1. V o d a f o n e C h a i r Mobile Communications Systems Beware of COBRA ! COmputer Based Radio and Antennas Technische Universität Dresden

2. Technische Universität Dresden V o d a f o n e C h a i r Mobile Communications System Software Defined Radio Smart Antenna Concepts Implementation The Vodafone Chair Software Radio Smart Antennas Implementation Vodafone Chair Demonstrating future concepts of wireless communications ! 

3. Technische Universität Dresden V o d a f o n e C h a i r Mobile Communications System High Diversity of Communications Systems ! Mobility indoor pedestrian high DAB DVB -T UMTS GSM GPRS EDGE DECT 101001000 10000 100000 kBit/s Blue Tooth WLAN Data rate Software Radio Motivation Idea Demonstrator Concept Hardware Smart Antennas Implementation Vodafone Chair 

4. Technische Universität Dresden V o d a f o n e C h a i r Mobile Communications System Software Defined Radio - Idea Software Radio Motivation Idea Demonstrator Concept Hardware Smart Antennas Implementation Vodafone Chair Do as much signal processing as you can afford in software and you can use the same hardware for different communications systems simple download system updates and new features 

5. Technische Universität Dresden V o d a f o n e C h a i r Mobile Communications System Demonstrator Concept Antennas SignalProcessing RF-Components Transmitter Receiver Software Radio Motivation Idea Demonstrator Concept Hardware Smart Antennas Implementation Vodafone Chair 

6. Technische Universität Dresden V o d a f o n e C h a i r Mobile Communications System Smart Antennas - State of the Art Sectorized Antennas Beamforming at BS Space- Time Coding TX-Diversity at BS GSM,UMTS WLAN, UMTS Software Radio Smart Antennas State of Art Theory MIMO Systems Demonstrator Features Implementation Vodafone Chair 

7. Technische Universität Dresden V o d a f o n e C h a i r Mobile Communications System Theory of Multi Antenna Systems (MIMO ) Signal to Noise Ratio [dB] Throughput [bit/s/Hz] 051015202530 0 5 10 15 20 25 30 6 times more bits over a radio channel @ SNR of 20 dB ! Software Radio Smart Antennas State of Art Theory MIMO Systems Demonstrator Features Implementation Vodafone Chair 

8. Technische Universität Dresden V o d a f o n e C h a i r Mobile Communications SystemMIMO-SystemsSpace-Time-Coding One data stream over multiple TX-antennas (robustness) V-BLAST One data stream for each antenna (high-data rate) Transmitter Receiver D-BLAST,Multi-Stratum-Space-Time-Codes Multiple Data Streams over all antennas (high data rate & robustness) Software Radio Smart Antennas State of Art Theory MIMO Systems Demonstrator Features Implementation Vodafone Chair 

9. Technische Universität Dresden V o d a f o n e C h a i r Mobile Communications System Demonstrator Features Direct Sequence Spread Spectrum System Compliant with UMTS-Uplink Physical Layer implemented Includes true synchronization Usage of multiple antennas (currently 2 x 2) Achievements: Space-Time-Channel measurements Performance Evaluation Space-Time- Algorithms General Software Radio Framework including GUI’s Software Radio Smart Antennas State of Art Theory MIMO Systems Demonstrator Features Implementation Vodafone Chair 

10. Technische Universität Dresden V o d a f o n e C h a i r Mobile Communications System Scalable Transmitter Setup Sampling rate: 7.68 MHz Frequency Output: Baseband Bandwidth: 4.68 MHz RRC Filter RRC Filter Lowpass IQ-Mod Host PC ICS 660 To RF and antennas D/A Converter PPC 7400 UMTS Spreading PPC 7400 Data Source GUI Software Radio Smart Antennas Implementation Transmitter Receiver Vodafone Chair 

11. Technische Universität Dresden V o d a f o n e C h a i r Mobile Communications System Scalable Receiver Setup From RF and antennas PPC 7400 ICS 660 RRC Filter PPC 7400 Lowpass ICS 660 Demod A/D PPC 7400 Frequency Sync. Time Sync. 3-Finger-Space-Time RAKE-Despreader Host Antenna Combiner GUI Sampling rate: 61.44 MHz (16x chiprate) Frequency Input: 15.36 MHz (IF = 4x chiprate) Bandwidth: 4.68 MHz Software Radio Smart Antennas Implementation Transmitter Receiver Vodafone Chair 

12. Technische Universität Dresden V o d a f o n e C h a i r Mobile Communications System Project Sponsors COBRA demonstrator is part of the Project Project We would like to thank the following sponsors: Software Radio Smart Antennas Implementation Transmitter Receiver Sponsors Vodafone Chair  

13. Technische Universität Dresden V o d a f o n e C h a i r Mobile Communications System The - Chair and its Partners 1professor 3secretaries 4sen. scientists 2system adm. 2post-doc’s 20Ph.D. students 15+ Ms students Sponsors Project Partners New since 2002 Software Radio Smart Antennas Implementation Vodafone Chair Sponsors Research IPP Spin-Off‘s 

14. Technische Universität Dresden V o d a f o n e C h a i r Mobile Communications System Research Topics Equipment Manufacturer Semiconductor Vendor Network Operator Physical Layer Research Software Radio Smart Antennas Implementation Vodafone Chair Sponsors Research IPP Spin-Off‘s 

15. Technische Universität Dresden V o d a f o n e C h a i r Mobile Communications System Industry Partner Program (IPP) This sponsoring program provides an opportunity for companies to support our research activities, to enhance teaching, to get in touch with our researchers and students. As a thank you our IPP members will receive our quarterly newsletter "Dresden Mobile" copies of MS-diploma theses and student project reports copies of our publications and pre-prints an invitation to our annual IPP event. The IPP membership therefore provides a platform to keep close contact with our chair. IPP-Event on October 15, 2003 Software Radio Smart Antennas Implementation Vodafone Chair Sponsors Research IPP Spin-Off‘s 

16. Technische Universität Dresden V o d a f o n e C h a i r Mobile Communications System Founded 1999 Based in San Jose and Dresden with a RF design center in Maynard, Massachusetts Investors include Apax, Atlas, Lehman Brothers and Sony 60 Mb/s Wireless LAN Chip (IEEE 802.11a/b) released in 2002 2002 Philips Semiconductors has acquired Systemonic Software Radio Smart Antennas Implementation Vodafone Chair Sponsors Research IPP Spin-Off‘s 

17. Technische Universität Dresden V o d a f o n e C h a i r Mobile Communications System Network Planning Network Engineering Radioplan provides the technical essentials necessary to efficiently and effectively plan, build, and run mobile radio networks www.radioplan.de (Founded in 2000)Mission Software Radio Smart Antennas Implementation Vodafone Chair Sponsors Research IPP Spin-Off‘s 

18. V o d a f o n e C h a i r Mobile Communications Systems Software Radio –MotivationMotivation –IdeaIdea –Demonstrator ConceptDemonstrator Concept –HardwareHardware Smart Antennas –State of ArtState of Art –TheoryTheory –MIMO SystemsMIMO Systems –Demonstrator FeaturesDemonstrator Features Implementation –TransmitterTransmitter –ReceiverReceiver –Project SponsorsProject Sponsors Vodafone Chair –SponsorsSponsors –ResearchResearch –IPPIPP –Spin-Off‘sSpin-Off‘s Technische Universität Dresden