Budućnosti bežičnih komunikacija

Future Wireless – Trends and Challenges

In this talk the trends of several wireless communications aspects, including wireless technology, services, device technology, research and markets are discussed. Furthermore, an approach in distributed turbo coding (DTC) with soft information relaying is examined.

Instead of making hard decisions on the transmitted information symbols, as in the conventional DTC systems, the relay calculates and forwards the soft estimates of the transmitted symbols in the form of a posteriori probabilities. The proposed scheme has a significantly better performance than the conventional DTC. It approaches the performance of the DTC with automatic repeat request (ARQ) at the relay, with a much higher throughput. The scheme can be applied in wireless sensor and ad hoc networks.

Biography of Branka Vučetić

Branka Vucetic received the BSEE, MSEE and PhD degrees in 1972, 1978 and 1982, in Telecommunications, from The University of Belgrade, Belgrade. During her career she has held various research and academic positions in Yugoslavia, Australia and UK. Since 1986 she has been with the Sydney University School of Electrical and Information Engineering in Sydney, Australia.

She is currently a Professor in Telecommunications and the Director of the Telecommunications Laboratory at Sydney University. Her research interests include wireless communications, digital communication theory, error control coding and multi-user detection. Prof Vucetic published four books and more than two hundred papers in telecommunications journals and conference proceedings. She is an IEEE Fellow and a former Editor for the IEEE Transactions on Communications.