Abstract
The contribution of this letter is the computation of exact symbol error probability (SEP) of three-dimensional (3- D) signal constellations over an additive white Gaussian noise (AWGN) channel. The originality of the proposed method is that it can be applied to any arbitrary 3-D constellation whose decision regions may not meet at right angles. We express the SEP in a triple integral form which is further simplified. The simplified form requires a single integral evaluation of standard "erf" function. Using the derived exact SEP formula, we plot SEP for a number of selected 3-D constellations. The SEP obtained using the proposed formula is validated by simulation results. It is also compared with the union bound approximation, an upper bound for SEP.
Original language | English (US) |
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Pages (from-to) | 922-925 |
Number of pages | 4 |
Journal | IEEE Transactions on Communications |
Volume | 57 |
Issue number | 4 |
DOIs | |
State | Published - 2009 |
Keywords
- Additive white Gaussian noise (AWGN)
- Multidimensional signal constellation
- Symbol error probability
ASJC Scopus subject areas
- Electrical and Electronic Engineering