Applications of MIMO Spatial multiplexing techniques makes the r eceivers eceivers very ver y Applications of MIMO :Applications complex, and therefore it is typically combined with Orthogonal frequency-division frequency-division multiplexing (OFDM) where the problems created by multi-path channel are handled efficiently. efficiently. The IEEE 802.16e standard incorporates MIMO-OFDMA. The IEEE 802.11n standard, which is expected to be finalized soon, recommends MIMO-OFDM. MIMO-OFDM. MIMO is also planned to be used in Mobile radio telephone standards such as recent 3GPP and 3GPP2 standards. In 3GPP, High-Speed Packet Access plus (HSPA+) and Long Term Evolution (LTE) standards take MIMO into account. Moreover, to fully support cellular environments MIMO research consortia including IST-MASCOT propose to develop advan ced MIMO techniques, i.e., multi-user MIMO (MU-MIMO) MIMO Enables the Digital Home MIMO delivers whole home coverage with the speed and reliability to stream multimedia applications MIMO can reliably connect cabled video devices, computer networking devices, broadband connections, phone lines, music, storage devices, etc. MIMO is interoperable and can leverage the installed based of 802.11 wireless wireless that is already a lready deployed: deployed: computers, PDAs, handheld gaming devices, cameras, VoIP Phones, etc. MIMO Wireless Enables New Applications and Business Models VoIP and Other New Easy to Use Applications Guaranteed Whole Home Coverage Enables New Cable-Free CE Device Markets Enables Enhanced Cable MSO Business Models (reduced truck rolls) Enables RBOCs& On-Line Movie Co¶s To Offer Streaming Video Services Enables New Mobile Hotspot Video and Multimedia Services MIMO Radio Hassle-Free PC Networking Self Install Plasma, Cable & DSL Picture & Video Sharing Internet Based Video Streaming Enabling Technology New Applications New Markets
Applications WLAN ± WiFi 802.11n Mesh Networks (e.g., MuniWireless) WMAN ± WiMAX 802.16e 4G RFID Digital HomeCEWIT - Center of Excellence in Wireless and Information Technology High Throughput WiFi - 802.11n General Using the space dimension (MIMO) to boost data rates up to 600 Mbps through multiple antennas and signal processing Target applications applications include: large files backup, HD streams, online interactive gaming, home entertainment, entertainment, etc. Backwards compatible with 802.11a/b/g CEWIT - Center of Excellence in Wireless and Information Technology High Throughput WiFi - 802.11n Technology Overview 2.4 GHz and 5.8 GHz unlicensed bands Channel bandwidth of 20 MHz and 40 MHz Up to 4 spatial streams (e.g., 4x4) Current product offerings offering s (pre-N) use only 2 spatial streams with 3Tx / 3Rx in the AP and 2Tx / 3Rx in the mobile supporting up to 300 Mbps Spatial diversity, diversity, spatial multiplexing, beamforming beamforming Enhancements in both PHY and MAC (e.g., frame aggregation, block-ACK, block-ACK, space-time coding, power save, green field mode, etc.) CEWIT - Center of Excellence in Wireless and Information Technology MIMO in MuniWireless High capacity (MIMO) cross-links cross-link s WiFi access CEWIT - Center of Excellence in Wireless and Information Technology MIMO in Ad-Hoc Network single-hop comm. multi-hop comm. A collection collection of of wireless mobile nodes that self-configure self-configure to form a network (data rate + range) No fixed infrastructure infra structure is required requir ed Any two nodes can communicate communicat e with each other High capacity link are useful for scalability and multimedia services CEWIT - Center of Excellence in Wireless and Information Technology
Mobile-WiMAX Mobile-WiMAX 802.16e Technology Overview Nonlineofsite,upto4-6mbpsperuserfo Nonlineofsite,upto4-6mbpsperuserforafewkm rafewkm 2.5 GHz (US) and 3.5 GHz licensed bands Channel bandwidth band width from 1.25 to 20 MHz QPSK, 16 QAM and 64 QAM modulation OFDMA access (orthogonal uplink) TDD for asymmetric traffic and flexible BW allocation allocati on Advanced Antenna Systems Systems (AAS): Beamforming, Beamforming, spatial diversity, diversity, spatial multiplexing using MIMO (2x2) CEWIT - Center of Excellence in Wireless and Information Technology MIMO in WiMAX A 2x2 MIMO Configuration in 802.16e AP Downlink AP mobile 2 mobile 1 mobile Uplink (collaborative) . Increasing spectral efficiency (bps/Hz) Downlink ± higher capacity and user peak rates Uplink ± h igher capacity only CEWIT - Center of Excellence in Wireless and Information Technology MIMO in WiMAX (cont.) OFDMA TDD Frame Structure Time/Frequency Time/Frequency Multi-User Diversity CEWIT - Center of Excellence in Wireless and Information Technology MIMO in WiMAX (cont.) Layer 3 Throughput Comparison Comparison . CEWIT - Center of Excellence in Wireless and Information Technology MIMO in RFID Increasing read reliability using space diversity Increasing read range and read throughput Full channel information at the reader comes for free (tag backscatter) CEWIT - Center of Excellence in Wireless and Information Technology MIMO Enables the Digital Home delivers whole home coverage with th e speed and reliability to stream multimedia applications MIMO delivers MIMO can reliably connect cabled video de vices, computer networking devices, broadband connections, phone lines, music, storage devices, etc. MIMO is interoperable and can leverage the installed based of 802. 11 wireless that is already deployed: computers, PDAs, handheld gaming devices, cameras, VoIP Phones, etc. CEWIT - Center of Excellence in Wireless and Information Technology
