Transmit Power Allocation Scheme for Cooperative Wireless Networks based on Spatial Multiplexing

Author

Jing Zhang ; Fu, Xing ; Tao, Xiaofeng ; Xu, Jin ; Ping Zhang

Author_Institution

Beijing Univ. of Posts & Telecommun., Beijing

fYear

2007

fDate

3-7 Sept. 2007

Firstpage

1

Lastpage

5

Abstract

Power allocation problem in Decode and Forward (DF) wireless cooperative multiplexing communication systems is considered in this paper. We first derived an analytical bit error rate (BER) expression with BPSK modulation at the relays and Zero Forcing Successive Interference Cancellation (ZF-SIC) algorithm at the destination, which gives deep insight to how different power assignments among the source and the relays influence the BER performance. Based on this expression, a new power allocation algorithm is developed by minimizing BER under different power constraints, the effectiveness of which has been validated by both theoretical analysis and Monte Carlo simulations.

Keywords

Monte Carlo methods; channel allocation; error statistics; interference suppression; phase shift keying; radio access networks; radiofrequency interference; wireless channels; BER performance; BPSK modulation; Monte Carlo simulations; analytical bit error rate; decode and forward wireless cooperative multiplexing communication systems; power allocation; zero forcing successive interference cancellation algorithm; Algorithm design and analysis; Binary phase shift keying; Bit error rate; Communication systems; Decoding; Error analysis; Performance analysis; Power system relaying; Wireless communication; Wireless networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2007. PIMRC 2007. IEEE 18th International Symposium on

Conference_Location

Athens

Print_ISBN

978-1-4244-1144-3

Electronic_ISBN

978-1-4244-1144-3

Type

conf

DOI

10.1109/PIMRC.2007.4394511

Filename

4394511