xtcx
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16-QAM
Hi friends!, I am involved with software defined radio project. hence i need to design the FPGA with all possible modulation esp for students study purpose. Now that i have seen many websites for a proper knowledge of how to design 16-QAM or 32-QAM, but i couldn't find such detailed diagram or atleast block diagram anywhere in the internet
Well!, I have referred some books and finally was able to design 4-QAM successfully. Now how do I change this 4-QAM to 16-QAM or 32-QAM?. When i referred some book, both 8-QAM and 16-QAM employs same 2 to 4 level convertor only. It appears tat the major difference is bit rate and in 8-qam we split the input bits to 3( I, Q, C) and use C as common for I and Q channel encoding.... Whereas in 16-qam we split input bits as 4(I, I', Q, Q') and use I I' and Q Q'. Other than this the rest of the hardware doesn't change. What does this mean?. Is this the only difference between 8_QAM and 16_QAM?....Is my approach correct?. And what about 32-QAM?...5-bits extraction and 3 to 8 Level ?....Could someone clarify my doubt?. Im using xilinx System generator in SIMULINK - MATLAB for this project. I couldn't find much help in internet searches. Some experts here could help me....Thank you
Hi friends!, I am involved with software defined radio project. hence i need to design the FPGA with all possible modulation esp for students study purpose. Now that i have seen many websites for a proper knowledge of how to design 16-QAM or 32-QAM, but i couldn't find such detailed diagram or atleast block diagram anywhere in the internet
Well!, I have referred some books and finally was able to design 4-QAM successfully. Now how do I change this 4-QAM to 16-QAM or 32-QAM?. When i referred some book, both 8-QAM and 16-QAM employs same 2 to 4 level convertor only. It appears tat the major difference is bit rate and in 8-qam we split the input bits to 3( I, Q, C) and use C as common for I and Q channel encoding.... Whereas in 16-qam we split input bits as 4(I, I', Q, Q') and use I I' and Q Q'. Other than this the rest of the hardware doesn't change. What does this mean?. Is this the only difference between 8_QAM and 16_QAM?....Is my approach correct?. And what about 32-QAM?...5-bits extraction and 3 to 8 Level ?....Could someone clarify my doubt?. Im using xilinx System generator in SIMULINK - MATLAB for this project. I couldn't find much help in internet searches. Some experts here could help me....Thank you
