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Full-Text Articles in Social and Behavioral Sciences
Understanding Collaborative Teacher Teams As Open Systems For Professional Development, Kylie Lipscombe, Kellie A. Buckley-Walker, Peter Mcnamara
Understanding Collaborative Teacher Teams As Open Systems For Professional Development, Kylie Lipscombe, Kellie A. Buckley-Walker, Peter Mcnamara
Faculty of Social Sciences - Papers (Archive)
Teacher collaboration continues to be deeply grounded within effective professional development. Teacher teams, where small groups of teachers work together in teaching and learning, have become progressively more popular and are considered one of the most effective approaches to improvement and growth. However, teacher teams are situated within a school system where interrelated sets of elements, such as resources and priorities, interact and impact on their work. These interactions can both enable and constrain the necessary conditions of members working effectively together but also their capabilities in producing a meaningful impact on the school organization. As such, paying attention to …
Analog Least Mean Square Loop For Self-Interference Cancellation In In-Band Full-Duplex Systems, Anh Tuyen Le, Le Chung Tran, Xiaojing Huang, Y. Jay Guo
Analog Least Mean Square Loop For Self-Interference Cancellation In In-Band Full-Duplex Systems, Anh Tuyen Le, Le Chung Tran, Xiaojing Huang, Y. Jay Guo
Faculty of Engineering and Information Sciences - Papers: Part B
Analog Least Mean Square (ALMS) loop is a promising method to cancel self-interference (SI) in in-band full-duplex (IBFD) systems. In this talk, the steady state analyses of the residual SI powers in both analog and digital domains are derived in frequency domain. It is proved that the ALMS loop amplifies the frequency components of the residual SI at the edges of the signal spectrum in the analog domain, but the matched filter in the receiver chain reduces this effect. This results in a significant improvement of the interference suppression ratio in the digital domain before information data detection. The lower …
Beam-Based Analog Self-Interference Cancellation With Auxiliary Transmit Chains In Full-Duplex Mimo Systems, Anh Tuyen Le, Le Chung Tran, Xiaojing Huang, Y J. Guo
Beam-Based Analog Self-Interference Cancellation With Auxiliary Transmit Chains In Full-Duplex Mimo Systems, Anh Tuyen Le, Le Chung Tran, Xiaojing Huang, Y J. Guo
Faculty of Engineering and Information Sciences - Papers: Part B
Analog domain cancellation has been considered as the most important step to mitigate self-interference (SI) in fullduplex (FD) radios. However, in FD multiple-input multipleoutput (MIMO) systems, this method faces a critical issue of complexity since the number of cancellation circuits increases quadratically with the number of antennas. In this paper, we propose a beam-based radio frequency SI cancellation architecture which uses adaptive filters to significantly reduce the complexity. Data symbols for all the beams are up-converted by auxiliary transmit chains to provide reference signals for all adaptive filters. Hence, the number of cancellation circuits becomes proportional to the number of …
Full-Duplex Ofdm Relaying Systems With Energy Harvesting In Multipath Fading Channels, Jiaman Li, Le Chung Tran, Farzad Safaei
Full-Duplex Ofdm Relaying Systems With Energy Harvesting In Multipath Fading Channels, Jiaman Li, Le Chung Tran, Farzad Safaei
Faculty of Engineering and Information Sciences - Papers: Part B
In this paper, the performance of in-band fullduplex OFDM relaying systems with energy-harvesting and selfinterference cancellation in the polarization domain is analyzed. Specifically, we use the time switching-based relaying protocol to implement energy harvesting. The harvested energy is used by the relay to forward the transmitted information from the source. To cancel the self-interference, the polarization-enabled digital self-interference cancellation scheme is deployed at the relay. Our simulation results show that the full-duplex OFDM energy harvesting relaying system almost doubles the throughput, while maintaining the same bit error performance by a modest increase in the signal-to-noise ratio compared to the half-duplex …
Ftn Signaling-Aided Space-Time Multi-Mode Index Modulation Systems With A Gmp-Based Receiver, Shaoang Li, Nan Wu, Qiaolin Shi, Qinghua Guo
Ftn Signaling-Aided Space-Time Multi-Mode Index Modulation Systems With A Gmp-Based Receiver, Shaoang Li, Nan Wu, Qiaolin Shi, Qinghua Guo
Faculty of Engineering and Information Sciences - Papers: Part B
In this paper, we propose a faster-than-Nyquist (FTN) signaling-aided space-time multi-mode index modulation (IM) scheme with a low-complexity Gaussian message passing (GMP) based receiver. The advantages of spatial domain IM, time-domain IM relying on multiple modes and FTN signaling are explored. Specifically, multi-mode IM is employed in time domain by activating all time slots, hence the spectral efficiency is improved substantially compared to its single-mode counterpart. Meanwhile, the transmission rate is further increased by utilizing FTN signaling. At the receiver, based on the state-space model of IM symbols, a two-layer Forney style factor graph (FG) representation for the system is …