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Dr. Roger S. Cheng - ECE Professor & Engineer. Bio and Research on Wireless Communications Tech

Dr. Roger S. Cheng, an ECE Professor and Associate Dean, is a prominent figure in wireless communication systems research with over 150 publications focusing on OFDMA technology, MIMO systems, and more. Learn about his contributions and impact on communication efficiency.

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Dr. Roger S. Cheng - ECE Professor & Engineer. Bio and Research on Wireless Communications Tech

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  1. Roger S Cheng Professor, Dept of ECE Asso Dean, School of Engineering

  2. Brief Bio • Born in HK and went to the US after F.6 • BS from Drexel University • MS and PhD from Princeton University • Assistant Professor at University of Colorado, Boulder (1991-95) • Join HKUST in 1995 (16 years ago!!) • Professor (ECE Dept) & Asso Dean (School of Engineering)

  3. IEEE Fellow Citation For Contributions to Multiuser Communications in Wireless Systems

  4. Research Achievements • Over 150 publications • Total Citations: • Top 10 Papers: > 3600 citations • Top 30 Papers: > 4500 citations • H-index: 27 • 27 papers, each with >27 citations • Patents/Patent Applications: 19

  5. My Research Area Makes Communication Possible • Multiuser Information Theory • Fundamental Theoretical Foundation for communication systems • Wireless Communications Systems • Code Division Multiple Access (CDMA) Technology • Technology Used in 3G mobile phone systems • OFDM and OFDMA Technology • Technology Used in WiFi, 4G mobile communication systems • MIMO Systems and Coding • Technology Used in WiFi, 4G mobile communication systems • Cooperative Communications • Technology to be used in future wireless communications systems • Decoding and receiver Design • VLSI architecture for communication algorithm • Technology used in implementing ICs or chips Makes Communication Faster Makes Communication Cheaper

  6. OFDMA Technology in Wireless Communication Systems • Motivation: • Scarce Resources in Wireless Communications: • Bandwidth, Time slots, Transmit Power • Need to use them effectively and efficiently • OFDMA Technology: • Allocate resources (time slots, frequency bands, and power level) optimally and dynamically based on the wireless channel conditions experienced by the mobiles collectively • Impact: • Fast and better communication quality • Enable 4G wireless technology, 11n WiFi standard, etc

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