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

被引：18

作者：

Ahmed, Qasim Zeeshan ^{[1
]}

Alouini, Mohamed-Slim ^{[1
]}

Aissa, Sonia ^{[2
]}

机构：

[1] King Abdullah Univ Sci & Technol KAUST, Phys Sci & Engn Div, Thuwal, Makkah Province, Saudi Arabia

[2] Univ Quebec, Inst Natl Rech Sci INRS, Montreal, PQ H3C 3P8, Canada

来源：

IEEE SIGNAL PROCESSING LETTERS | 2013年 / 20卷 / 01期

关键词：

Amplify-and-forward (AF); bit error rate; cooperative communications; kernel density estimation; COOPERATIVE DIVERSITY; CHANNEL ESTIMATION; NONCOHERENT; NETWORKS; DESIGN;

D O I：

10.1109/LSP.2012.2229271

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页码：55 / 58

页数：4

共 13 条

[1] Modulation and demodulation for cooperative diversity in wireless systems [J].