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When are the MLSD respectively the matched filter receiver optimal with respect to the BER?

Publiceringsår: 1995
Språk: Engelska
Sidor: 331-331
Publikation/Tidskrift/Serie: [Host publication title missing]
Dokumenttyp: Konferensbidrag


We reconsider the minimum/optimal bit-error

probability receiver (OBER) for intersymbol interference

channels with Gaussian noise and the reception of finite

b1oc:ks of bits. We view the OBER as a function with

two inputs: the received sequence and an expected signalto-

noise ratio; and one output: the estimated block of

bits. Assuming that all sequences are equally probable to

be t.ransmitted we prove two results about the behaviour

of the QBER. We show that the QBER coincides with

the maximum likelihood sequence detector when designed

for high signal-to-noise ratios and that it collapses to a

matched filter followed by a hard-limiting device for low

expected signal-to-noise ratios.


  • Electrical Engineering, Electronic Engineering, Information Engineering


IEEE International Symposium on Information Theory, 1995

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