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Tecnologías Inalámbricas

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Tecnologías Inalámbricas *wireless technologies 2012 [email protected] IEEE 802.11 is a set of standards for implementing wireless local area network (WLAN) computer communication in the 2.4, 3.6 and 5 GHz frequency bands *standards Mobile Units Wind Farm Video Surveillance Distribution Distribution WiMAX Automation Automation Device Base Station (DA) (DA) Access Point (AP) Access Video Point Surveillance (AP) Power Station WiMAX Distribution Sub Base Station Automation Station Device (DA) Access Distribution Point Automation (AP) Device (DA) Control center Residentia l Area Commercial Smart Meter Area *Power system *history Data rate per Allowable 802.11 Freq. Bandwidth Release stream MIMO Modulation protocol (GHz) (MHz) (Mbit/s) streams — Jun 1997 2.4 20 1, 2 1 DSSS, FHSS 5 6, 9, 12, 18, 24, a Sep 1999 20 1 OFDM 3.7 36, 48, 54 b Sep 1999 2.4 20 5.5, 11 1 DSSS 6, 9, 12, 18, 24, g Jun 2003 2.4 20 1 OFDM, DSSS 36, 48, 54 7.2, 14.4, 21.7, 20 28.9, 43.3, 57.8, 65, 72.2 n Oct 2009 2.4/5 4 OFDM 15, 30, 45, 60, 40 90, 120, 135, 150 *history Wireless Technology Commercial Introduction Dates . WiFi has enjoyed a consistent lead in wireless technology . WiFi attracts a lot of silicon investment due to . Value to consumer . Large market-- global wireless & frequency standard . Relatively fast product cycles *history *802.11ac – Gigabit WiFi for 5GHz *802.11ad – Multi-gigabit WiFi for 60GHz *802.11af - WiFi for TV ‘White Spaces’ *Future WiFi´s ……. TVWS Overlay Gigabit PAN Free Spectrum Adaptive Mesh Backhaul + 3G & 4G Cheap Silicon Offload ============== Fixed Wireless Lots of Applications Broadband New Super Hotspots Applications Reliable Video over time Distribution Basic Hotspots Enterprise WiFi Home WiFi Increased performance over time *WiFi expansion 11af < 700 MHz 1 to 10 mbps 11n 2.4 GHz 20 to 100 mbps 11n, 11ac 5 GHz 50 to 1000 mbps 11ad 60 GHz 1 to 10 gbps *WiFi in 5 years Comparison of Mobile Internet Access methods Standard Family Primary Use Radio Tech Downlink (Mbit/s) Uplink (Mbit/s) Notes WiMAX update IEEE 802.16m expected to offer peak rates of at 128 (in 20MHz 56 (in 20MHz WiMAX 802.16 Mobile Internet MIMO-SOFDMA least 1 Gbit/s fixed bandwidth) bandwidth) speeds and 100Mbit/s to mobile users. LTE-Advanced update expected to offer OFDMA/MIMO/SC- 100 (in 20MHz 50 (in 20 MHz peak rates up to 1 LTE UMTS/4GSM General 4G FDMA bandwidth) bandwidth) Gbit/s fixed speeds and 100 Mb/s to mobile users. Mobile range 30km Mobile Internet 5.3 1.8 (18 miles) Flash-OFDM Flash-OFDM mobility up to Flash-OFDM 10.6 3.6 extended range 55 200mph (350km/h) 15.9 5.4 km (34 miles) HIPERMAN HIPERMAN Mobile Internet OFDM 56.9 Antenna, RF front end enhancements and minor protocol timer tweaks have 300 (using 4x4 configuration in 20MHz 802.11 helped deploy long Wi-Fi Mobile Internet OFDM/MIMO bandwidth) or 600 (using 4x4 configuration (11n) range P2P networks in 40MHz bandwidth) compromising on radial coverage, throughput and/or *summary spectra efficiency Uplink Standard Family Primary Use Radio Tech Downlink (Mbit/s) Notes (Mbit/s) Cell Radius: 3–12 km Speed: 250km/h HC- iBurst 802.20 Mobile Internet 95 36 Spectral Efficiency: 13 SDMA/TDD/MIMO bits/s/Hz/cell Spectrum Reuse Factor: "1" EDGE Evolution GSM Mobile Internet TDMA/FDD 1.6 0.5 3GPP Release 7 HSDPA widely deployed. Typical UMTS W-CDMA CDMA/FDD 0.384 0.384 downlink rates today 2 Mbit/s, HSDPA+HSUPA UMTS/3GSM General 3G 14.4 5.76 ~200 kbit/s uplink; HSPA+ HSPA+ CDMA/FDD/MIMO 56 22 downlink up to 56 Mbit/s. Reported speeds according to IPWireless using 16QAM UMTS-TDD UMTS/3GSM Mobile Internet CDMA/TDD 16 modulation similar to HSDPA+HSUPA Succeeded by EV-DO for data 1xRTT CDMA2000 Mobile phone CDMA 0.144 use, but still is used for voice and as a failover for EV-DO Rev B note: N is the number of 1.25 MHz chunks of spectrum EV-DO 1x Rev. 0 2.45 0.15 used. EV-DO is not designed for EV-DO 1x Rev.A CDMA2000 Mobile Internet CDMA/FDD 3.1 1.8 voice, and requires a fallback EV-DO Rev.B 4.9xN 1.8xN to 1xRTT when a voice call is placed or received. *summary *thanks… 2012 [email protected] www.andeswireless.com .
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