Bit Error-Rate Minimizing Detector for Amplify-and-Forward Relaying Systems Using Generalized Gaussian Kernel

Qasim Ahmed, Mohamed-Slim Alouini, Sonia Aissa

Research output: Contribution to journalArticle

12 Citations (Scopus)


In this letter, a new detector is proposed for amplify and-forward (AF) relaying system when communicating with the assistance of relays. The major goal of this detector is to improve the bit error rate (BER) performance of the receiver. The probability density function is estimated with the help of kernel density technique. A generalized Gaussian kernel is proposed. This new kernel provides more flexibility and encompasses Gaussian and uniform kernels as special cases. The optimal window width of the kernel is calculated. Simulations results show that a gain of more than 1 dB can be achieved in terms of BER performance as compared to the minimum mean square error (MMSE) receiver when communicating over Rayleigh fading channels.
Original languageEnglish
Pages (from-to)55-58
Number of pages4
JournalIEEE Signal Processing Letters
Issue number1
Publication statusPublished - 1 Jan 2013
Externally publishedYes


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