Optimal linear detectors for nonorthogonal amplify-and-forward protocol

Author

Ahmed, Qasim Zeeshan ; Ki-Hong Park ; Alouini, Mohamed-Slim ; Aissa, Sonia

Author_Institution

Comput., Electr., & Math. Sci. & Eng. (CEMSE) Div., King Abdullah Univ. of Sci. & Technol. (KAUST), Thuwal, Saudi Arabia

fYear

2013

fDate

9-13 June 2013

Firstpage

4829

Lastpage

4833

Abstract

In this paper, we propose optimal linear detectors for non-orthogonal amplify-and-forward cooperative protocol when considering a single-relay scenario. Two types of detectors are proposed based on the principles of minimum mean square error (MMSE) and minimum bit error rate (MBER). The MMSE detector minimizes the mean square error, while the MBER minimizes the system bit error rate (BER). Both detectors exhibit excellent BER performance with relatively low complexity as compared to the maximal likelihood (ML) detector. The BER performance of both detectors is superior to the channel inversion, the maximal ratio combining, and the biased ML detectors.

Keywords

amplify and forward communication; cooperative communication; error statistics; least mean squares methods; protocols; MBER; MMSE; biased ML detector; channel inversion; cooperative protocol; maximal ratio combining; minimum bit error rate; minimum mean square error; nonorthogonal amplify-and-forward protocol; optimal linear detector; Bit error rate; Computational complexity; Detectors; Diversity reception; Protocols; Relays;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications (ICC), 2013 IEEE International Conference on

Conference_Location

Budapest

ISSN

1550-3607

Type

conf

DOI

10.1109/ICC.2013.6655339

Filename

6655339