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Semantic Signal Processing Group Semantic Radio Fangming He, Hongbing Cheng, Jiadi Yu, Hong Man, Yu-dong Yao, Jennifer Department of Electrical and Computer.

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Presentation on theme: "Semantic Signal Processing Group Semantic Radio Fangming He, Hongbing Cheng, Jiadi Yu, Hong Man, Yu-dong Yao, Jennifer Department of Electrical and Computer."— Presentation transcript:

1 Semantic Signal Processing Group Semantic Radio Fangming He, Hongbing Cheng, Jiadi Yu, Hong Man, Yu-dong Yao, Jennifer Department of Electrical and Computer Engineering April. 28, 2010 1

2 Semantic Signal Processing Group Hierarchical Structure of Semantic Radio 2  User profile Layer  Radio System Layer  Signal Processing layer  Computational Layer  Coding Layer

3 Semantic Signal Processing Group Primitives of Semantic Radio 3 SSP LayerComputational LayerCoding Layer Signal Sources Signal Sinks Filters Signal Modulation Signal Demodulation Source coding and decoding Synchronization Equalization AGC OFDM blocks Pager blocks Slicing and dicing stream Channel Coder and Decoder Digital Filters Design DCT/IMDCT Convolution LUT DFT/RDFT/FFT/WH T/DHT Searching Correlation Integrate Differentiate Thresholding Wavelet Transform  Matrix  Moment Algebraic calculation: +, -, *, / Logic calculation: xor, nor, and Type conversions Relational Operator : == ,! =  Conditional control: if… else…, while, for, switch… case.

4 Semantic Signal Processing Group 4 Modulation ModuleComputational Module Signal Source Random Signal; Carrier Signal; Random Noise Generator; Sequence Generator Modulation M-PSK; M-FSK; M-ASK; CPFSK; M-QAM Filter FFT filter; FIR filter Channel Coding Block coding; Convolution Coding; Turbo Coding; Viterbi Decoding Source Coding Huffman Coding; arithmatic coding; μ-law compander, A- law compander Equalizer Linear equalizer; Decision feedback equalizer; Non-linear equalizer; Channel estimator LS; MMSE; LMMSE Synchronization Coherent detection & Noncoherent detection: Energy Detection, Match filter, Diversity combining Primitives of Semantic Radio ---- SSP layer

5 Semantic Signal Processing Group 5 SSP layer Equalizer ModuleComputational ModuleCoding Module Equalizer Convolution+, -, *, / Adaptive Equalizer Convolution, Thresholding +, -, *, / Modulation ModuleComputational ModuleCoding Module GMSK Convolution, Exponential, Differentiate, Integrate, +, -, *, / M-FSK Integrate, Exponential M-PSK Mapping

6 Semantic Signal Processing Group 6 Switch

7 Semantic Signal Processing Group 7 While

8 Semantic Signal Processing Group 8 Vector Matrix Structure Pointer Recursive every recursive function call can been viewed as a ordinary function call. The description of go to, break and continue in XML? Structure includes array and matrix in signal processing filed? The definition of pointer to the function? The description of union in XML? Array for characters? Others


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