Cascading polar coding and LT coding for radar and sonar networks
Cascading polar coding and LT coding for radar and sonar networks
复制标题
用于雷达和声纳网络的级联极坐标编码和 LT 编码
DOI:
10.1186/s13638-016-0748-4
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发表时间:
2016-10
影响因子:
2.6
通讯作者:
Yiuming Li
中科院分区:
文献类型:
--
作者:
Liping Jin;Yiuming Li
In radar and sonar networks, heavy clutter and noise have generated strong impairments to information transmission and processing. Coding techniques have been widely used to cope with various channel noises and thereby to improve transmission performance. In the study, we investigate a novel cascaded coding scheme for systems operating in adverse electromagnetic environments, e.g., underwater acoustic communications (UAC), where the impulsive noise will be inevitable and the bit error ratio (BER) of receiver will be deteriorated greatly. Our cascaded encoding scheme employs the polar code as inner code while the Luby transform (LT) code as outer code. Inspired on a novel conception of channel polarization, the polar code uses a group of idea sub-channels to carry the useful information, while let other bad sub-channels bear no information. By cascading the outer LT code which accomplishes some parity check to the input of inner code, the performance of inner polar code is improved, as the decoding of polar code relies on a successive cancelation technique which is relatively sensitive to initial input. Error correcting performance of the new cascaded code is studied under impulsive noise characterized by a Middleton Class-A model. Simulations validate the proposed cascaded coding scheme. Compared with the popular low-density parity check (LDPC) code, the cascaded scheme can significantly improve the BER performance in the presence of impulsive interference, which also surpasses another cascaded code that is proved to be effective in impulsive noise channel, i.e., cascaded LDPC and LT coding scheme.
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影响因子:
4.4
作者:
M. Tlich;A. Zeddam;F. Moulin;F. Gauthier
通讯作者:
M. Tlich;A. Zeddam;F. Moulin;F. Gauthier
DOI:
10.1002/9780470740156
发表时间:
2006-01
期刊:
--
影响因子:
--
作者:
S. Vaseghi
通讯作者:
S. Vaseghi
影响因子:
--
作者:
A. Majumder;Jr. Caffery J
通讯作者:
A. Majumder;Jr. Caffery J
DOI:
--
发表时间:
2010
期刊:
Journal of Engineering Graphics
影响因子:
--
作者:
H. Yuanjun
通讯作者:
H. Yuanjun
DOI:
10.1109/milcom.2008.4753547
发表时间:
2008-11
期刊:
MILCOM 2008 - 2008 IEEE Military Communications Conference
影响因子:
--
作者:
S. Ahmed;H. Arslan
通讯作者:
S. Ahmed;H. Arslan