g Lehrstuhl für KommunikationsTechnik, Lehrst
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1 g Lehrstuhl für Kommunitions, Lehrst
2 Kommunitions Univ.-Prof. Dr.-Ing. hbil. Peter Jung Dr.-Ing. Guido H. Bruc Lehrstuhl für Kommunitions Universität Duisburg-Essen, Duisburg, Germny, Tel.: +49 (0)203 / ; Fx: +49 (0)203 / E-Mil: {peter.jung,guido.bruc}@kommunitions.org URL: Loction of Peter Jung s lb@cmpus Duisburg Bldg. BB, 6 th nd 7 th floor, Oststrsse 99, Duisburg-Neudorf Lehrstuhl für Kommunitions ( Universität Duisburg-Essen, Duisburg, Germny Tel.: +49 (0)203 / ; Fx: +49 (0)203 / , E-Mil: {peter.jung,guido.bruc}@kommunitions.org
3 Kommunitions Integrtion of Wireless Multimedi Applictions Access 9600 bit/s 34% reduction % reduction Server with dt reduction t / s 300 Direct ccess Prmeter optimiztion of source coding lgorithms for Dt Reduction tilored for the ppliction in Internet (Internet Protocol, IP) bsed Wireless Multimedi Applictions. Cross-Lyer Optimiztion techniques, e.g. Joint Source nd Chnnel Coding nd Decoding techniques. Middlewre nd Appliction Softwre development, e.g. of integrted udio/video (AV) pplictions, lie web site nd still imge trnsmission, video streming tilored to mobile hndsets, biometricl prmeter trnsmission (e.g. hndwriting trnsmission), evlution of the colour reproducibility of displys for mobile terminls. Present Subprojects re Mobile Dt Compressor, Joint Source nd Chnnel Decoding (JSCD), Wireless MediCre, Jv Bsed Secure Mobile Web Terminl (MWT), CrIT. Lehrstuhl für Kommunitions ( Universität Duisburg-Essen, Duisburg, Germny Tel.: +49 (0)203 / ; Fx: +49 (0)203 / , E-Mil: {peter.jung,guido.bruc}@kommunitions.org
4 Kommunitions Infrstructure Aspects of Wireless Communiction Systems Development nd nlysis of Qulity of Service (QoS) bsed dptive Rdio Resource Mngement (RRM) strtegies in cellulr systems, in prticulr Dynmic Resource Alloction, i.e. dynmic chnnel lloction (DCA), nd Hybrid Resource Alloction, i.e. hybrid chnnel lloction (HCA) techniques bsed on Gme Theory; Lod Control for multimedi pplictions. Control strtegies, in prticulr Power Control nd Hndover/Hndoff, respectively (hrd, soft, softer). Performnce Evlution, e.g. of outge probbilities w.r.t. the fulfilment of qulity of service (QoS) criteri. Present Subprojects re Rdio Resource Mngement in Wireless Systems, Qulity of Service (QoS) for Mobile Pcet Services. Lehrstuhl für Kommunitions ( Universität Duisburg-Essen, Duisburg, Germny Tel.: +49 (0)203 / ; Fx: +49 (0)203 / , E-Mil: {peter.jung,guido.bruc}@kommunitions.org
5 Kommunitions New Technologies of Signl Demodultion (sifirx, JoinTrns) δ1 δ2 δ3 t t t δ 1 ˆ T ( ) 1 1 fif fif T = Gd + n d = G G G δ Development nd theoreticl nlysis of system nd signl models with Non- Equidistnt Smpling, in prticulr nlyticl description of noise nd intersymbol interference t the output of Zero Crossing Detectors; derivtion of pproprite liner system equtions by using mtrix-vector clculus. Derivtion of novel receiver structures with zero crossing demodultion for wireless systems (e.g. Bluetooth, DECT, GSM, EDGE, UMTS, IEEE g,n, UWB), in prticulr design nd theoreticl s well s simultive nlysis of optimum nd suboptimum receiver lgorithms; evlution of chnnel nd source coding combined with zero crossing demodultion. Joint Trnsmission nd Predistortion Techniques with equidistnt nd non-equidistnt smpling. Present Subprojects re Theory of Irregulr Smpling, Bluetooth/GSM/DECT Trnsceiver w/ Irregulr Smpling, Joint Trnsmission nd Predistortion Techniques. Lehrstuhl für Kommunitions ( Universität Duisburg-Essen, Duisburg, Germny Tel.: +49 (0)203 / ; Fx: +49 (0)203 / , E-Mil: {peter.jung,guido.bruc}@kommunitions.org
