Amplify-and-Forward Relaying Aided Reed-Solomon Coded Hybrid-ARQ Relying on Realistic Channel Estimation

Author

Ngo, Hoang Anh ; Hanzo, Lajos

Author_Institution

Sch. of Electron. & Comput. Sci., Univ. of Southampton, Southampton, UK

fYear

2010

fDate

16-19 May 2010

Firstpage

1

Lastpage

5

Abstract

Channel estimation (CE) plays an important role in determining the achievable performance of coherently detected communications systems. In this paper, the impact of imperfect CE on Reed-Solomon coded Hybrid Automatic-Repeat-Request (ReS/H-ARQ) systems is investigated for transmission over correlated Rayleigh fading channels. The proposed scheme invokes Amplify-and-Forward relaying, where the benefits of multiple cooperative stations are also quantified. Both the corresponding bit error probability and goodput are characterized. The system parameters are adjusted for maximizing the attainable system performance. An optimum pilot power allocation scheme is proposed, which reduces the required bit-energy by 4 dB for the (255/223) Reed-Solomon code defined over the Galois field GF(256) without reducing the goodput.

Keywords

Galois fields; Rayleigh channels; Reed-Solomon codes; automatic repeat request; channel estimation; error statistics; Galois field; Rayleigh fading channel; Reed-Solomon Code; amplify-and-forward relaying; automatic-repeat-request system; bit error probability; channel estimation; hybrid-ARQ system; multiple cooperative station; power allocation scheme; Channel estimation; Error correction codes; Error probability; Fading; Galois fields; Power system relaying; Reed-Solomon codes; Relays; System performance; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC 2010-Spring), 2010 IEEE 71st

Conference_Location

Taipei

ISSN

1550-2252

Print_ISBN

978-1-4244-2518-1

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2010.5494031

Filename

5494031