Design of a Novel SS (Spread Spectrum) System based on Cooperative Communications

Author

Kong, Hyung Yun ; Van Khuong, Ho ; Jeong, Hwi Jae ; Lee, Dong-Un

Author_Institution

Dept. of Electr. Eng., Ulsan Univ.

fYear

2006

fDate

14-17 Nov. 2006

Firstpage

1

Lastpage

4

Abstract

In this paper, we first propose a novel system that combines multi-code spread spectrum modulation (McM) technique with orthogonal frequency division multiplexing (OFDM) employing quadrature amplitude modulation (QAM). This system provides high data transmission rate without reducing spectral efficiency and overcomes the adverse effects of frequency-selective Rayleigh fading by applying a minimum mean square error (MMSE) equalizer at the receiver. Then we deploy the decode-and-forward cooperative communications protocol in the novel system to allow single-antenna users to obtain the powerful benefits of multi-antenna systems. Monte-Carlo simulations are also performed to evaluate the performance of the proposed system

Keywords

Monte Carlo methods; OFDM modulation; Rayleigh channels; data communication; decoding; least mean squares methods; quadrature amplitude modulation; spread spectrum communication; MMSE; McM; Monte-Carlo simulation; OFDM; QAM; data transmission; decode-forward cooperative communications protocol; frequency-selective Rayleigh fading; minimum mean square error equalizer; multiantenna systems; multicode spread spectrum modulation technique; orthogonal frequency division multiplexing; quadrature amplitude modulation; receiver; Amplitude modulation; Data communication; Decoding; Equalizers; Mean square error methods; OFDM modulation; Protocols; Quadrature amplitude modulation; Rayleigh channels; Spread spectrum communication;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 2006. 2006 IEEE Region 10 Conference

Conference_Location

Hong Kong

Print_ISBN

1-4244-0548-3

Electronic_ISBN

1-4244-0549-1

Type

conf

DOI

10.1109/TENCON.2006.343826

Filename

4142501