through power linesAlmost all homes and businesses are connected
to the power grid Still in early stages of development Potential interference with ham radio signals Speeds similar to DSL and cable
Satellite
Available most places including hard-to-reach rural areas
Slower than cable or DSL. WildBlue download speeds up to 1.5 Mbps and upload speeds up to 256Kbps.
Trees and heavy rain affects signalNeed unobstructed view of southern sky
Fiber Optic CableDelivered over fiber optic cablesVery high bandwidthHigh cost to build fiber networkLow maintenance
Wireless BroadbandFast relatively inexpensive deploymentDSL and cable speedsMany varieties
— Point-to-Point— Point-Multipoint— Mesh— Hot zones— Hot spots
Point-to-Point Fixed WirelessUses part of the radio spectrum to send and receive signals. Typically made up of on-the-ground antenna-to-antenna systems.
Requires indoor or outdoor antenna Coverage about 5 miles transmitter or access
point High bandwidthUsually licensedBackbone or transport layerLine of site
Point-to-Multipoint Fixed WirelessBroadband delivery to premiseConsumer or business gradeOne antenna to many sitesLine-of-sightLarge coverage areaLicensed or unlicensed
Mesh Network Wireless Nodes (radios)
Connect to userTransmit to aggregation point
Typically unlicensedFavor urban areas or hot zones
Aggregation Point
Mobile Wi-Fi
Wireless fidelityWi-Fi access points found at cafés, homes,
campuses, businesses.Access is limited to 50-300 feetCoverage limited by location and number of
transmittersRelatively cheap for providers to set-up End-user equipment cheap and easy to
install
Where to Wi-FiHotels, motels, inns, and resorts Airports Public libraries Cybercafes and fast food restaurants Courthouses City parks like NYC's Central Park Public recreation areas and rest stopsTruck stops RV parks
WiMAXWi-Fi on steroids Can cover a large area – 30 milesStill in early stages of development Can support ultra-broadband - a really big
pipe with lots of bandwidth and speed. Just what you would need to run your own real-time online video channel.
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