Detection/Decoding over Channels with Synchronization Errors and Inter-Symbol Interference

被引：0

作者：

Wang, Feng ^{[1
]}

Duman, Tolga M. ^{[1
]}

机构：

[1] Arizona State Univ, Sch Elect Comp & Energy Engn, Tempe, AZ 85287 USA

来源：

2012 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC) | 2012年

关键词：

PATTERNED MEDIA STORAGE; INSERTIONS; DELETIONS; MODEL;

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

We consider coding schemes over an independent and identically distributed (i.i.d.) insertion/deletion channel with inter-symbol interference (ISI). The idea is based on a serial concatenation of a low-density parity check (LDPC) code with a marker code. First, we design a maximum-a-posteriori (MAP) detector operating at the bit level which jointly achieves synchronization for the insertion/deletion channel (with the help of the marker code) and equalization for the ISI channel. Utilizing this MAP detector together with an LDPC code with powerful error-correction capabilities, we demonstrate that reliable transmission over this channel is feasible. Then, we consider low-complexity channel detection algorithms needed for proper synchronization/equalization. Specifically, we use separate synchronization and equalization algorithms instead of joint detection and also explore the performance of M- and T-algorithms implemented as low complexity soft output channel detectors. Such schemes greatly reduce the amount of computations needed at the cost of some performance loss as illustrated via a set of simulation results.

引用

页数：5

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