TYPES OF BROADBAND. BROADBAND FLAVORS Wired: Digital Subscriber Lines (DSL) Cable Modem Leased Lines (T1) Fiber Optic Cable Broadband Over Powerline (BPL)

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Presentation transcript:

TYPES OF BROADBAND

BROADBAND FLAVORS Wired: Digital Subscriber Lines (DSL) Cable Modem Leased Lines (T1) Fiber Optic Cable Broadband Over Powerline (BPL) Wireless: Satellite Fixed Wireless Wi-Fi WiMAX Cell (G3,G4)

DIGITAL SUBSCRIBER LINE (DSL) Uses plain old phone lines (POTS) Voice and data over the same line Speed Mbps Requires location near central phone office or switch (18,000 feet) Phone lines are everywhere but not all of them are able to support DSL Direct one-on-one connection; bandwidth is not shared with neighbors

CABLE MODEM Faster than DSL Uses the same cable television lines that deliver pictures and sound to your TV set Shared connection – speeds can slow down when many people in the same neighborhood are online Easy to install

BROADBAND OVER POWERLINE (BPL) Delivered through power lines Almost all homes and businesses are connected to the power grid Still in early stages of development Potential interference with 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 256 Kbps. Trees and heavy rain affects signal Need unobstructed view of southern sky Graphic from WildBlue.com

FIBER OPTIC CABLE Delivered over fiber optic cables Very high bandwidth High cost to build fiber network Low maintenance

WIRELESS BROADBAND Fast relatively inexpensive deployment DSL and cable speeds Many varieties — Point-to-Point — Point-Multipoint — Mesh — Hot zones — Hot spots

POINT-TO-POINT FIXED WIRELESS Uses 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 bandwidth Usually licensed Backbone or transport layer Line of site

FIXED WIRELESS

POINT-TO-MULTIPOINT FIXED WIRELESS Broadband delivery to premise Consumer or business grade One antenna to many sites Line-of-sight Large coverage area Licensed or unlicensed

MESH NETWORK WIRELESS Nodes (radios) o Connect to user o Transmit to aggregation point Typically unlicensed Favor urban areas or hot zones Aggregation Point

MOBILE WI-FI Wireless fidelity Wi-Fi access points found at cafés, homes, campuses, businesses. Access is limited to feet Coverage limited by location and number of transmitters Relatively cheap for providers to set-up End-user equipment cheap and easy to install

WHERE TO FIND WI-FI Hotels, 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 stops Truck stops RV parks

WIMAX Wi-Fi on steroids Can cover a large area 30 miles Still in early stages of development Can support ultra-broadband, a large pipe with lots of bandwidth and speed – just what you would need to run your own real-time online video channel.

How fast you want to go Residential or business use Pricing of the provider HOW MUCH BROADBAND COSTS DEPENDS ON…

Southern Rural Development Center FOR MORE INFORMATION: ONNECTING C OMMUNITIES. INFO