Cooperative detection of programme making special event devices in realistic fading environments
In an extensive outdoor propagation study, low antenna heights of 1.7 m are used at both the transmitter and the receiver to measure over 3500 wideband power-delay prooles PDPs of the channel for a peer-to-peer communications system. Rural and urban areas are studied in 22 different transmitter-receiver links. The results are used to characterize the narrowband path loss, mean delay, root-mean-square RMS delay spread, and timing jitter of the peer-to-peer wideband channel. Small-scale fading characteristics are measured in detail by measuring and analyzing 160 PDPs within each local area. This thesis shows the measurement setup for the calculation of fading rate variance and angular spread and reports the rst known attempt to calculate angular spread from track p o wer measurements. New analysis presented in this thesis shows the eeect of measurement error in the calculation of angular spread. The expected characteristics of angular spread are derived using two diierent angle-of-arrival AOA models from the literature. Measurement results show initial validation of Durgin's angular spread theory. A new measurement-based algorithm for simulating wideband fading processes is developed and implemented. This simulation technique shows promise in the simulation of high-bit rate peer-to-peer radio communication systems. Acknowledgments I owe a great debt of gratitude and thanks to Michael D'Aria, Raymond Lovestead, Christopher Wajciechowski, and Christopher Westcott for their eeorts in the measurement campaign. Without their help, measurement data could not have been taken. I also thank Gregory D. Durgin and Hao Xu for their helpful advice and guidance throughout the measurement campaign. I w ould also like to credit Dr. Robert J. Boyle and my advisor, Dr. Theodore S. Rappaport, for their management of the ITT project, their advice and review of this work. I give thanks for the love and support of my family, m y brother Parth and my mom and dad, Arti and Ken Patwari.search Fellowship. I am truly grateful for their support. They require a disclaimer that says that any opinions, ndings, conclusions or recommendations expressed in this publication are those of the author and do not necessarily reeect the views of the National Science Foundation.