6 Kommunitions Reconfigurble Rdio (Softwre Defined Rdio, SDR) High Frequency Rdio Frequency smple rtes Intermedite Frequency Anlog Bsebnd Digitl Bsebnd Demodultion Appliction complexity of lgorithms Low Frequency Anlog Digitl Hrdwre Softwre Estblishment of Design Prdigms nd Prtitioning Strtegies for mobile terminls ting technologicl restrictions into ccount, in prticulr design nd nlysis of trnsceiver front ends (unstbilized oscilltors, low IF nd zero IF concepts); hrdwre/softwre split in trnsceiver dt pths (turbo principle), bsed on the expected signl processing effort, the power consumption nd the required chip re; implementtion of Rel-Time Signl Processing on e.g. the C6000 DSP pltform by Texs Instruments nd mesurements of the signl processing behviour. Concept engineering for Multi-Stndrd Single Chip Trnsceivers for GSM, UMTS, Bluetooth, WLAN (i.e. IEEE g,n) nd UWB. Reliztion of Demonstrtors bsed on multi DSP solution with e.g. C6000 DSPs by Texs Instruments. Present Subprojects re Softwre Defined Rdio Demonstrtor, UMTS/WCDMA PHY Performnce Aspects, Turbo-Codes for Impulsive Noise Environments, Turbo-Codes Anlysis Using EXIT Chrts. Lehrstuhl für Kommunitions ( Universität Duisburg-Essen, Duisburg, Germny Tel.: +49 (0)203 / ; Fx: +49 (0)203 / , E-Mil: {peter.jung,guido.bruc}@kommunitions.org
7 Kommunitions Smrt Antenns for Future Wireless Communictions Td i strongest (, ) mx (, ) intercell interference { } ρ τϕ ρ τϕ l Td α ( ) ( 6) = l τ µs ( ) ( 4) = α = 4 = 5 Cholesy decomposition of R = 6 = 3 RP = ϕ 7 mtched filtering o = 2 = 1 = 8 (( ) ) H ( ) A γ ( i ) i temporl decorreltion desired signl from direction d β omni-directionl ntenn element (, ) d RP: reference point RL: reference line RL ( ) ( ) ( ) 1 ˆ K -1-1 NQ = + W 1 n n d L L I L L I Cholesy decomposition of R n sptil decorreltion Design nd Anlysis of 3G nd beyond 3G (B3G/4G) Wireless Communiction Systems with smrt ntenns, e.g. mthemticl description of multiple input multiple output (MIMO) systems with rry ntenns, modelling of the trnsmission chnnel with ngulr nisotropy. Development of Diversity, Bemforming nd MIMO techniques for performnce nd Cpcity Enhncements, in prticulr chnnel estimtion techniques for e.g. direction of rrivl estimtion (DOAE), optimum nd suboptimum combining nd detection techniques ; evlution of the system performnce of e.g. 3G systems nd UTRA LTE (UMTS Terrestril Rdio Access Long Term Evolution), e.g. by determining the bit error rtio, the throughput, nd the spectrl efficiency, in prticulr for UTRA/LCR-TDD, UTRA/HSDPA nd UTRA/HSUPA evolutions. Development of Demonstrtors. Present Subprojects re Sptil nd Non-Sptil Chnnel Modeling, Principles of Bemforming, Diversity nd MIMO Schemes. e Lehrstuhl für Kommunitions ( Universität Duisburg-Essen, Duisburg, Germny Tel.: +49 (0)203 / ; Fx: +49 (0)203 / , E-Mil: {peter.jung,guido.bruc}@kommunitions.org
8 Kommunitions Trnsceiver Techniques for Mobile Communiction Systems Beyond 3G (B3G) Design nd nlysis of trnsceiver concepts for mobile communiction systems with code division multiple ccess (CDMA) nd Multicrrier Techniques, such s orthogonl frequency division multiple ccess (OFDM) nd combintions thereof (e.g. Multicrrier-CDMA). Implementtion-friendly design of optimum nd suboptimum Signl Processing Algorithms for receivers. Introduction of the Turbo Principle to receivers by using Soft Input/Soft Output receiver components bsed on lielihood, or equivlently, on loglielihood processing. Present Subprojects re PHY Aspects of UTRA Evolution, Multicrrier Techniques for Mobile Communictions Beyond 3G. Lehrstuhl für Kommunitions ( Universität Duisburg-Essen, Duisburg, Germny Tel.: +49 (0)203 / ; Fx: +49 (0)203 / , E-Mil: {peter.jung,guido.bruc}@kommunitions.org
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