Subblock processing in MMSE-FDE under fast fading environments

被引：14

作者：

Kambara, Keiichi ^{[1
]}

Nishimoto, Hiroshi ^{[1
]}

Nishimura, Toshihiko ^{[1
]}

Ohgane, Takeo ^{[1
]}

Ogawa, Yasutaka ^{[1
]}

机构：

[1] Hokkaido Univ, Sch Informat Sci & Technol, Sapporo, Hokkaido 0600814, Japan

来源：

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS | 2008年 / 26卷 / 02期

基金：

日本学术振兴会;

关键词：

fast fading; single carrier transmission; MMSE-FDE; unique word; subblock processing;

D O I：

10.1109/JSAC.2008.080212

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Frequency domain equalization (FDE) has been studied for reducing inter-symbol interference (ISI) caused by frequency selective fading in single carrier systems. When a high-mobility terminal exists in the system, the channel state may change within a DFT block. Then, the ISI reduction performance of FDE degrades since cyclicity of the channel matrix is lost. We propose to divide a received data block into multiple subblocks to decrease the channel transition within the DFT block in fast fading environments. Also, to satisfy periodicity of the received signal in each subblock, we introduce a pseudo cyclic prefix technique. The results of numerical analysis show that the proposed method can effectively decrease the error floor in fast fading environments.

引用

页码：359 / 365

页数：7

共 10 条

[1] ANALYSIS AND SIMULATION OF A DIGITAL MOBILE CHANNEL USING ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING [J].

CIMINI, LJ .

IEEE TRANSACTIONS ON COMMUNICATIONS, 1985, 33 (07) :665-675

[2]

Coon J, 2006, IEEE T WIREL COMMUN, V5, P1488, DOI 10.1109/TWC.2006.04388

[3] Training sequence versus cyclic prefix - A new look on single carrier communication [J].

Deneire, L ;

Gyselinckx, B ;

Engels, M .

IEEE COMMUNICATIONS LETTERS, 2001, 5 (07) :292-294

[4] Frequency domain equalization for single-carrier broadband wireless systems [J].

Falconer, D ;

Ariyavisitakul, SL ;

Benyamin-Seeyar, A ;

Eidson, B .

IEEE COMMUNICATIONS MAGAZINE, 2002, 40 (04) :58-66

[5]

Hwang TW, 2003, IEEE VTS VEH TECHNOL, P1841

[6]

OGAWA K, 2003, P VTC2003 FALL, V2, P1523

[7] On the existence and construction of good codes with low peak-to-average power ratios [J].

Paterson, KG ;

Tarokh, V .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2000, 46 (06) :1974-1987

[8]

Press W. H., 1992, NUMERICAL RECIPES C, V2nd ed., P994

[9]

STAMOULIS SN, 2002, IEEE T SIGNAL PROCES, V50, P2415

[10]

Witschnig H, 2002, 13TH IEEE INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, VOL 1-5, PROCEEDINGS, P824, DOI 10.1109/PIMRC.2002.1047337

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