kinsinger_wifi_wimax_uwb

WiFi, WiMax, Ultra-Wideband, and More:

WiFi, WiMax, Ultra-Wideband, and More Matthew Kinsinger EMGT 520 April 11, 2011

What we will cover…:

What we will cover… History, details, and applications of: WiFi WiMax Ultrawideband An overview of other wireless technologies EnOcean Wireless HART Zigbee Cypress Envirosystems Wireless Bluetooth

Wireless Topologies:

Wireless Topologies Point to Point, dedicated pair Access point to Client, or Star MESH Hybrid MESH

Point to Point:

Point to Point Dedicated Pair, set communications path -one way or two way -often use directional antennas

STAR Topology:

STAR Topology One central unit can talk to multiple client units -one way or two way -often use omnidirectional antennas

MESH:

MESH Normally two way communication Multiple paths, redundant Almost always omnidirectional antennas

Hybrid MESH:

Hybrid MESH Uses a MESH topology between access points and repeaters Uses a STAR topology from each device on the MESH to the clients

WiFi:

WiFi Common terminology for wireless ethernet access spanning many different revisions and protocols Covers all 802.11 wireless standards 802.11a – 5 GHz – up to 54Mbit/s 802.11b – 2.4 GHz – up to 11 Mbit/s 802.11g – 2.4 GHz – up to 54 Mbit/s 802.11n – 2.4GHz and/or 5GHz – up to 450 Mbit/s

The History of WiFi:

The History of WiFi 1999- WiFi alliance formed 6 initial companies, now 350+ 2004- WiFi certified phones and TVs Also the year of WPA2 encryption 2009- 1 Billionth WiFi chipset

WiMax:

WiMax Commonly referred to as ‘4G’ or Broadband Internet 802.16 wireless standard “Worldwide Interoperability for Microwave Access” Range up to 30 miles Similar data rates to WiFi Less interference  better quality signal

The History of WiMax:

The History of WiMax Intel Mid 1990’s-idea/development 1999 Standard Developed 2001 Standard Officially Released 2005 802.16e, mobile broadband 802.16m – future modified standard, 1Gbit/s!!!

Ultra-Wideband (UWB):

Ultra-Wideband (UWB) Based on the WiMedia standard Limited Range – 30 feet High bandwidth Meant to replace traditional wires Audio/video connections Bluetooth?

The History of UWB:

The History of UWB 1901 – Marconi sends Morse code across the Atlantic Ocean 802.15 – wireless personal area networks 2006 Bluetooth integrates UWB Bluetooth and IEEE no longer collaborate on standards

Applications of WiFi, WiMax, UWB:

Applications of WiFi, WiMax, UWB WiFi – general data transfer Moderate bandwidth Scalable Decent range for small networks Very affordable and customizable

Applications of WiFi, WiMax, UWB:

Applications of WiFi, WiMax, UWB WiMax – similar to WiFi Moderate bandwidth, soon 1Gbit/s Decent range for city or area wide networks Still affordable Great for police, fire, EMS coverage “last mile” internet coverage

Applications of WiFi, WiMax, UWB:

Applications of WiFi, WiMax, UWB UWB – wire replacement High bandwidth, high quality Short range, personal uses Normally integrated in both devices from the start, not added on Between devices, not gateway or access point and device Think Bluetooth

Major Vendors:

Major Vendors Intel – WiFi and WiMax Cisco (Linksys) – WiFi Pulse~LINK, Time Domain - UWB

Other wireless technologies:

Other wireless technologies Zigbee 802.15.4 64,000 devices on one MESH network Utility meters, sensors Home or Building Automation 2.4 GHz globally, others by region

Other wireless technologies:

Other wireless technologies EnOcean Energy Harvesting – no batteries Home Automation 315 MHz and 868 MHz 50-150 feet max distance Acts like your garage door opener

Other wireless technologies:

Other wireless technologies Cypress Envirosystems wireless I/O products 300+ feet Proprietary wireless system -based on military standard Steam trap monitoring Wired and pneumatic thermostats Wireless gauge readers Battery Powered Hybrid MESH

Other wireless technologies:

Other wireless technologies Wireless HART Industry agreed upon standard Rosemount (Emerson) biggest player Industrial monitoring devices Battery powered, MESH Places where wiring impractical or expensive 802.15.4 modified (Zigbee)

What we learned:

What we learned WiFi – great for local networks and personal or corporate use WiMax – utility grade wireless coverage, 4G Ultra-Wideband – short distance wire replacement, Bluetooth Other common wireless technologies

References:

References Point to point http://www.cablemodeminfo.com/gifs/agere-map.gif Star Topology http://www.p4w.us/img/speedlan9000-st.gif http://www.l-com.com/product_images/detail/PWD_HK913-120.JPG MESH http://www.sensorsmag.com/files/sensor/nodes/2003/968/fig1.gif Hybrid http://www.cs.iastate.edu/~jxiawang/images/WMNArchitecture.jpg WiFi http://www.proxim.com/learn/library/whitepapers/80211a.pdf http://www.wi-fi.org/discover_and_learn.php http://www.wi-fi.org/organization.php WiMax http://www.wimax.com/general/what-is-wimax http://quantumwimax.com/index.php?page=History-of-Wimax Ultra-Wideband (UWB) http://www.intel.com/technology/comms/uwb/ http://www.palminfocenter.com/news/8497/bluetooth-adopts-ultrawideband-technology/ http://www.informit.com/articles/article.aspx?p=433381&seqNum=2 Zigbee http://www.zigbee.org/Specifications/ZigBee/Overview.aspx EnOcean http://www.illumra.com/Products/Wireless_Light_Switches/ Cypress Envirosystems http://www.cypressenvirosystems.com/about/faq/#wireless Wireless HART http://www.hartcomm.org/protocol/wihart/wireless_technology.html