Special Session Speaker

M1.2 3:30pm MIMO: A disruptive technology enabling very high spectral efficiency beyond conventional limits Dr. Reinaldo Valenzuela Bell Laboratories

Abstract:

To demonstrate a real-time, mobile, networked MIMO system in a realistic tactical environment, the Defense Advanced Projects Agency (DARPA) has instituted a program called Mobile Network MIMO (MNM). The first stage of this program is to demonstrate such a system in a rural foliated environment using 20 MIMO equipped nodes using an ad hoc network in bandwidths of 1 MHz, 10 MHz, and 25 MHz, reaching a total network throughput of up to 1 Gbps. Each node is an SUV with 8 transmit and 10 receive antennas. For any particular link both nodes are naturally at ground level. Such node placement necessitates a channel measurement and modeling effort to determine quantities such as spatial correlations, delay spread as well as propagation loss. Some of the key propagation questions are whether the channels offer enough scattering richness to benefit from MIMO systems. Also of importance is determining the delay spreads experienced in rural environments ranging from densely wooded to open field with large but sparse clutter within Line of Sight. In this work some of the initial results of spatial channel characterization are shown for ground level nodes placed in a diverse rural environment.

Biography:

Dr. Reinaldo Valenzuela received the B.S. degree from the University of Chile, Santiago, and the Ph.D. degree from the Imperial College of Science and Technology of the University of London, London, UK. At Bell Laboratories, Holmdel, NJ, he studied indoor microwave propagation and modeling, packet reservation multiple access for wireless systems and optical wavelength division multiplexing (WDM) networks. He became Manager of the Voice Research Department at Motorola Codex, Boston, MA, where he was involved in the implementation integrated voice and data packet systems. On returning to Bell Laboratories, he led a multidisciplinary team to create a software tool for wireless system engineering (WiSE), now in widespread use in Lucent Technologies. He is interested in microwave propagation measurements and models, intelligent antennas, third-generation wireless system and space time systems achieving high capacities using transmit and receive antenna arrays. He has published over 80 papers and has 12 patents. Dr. Valenzuela is a Fellow of IEEE and the Editor for the IEEE TRANSACTIONS ON COMMUNICATIONS and the IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS. He received the Distinguished Member of Technical Staff Award and is Director of the Wireless Communications Research Department.