The above-mentioned paper [1] derives bounds on the error probability of a decision feedback equalizer (DFE) which are claimed to be significantly tighter than the earlier upper bound of [2]. Unfortunately, [1] makes an unsupportable assumption which reddars the conclusions incorrect. We show that valid bounds can be obtained by the methods of [1], but that for the numerical example of [2] , the resulting upper bound is never tighter than, and sometimes significantly weaker than, that derived in [2]. Similarly, a lower bound derived by the method of [1] is shown for the same numerical example to be very close to the error-free past lower bound previously known.
Comments on "on Probability of Error in Decision Feedback Equalizer"
IEEE Transactions on Aerospace and Electronic Systems ; AES-14 , 2 ; 373-375
01.03.1978
354569 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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