MMSE weight for single-carrier overlap FDE

Author

Obara, Tatsunori ; Adachi, Fumiyuki

Author_Institution

Dept. of Electr. & Commun. Eng., Tohoku Univ., Sendai, Japan

fYear

2011

fDate

2-5 Oct. 2011

Firstpage

168

Lastpage

172

Abstract

Overlap frequency-domain equalization (FDE) requires no cyclic prefix (CP) insertion. In this paper, a new minimum mean square error (MMSE) weight is derived for the overlap FDE. In the previous paper, the MMSE weight for overlap FDE is derived by approximating the IBI as a white Gaussian variable. However, the IBI is an independent colored noise. We derive a new MMSE weight by taking into account this fact. We evaluate the bit error rate (BER) performance by computer simulation, and show that overlap FDE using the newly derived MMSE weight reduces the residual inter-symbol interference (ISI) more and hence, improves the BER performance.

Keywords

equalisers; error statistics; intersymbol interference; least mean squares methods; wireless channels; ISI; MMSE weight; bit error rate; cyclic prefix insertion; interblock interference; intersymbol interference; minimum mean square error; overlap frequency domain equalization; single carrier overlap FDE; white Gaussian variable; Bit error rate; Delay; Fading; Frequency domain analysis; Interference; Multiaccess communication; Noise; Frequency-selective fading channel; MMSE weight; overlap FDE; single-carrier transmission;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications (APCC), 2011 17th Asia-Pacific Conference on

Conference_Location

Sabah

Print_ISBN

978-1-4577-0389-8

Type

conf

DOI

10.1109/APCC.2011.6152798

Filename

6152798