visible light coomunication
i try this project visible light communication using OFDM with QAM scheme. for that i have designed all the blocks and and using LED as transmitting source but the problem i am getting is that the system is not able to detect the transmitted data and the min BER is 1. and when i use directly modulated laser in analog mode i am getting the exact data that i have transmitted.
but the same i result i want using LED at visible frequency that is at 700nm..can somebody help me with that??
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