Improving Mobility in Wireless MAN

Konferenz: PIMRC 2005 - 16th Annual IEEE International Symposium on Personal Indoor and Mobile Radio Communications
11.09.2005 - 14.09.2005 in Berlin, Germany

Tagungsband: PIMRC 2005

Seiten: 5Sprache: EnglischTyp: PDF

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Lozhkin, Alexander N. (Fujitsu LTD., YRP Center 5, 3-4, Hikari-no-Oka, Yokosuka 239-0847, Japan)

Influence of Doppler shift and ICI are the focus of the paper. Newly proposed systems must provide a high mobility level compare with 802.11 standard and support low subcarrier frequency spacing. Moreover, for the higher carrier frequencies and mobile speeds, the influence for Doppler shifts will be large and therefore, the influence of ICI becomes severer. BER performances in such multipath and multiple Doppler shift environment obtained with Decision Feedback Equalizer (DFE) and a newly proposed Turbo Equalizer (TE) estimated with the aid of computer simulation. The proposed TE provides better ICI suppression than does the DFE at the same level of complexity.