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by Krishna Sankar on May 11, 2008
In this post, let us try to understand Gray codes and their usage in digital communication. Quoting from Wiki entry on Gray code [Gray-Wiki], The reflected binary code, also known as Gray code after Frank [...]
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by Krishna Sankar on April 5, 2008
Post describes about the need for I-Q modulation by comparing the spectral efficiency of passband PAM and passband QAM.
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by Krishna Sankar on October 7, 2007
Following discussion of bit error rate (BER) for BPSK and bit error rate for FSK, it may be interesting to move on to discuss a higher order constellation such as Pulse Amplitude Modulation (PAM). Consider [...]
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