A simple lower bound, an upper bound and a simple approximation to the upper bound on the probability of error for coherent phase-shift-keyed (CPSK) systems operating in the presence of intersymbol interference and additive noise are obtained. The additive noises in the in-phase channel and the quad
Probability of error in digital fiber optic systems with inter-symbol interference and signal dependent additive noise
โ Scribed by Y.C. Jenq
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 634 KB
- Volume
- 307
- Category
- Article
- ISSN
- 0016-0032
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โฆ Synopsis
Data transmission uia optical fiber is a new discipline of communication theory. The principal difference from conuentional baseband data transmission, which is characterized by a signal independent additive Gaussian noise, is the existence of a signal dependent shot noise.
This paper presents a technique for estimating the error probability performance of digital systems with inter-symbol interference and signal dependent additive noise. For binary antipodal (*l) systems, the approximate upper bound to the error probability is twice the lower bound. Hence either can be taken as a good approximation to the actual error probability.
7'he technique is then applied to a model of some promising optical data communication systems and a good approximation to the error probability is obtained. Some observations about the effect of various system parameters on the error probability and some numerical examples are presented.
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