ISCAS 2002

Abstract:

This tutorial is intended to cover several selected topics in wireless communications, and will be given by four communications faculty at Arizona State University.

The first topic is on the use of multiple antennas for fading channels, specifically, the recently invented space-time coding techniques. In addition to the standard space-time codes, turbo coding based schemes will also be discussed. The second selected topic is orthogonal frequency division multiplexing (OFDM) to mitigate the frequency selective fading channel impairments that arise from high data rate communications with low-complexity processing at the transmitter and receiver. OFDM will be discussed from a systems perspective including its merits and also its drawbacks such as high peak-to-average-ratio at the transmitter and intercarrier interference due to frequency offsets. The third topic covers the cross layer design and analysis of CDMA wireless multimedia networks. In particular, it will include methodologies on utilizing the temporal structure of the multi-access interference to perform adaptive rate control for uplink, and on packet scheduling exploiting multiuser diversity for downlink. Recent progress on multiuser detection will also be reported. The fourth topic is on advances in time-varying signal processing for wireless communications. A survey will address some of the following methodologies: military jamming interference suppression; multi-carrier communication pulse shaping; time-varying modulation for multiuser systems; diversity in high data rate applications with multipath and Doppler distortion.

About the Presenters:

Tolga M. Duman has joined ASU as an assistant professor in 1998 after he received his Ph.D. from Northeastern University. His current research interests are in digital communications, wireless and mobile communications, channel coding, turbo codes, coding for recording channels, and coding for wireless communications.

Antonia Papandreou-Suppappola received her doctorate in Electrical Engineering at the University of Rhode Island (May 1995) before accepting a research faculty position (1995-1999). She joined the Arizona State University faculty in August 1999. Her research areas include signal processing for wireless communications, integrated sensors, time-frequency analysis, and detection and estimation theory.

Cihan Tepedelenlioglu received his PhD degree from the University of Minnesota in May 2001. He is currently an Assistant Professor of Electrical Engineering at the Telecommunications Research Center in Arizona State University. His research interests include wireless communications, estimation and equalization algorithms for wireless systems, filterbanks and multirate systems, carrier synchronization for OFDM systems, power estimation and handoff algorithms.

Junshan Zhang joined the Department of Electrical Engineering at Arizona State University in 2000, right after he received his Ph.D. degree from Purdue University. His current research interests include cross-layer design of wireless systems, radio resource management, multiuser detection, and information theory.