- Research Article
- Open Access
An Alternative Method to Compute the Bit Error Probability of Modulation Schemes Subject to Nakagami- Fading
© Wamberto J. L. Queiroz et al. 2010
- Received: 4 March 2010
- Accepted: 24 September 2010
- Published: 29 September 2010
This paper presents an alternative method for determining exact expressions for the bit error probability (BEP) of modulation schemes subject to Nakagami- fading. In this method, the Nakagami- fading channel is seen as an additive noise channel whose noise is modeled as the ratio between Gaussian and Nakagami- random variables. The method consists of using the cumulative density function of the resulting noise to obtain closed-form expressions for the BEP of modulation schemes subject to Nakagami- fading. In particular, the proposed method is used to obtain closed-form expressions for the BEP of -ary quadrature amplitude modulation ( -QAM), -ary pulse amplitude modulation ( -PAM), and rectangular quadrature amplitude modulation ( -QAM) under Nakagami- fading. The main contribution of this paper is to show that this alternative method can be used to reduce the computational complexity for detecting signals in the presence of fading.
- Quantum Information
- Amplitude Modulation
- Fading Channel
- Error Probability
- Additive Noise
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