Symbol error rate analysis and power allocation for decode and forward relaying with channel estimation error

Author

Razavi, Ali ; Pakravan, Mohammad R.

Author_Institution

Dept. of Electr. Eng., Sharif Univ. of Technol., Tehran, Iran

fYear

2012

fDate

23-25 April 2012

Firstpage

1

Lastpage

6

Abstract

In this paper we study the statistical properties of the Signal to Noise Ratio (SNR) of the dual-hop relaying link in a cooperative wireless communication system in the presence of channel estimation errors for Decode and Forward (DF) relaying protocol. Then for assessment of the system performance the Symbol Error Rate (SER) is considered. Two approaches are introduced for SER calculation from which the second one results in a closed form solution. Finally the second approach is used to find an optimum power allocation scheme for transmission of pilot and data symbols at the source and the relay terminals that results in minimizing the SER and considerable amount of power saving. Also Monte Carlo simulation is used to confirm the accuracy of the derived expressions.

Keywords

Monte Carlo methods; channel estimation; cooperative communication; decode and forward communication; protocols; Monte Carlo simulation; SER; channel estimation errors; cooperative wireless communication system; decode and forward relaying protocol; dual-hop relaying link; optimum power allocation scheme; power allocation; signal to noise ratio; symbol error rate; symbol error rate analysis; Channel estimation; Estimation; Modulation; Protocols; Relays; Resource management; Signal to noise ratio; Channel Estimation Error; Cooperative Diversity; Decode and Forward; Power Optimization; Symbol Error Rate;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications (ICT), 2012 19th International Conference on

Conference_Location

Jounieh

Print_ISBN

978-1-4673-0745-1

Electronic_ISBN

978-1-4673-0746-8

Type

conf

DOI

10.1109/ICTEL.2012.6221254

Filename

6221254