Downlink Time Switched Transmit Diversity System with ARQ scheme

Author

Jeon, Cha-Eul ; Ma, Ri-A ; Baek, Jun-Ho ; Hwang, Seung-Hoon

Author_Institution

Dept. of Electron. Eng., Dongguk Univ., Seoul

Volume

2

fYear

2009

Firstpage

1106

Lastpage

1108

Abstract

In this paper, the authors investigate the performance of ARQ-aided downlink time switched transmit diversity (TSTD) in the WCDMA LCR-TDD system. The proposed TSTD system employs the ARQ scheme in which the receiver sends the acknowledgement signal (ACK or NACK signal) to the transmitter in order to predict the channel condition. Simulation results demonstrate that the proposed TSTD scheme yields about 4.5dB gain in terms of Eb/N0, compared with the conventional TSTD when the mobile speed is 3km/h and a frame error rate is 1%. In addition, the throughput gain of 6% is shown when Eb/N0=7dB.

Keywords

automatic repeat request; code division multiple access; diversity reception; time division multiplexing; ARQ; WCDMA LCR-TDD system; automatic repeat request; channel condition prediction; time switched transmit diversity; 3G mobile communication; Antenna feeds; Automatic repeat request; Data communication; Diversity methods; Downlink; Forward error correction; Multiaccess communication; Transmitters; Transmitting antennas; Automatic Repeat reQuest; Time Switched Transmit Diversity; Transmit Diversity;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Communication Technology, 2009. ICACT 2009. 11th International Conference on

ISSN

1738-9445

Print_ISBN

978-89-5519-138-7

Electronic_ISBN

1738-9445

Type

conf

Filename

4809607