Performance limits and advanced methods in wireless networks

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With the transition from principally wired communication infrastructure towards versatile, tetherless anywhere communication, wireless communication and mobile data have revolutionized the way society functions. This freedom and almost anywhere connectivity comes at a large cost -- that of expensive and capital intensive infrastructure. Despite these large costs and significant benefits, many key performance characteristics and enabling technologies for wireless networks are not completely understood. The research proposed here will support the PI's ongoing long term research program in wireless networks to address these issues.Specifically, this program will combine advanced, cutting edge wireless communication techniques with innovative network deployment topologies, such as heterogeneous and cognitive networks. The thrusts are to: i) design practical lattice (or structured) coding techniques and architectures for wireless networks, ii) study the effect of intermittent energy reliability (such as from renewable energy sources) and energy harvesting technologies in wireless networks, iii) understand and solve issues in physical layer security in wireless networks, and iv) compute the practical effects of non-asymptotic methods in wireless networks such as the backoff from capacity due to constraints on communication delay.The results of the research will have important scientific and technological impacts. On the scientific side, the research aims to characterize fundamental performance tradeoffs. On the technical side, the insights and algorithms resulting from this research will provide the critical knowhow to conceive and engineer future networks. The research will thus provide benchmarks, insights on performance tradeoffs, and practical algorithms. By advancing personnel trained in this knowhow, the research will enable Canadian industry to remain at the leading edge.