Title :
Channel noise robust power optimized precoder for ISI channel with minimal complexity equalizer
Author :
Kwan, Man-Wai ; Kok, Chi-Wah
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, China
Abstract :
A systematic method to design power optimized FIR precoder for a special class of ISI free noise robust precoder-equalizer structure is presented in this paper. The proposed equalizer has the lowest implementation complexity in theory, because the equalizer consists of a simple sampler only. It is also because of this simple equalizer, the proposed precoder-equalizer pair is robust to channel noise. The presented design method results in minimal power precoder with a given order such that the system achieve ISI free MMSE communication in ISI AWGN channel with a given SNR. Simulation results are presented to illustrate the performance of the proposed precoder-equalizer structure and compared it with that of the general linear precoder structure.
Keywords :
AWGN channels; FIR filters; encoding; equalisers; fading channels; intersymbol interference; least mean squares methods; multipath channels; noise; ISI AWGN channel; ISI channel; ISI free MMSE communication; ISI free equalizer structure; SNR; broadband communication systems; channel noise robust power optimized precoder; design method; general linear precoder structure; implementation complexity; intersymbol interference; minimal complexity equalizer; multipath fading channels; power optimized FIR precoder; precoder-equalizer pair; precoding filter; sampler; simulation results; AWGN channels; Additive white noise; Design methodology; Design optimization; Equalizers; Finite impulse response filter; Gaussian noise; Intersymbol interference; Noise robustness; Signal to noise ratio;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2002. The 13th IEEE International Symposium on
Print_ISBN :
0-7803-7589-0
DOI :
10.1109/PIMRC.2002.1047361
