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Congratulations to student Wu Xiaoxiao who received the Postgraduate Research Output Award 2014 at the 78th Congregation for the Conferment of Degrees!
Below is her sharing:
Over the last decade, transmit beamforming has been extensively studied and recently, widely applied as an efficient transmit scheme in multiple-input single-output (MISO) physical-layer multicast systems. Therein, beamforming based on semidefinite relaxation (SDR) has been shown to be promising, but its performance may degrade as the number of users increases. Our work proposes two innovative transceiver strategies, both of which subvert traditional fixed beamforming philosophy and can serve large-scale systems. Specifically, the first strategy, called stochastic beamforming (SBF), randomizes the beamformer in a per-symbol time-varying manner. We prove that their multicast achievable rate gaps with respect to the MISO multicast capacity must be no worse than 0.8314 bits/s/Hz, irrespective of any other factors such as the number of users. The second strategy combines transmit beamforming and the Alamouti space-time code, and it is shown to exhibit a better multicast rate scaling than SDR-based beamforming. Moreover, we further the work by combining SBF and the beamformed Alamouti scheme, wherein an improved constant rate gap of 0.39 bits/s/Hz is proven. These proposed beamforming schemes are tested under a channel-coded, many user setting, and yield significant SNR gains over many existing beamforming designs. Hence, they are practical and may reform beamforming systems with a low complexity payout.
Lau Ming Wai Laura won the Best Paper Award in the special session (Women in Engineering) in TENCON 2015.
TENCON is a premier international technical conference of IEEE Region 10, also referred as the Asia Pacific Region, one of the largest regional organizations of the IEEE.
There are a number of submissions to the special session of Women in Engineering in TENCON this year. Based on the paper quality, only three candidatures were selected to give presentations in the special session for the Best Paper Award. The candidatures include an assistant professor at PESCE, Mandya, a professor at LBS College of Engineering, and Lau Ming Wai Laura (final-year undergraduate student in Electronic Engineering in CUHK).
Laura performed excellent in both presentation and Q&A parts and finally won the Best Paper Award.
Congratulations!
Chi Fung Fei won the silver award in the HKEIA project competition. The project is her final-year project under Prof. Lee Tan's supervision. Below is her project description and feeling for receipt of award.
My project was named “Automatic Recognition for Visual Speech Commands”. Under the supervision of Professor Tan LEE, I developed a human-dependent visual-speech recognition method for Cantonese commands identification which is able to identify some simple Cantonese sentences from videos with front face captured, without evaluating audio signals. The method is expected to be used in user-dependent applications that aimed to help people with vocal cords problem, for example ex-Laryngeal cancer patient.
The competition provided students a great chance to apply the theoretical knowledge learnt in the past three years to real world situations. During the project development, I encounter many difficulties and they taught me the importance of multidimensional thinking and perseverance. All these experiences were valuable and cannot gain from textbooks. I was also very grateful for Professor LEE’s support and advice.
Congratulations to Fung Fei!
Subcategories
Research Groups Article Count: 9
Awards & Honors Article Count: 313
Research Grants Article Count: 84
