Differential en/decoding using APSK signals for distributed MIMO

Author

Sun, Defu ; Tang, Youxi ; Shao, Shihai ; Li, Shaoqian

Author_Institution

Univ. of Electron. Sci. & Technol. of China, Chengdu

fYear

2007

fDate

Nov. 28 2007-Dec. 1 2007

Firstpage

514

Lastpage

517

Abstract

This paper proposes a differential modulation scheme using amplitude-phase shift keying (APSK) signals for distributed MIMO systems where neither the transmitter nor the receiver knows channel knowledge. The bandwidth efficiency of the proposed scheme is the same as V-BLAST scheme, and it can be applied to the systems with any number of transmit and receive antennas. Simulation results show that the bit error rate (BER) performance is not same in different channel propagation delay cases, and the optimum delay time for two transmit antenna system is about 0.6 T_s (where T_s is symbol period).

Keywords

MIMO communication; amplitude shift keying; bandwidth allocation; decoding; encoding; error statistics; phase shift keying; wireless channels; APSK signal; amplitude-phase shift keying; bandwidth efficiency; bit error rate; channel propagation delay; decoding; differential modulation; distributed MIMO system; encoding; receive antenna; transmit antenna; Amplitude modulation; Bandwidth; Bit error rate; Decoding; Delay effects; MIMO; Propagation delay; Receiving antennas; Transmitters; Transmitting antennas; Channel propagation delay; differential en/decoding; distributed multiple input multiple output; distributed transmit antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Signal Processing and Communication Systems, 2007. ISPACS 2007. International Symposium on

Conference_Location

Xiamen

Print_ISBN

978-1-4244-1447-5

Electronic_ISBN

978-1-4244-1447-5

Type

conf

DOI

10.1109/ISPACS.2007.4445937

Filename

4445937