On decoding and equalization of multidimensional trellis-coded OFDM systems

被引：0
|
作者：
Liu, PC [1 ]
Chen, KC [1 ]
机构：
[1] Natl Taiwan Univ, Grad Inst Commun Engn, Taipei 10764, Taiwan
来源：
57TH IEEE VEHICULAR TECHNOLOGY CONFERENCE, VTC 2003-SPRING, VOLS 1-4, PROCEEDINGS | 2003年
关键词：
combine; decoding; equalization; intersymbol interferene channel; multidimension; MLSE; OFDM; PDFD; RSSE; set partitioning principle; trellis-coded modulation; TCM;
D O I：
暂无
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：
In this paper, we develop an effective method, Multicarrier Parallel Decision Feedback Decoding (MC-PDFD), to combat the residual ISI (intersymbol interference) effect in OFDM systems employing multi-dimensional trellis-coded modulation, (TCM) scheme. The proposed method operates on reduced-state trellises with modified branch metric in order to accommodate OFDM and other multicarrier communications. MC-PDFD: combines the tasks of trellis decoding and equalization, altogether and removes the residual ISI simultaneously with decoding process. Simulation results show that MC-PDFD works well in different channel conditions with perfect channel information and degrades slightly with non-perfect channel. information.
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页码：2551 / 2555
页数：5
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