Low Complexity, High throughput wireless architecture Dayu Huang Advisor: Prof. Sean Meyn, Prof. Ada S.Y. Poon Illinois Center for Wireless Systems GOAL PROPOSED METHODOLOGY Wireless Architecture High Throughput Low Complexity Energy Efficient Signaling with energy efficient constellation which is also of low decoding complexity. Exploring channel fading mechanism. ISSUES Optimal Constellation matching to channel statistic leads to simple suboptimal constellation that outperforms in throughput conventional QAM of the same decoding complexity, as indicated by the capacity plot. Capacity plot implies ideal case; Study with simulation of system with proposed constellation is in progress, using more realistic channel model. Impacts of Analog Impairment on proposed constellation will be investigated by experiment with a FPGA-based Test Bed. Constellation on the right has the same decoding complexity as 16QAM, but considerably outperforms 64QAM (left) at high SNR. WORK IN PROGRESS FPGA-based Test Bed Symbols IFFT, Add CP Digital Up Converter Digital to Analog Transmitter Front-End Digital Down Analog to Digital Receiver Packet Detection Timing Recovery, Remove CP, FFT Computer FPGA Impairment the system diagram of the test bed