When are the MLSD respectively the matched filter receiver optimal with respect to the BER?
Författare
Summary, in English
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.
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.
Publiceringsår
1995
Språk
Engelska
Sidor
331-331
Publikation/Tidskrift/Serie
[Host publication title missing]
Dokumenttyp
Konferensbidrag
Ämne
- Electrical Engineering, Electronic Engineering, Information Engineering
Conference name
IEEE International Symposium on Information Theory, 1995
Conference date
1995-09-17 - 1995-09-22
Conference place
Whistler, Canada
Status
Published