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Comm Final Project Proposal 802.11a Physical Layer
第一組 電機四 B 蔡馭理 電機四 B 溫建樹 資工四 B 智障鴻
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802.11a Physical Layer Structure
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Modulation OFDM transmit infomation by modulated signal and always use M-PSK, M-QAM. M-PSK modulation M-QAM
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802.11a Modulation Mode
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Concept of Serial/Parallel
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Inverse Fast Fourier Transform
We use IFFT to represent OFDM signal. IFFT and Muti-carrier wave are same.
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OFDM Signal Consider a serial data and
The m-st output signal is (IFFT output) means signal length
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OFDM Signal We only consider real part Pass low pass filter
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Our project schedule 12/06~12/13 (1)OFDM reading
(2)FFT and IFFT implement 12/13~12/20 (1)S/P and P/S (2)Combine all the component 12/20~12/27 (1)AWGN and Fading channel (2)Add and Remove Guard Interval 12/27~01/03 (1)Modulatotion and Demodulation (2)Pilot Sequence and Equalizer 01/17~01/24 (1)Convolution Encoder and Decoder (2)Interleaver and De-interleaver (3)Combine and finish a
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802.11a Physical Layer Structure
We want to implement the structure. Implement by C or C++ language. We may do some different modulation to get different result. The structure mainly is OFDM, so we intend to do from OFDM. If the time is enough, we continue to do a Physical Layer.
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Reference 1.通訊系統設計與模擬 2. 3. 4.Google
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