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An alternative expression for the symbol-error probability of MPSK in the presence of I/Q unbalance
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- Authors
- Seungkeun Park, Dongweon Yoon
- Issue Date
- 2004-12
- Citation
- IEEE Transactions on Communications, v.52, no.12, pp.2079-2081
- ISSN
- 0090-6778
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- This letter provides a new expression for the probability of the phase angle between two vectors perturbed by Gaussian noise with in-phase/quadrature-phase (I/Q) unbalance, in order to simplify the analysis of the error probabilities of M-ary phase-shift keying (MPSK). The error probabilities, symbol-error rates, or bit-error rates for MPSK with I/Q balance or unbalance, can be presented straightforwardly from the derived expression. Because the newly derived result is provided in terms of the conventional first-order Gaussian Q-function and the joint Gaussian Q-function with a correlation coefficient dependent on M, it readily allows rapid evaluation for various cases of practical interest. © 2004 IEEE.
- KSP Keywords
- Correlation Coefficient, First order, Gaussian noise, In-phase, M-ary phase shift keying(M-PSK), Q-Function, Rapid evaluation, Two vectors, error probability, error rate, phase angle