Decoding performance of binary and non-binary LDPC codes for IEEE 802.11n standard

2012 ◽  
Author(s):  
P. Venkateshwari ◽  
M. Anbuselvi
Keyword(s):  
Ldpc Codes ◽  
Ieee 802.11N

Performance of IEEE 802.11n LDPC codes

2017 ◽  
Vol 11 (22) ◽  
pp. 1065-1073
Author(s):  
Yenny Alexandra Avendano Martinez ◽  
Octavio Jose Salcedo Parra ◽  
Giovanny Mauricio Tarazona Bermudez
Keyword(s):  
Error Detection ◽  
High Performance ◽  
Ldpc Codes ◽  
Low Density ◽  
Parity Check ◽  
Ieee 802.11N ◽  
Noise Environment ◽  
Low Density Parity Check ◽  
Parity Check Codes

LDPC (Low Density Parity Check Codes) is a set of algorithms that send, receive and correct in a noise environment, frames transmitted in a LAN environment. This article demonstrates the high performance of the LDPC in environments of noise, compared to the CRC error detection code highly currently implemented, in this way the efficiency of LDPC is shown specifically over the 802. 11n protocol.

scholarly journals A Hybrid Statistical and Prioritised Unequal Error Protection Scheme for IEEE 802.11n LDPC Codes

2017 ◽  
Vol 8 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Tulsi Pawan Fowdur ◽  
Madhavsingh Indoonundon
Keyword(s):  
Ldpc Codes ◽  
Ldpc Code ◽  
Error Correcting Codes ◽  
Code Word ◽  
Unequal Error Protection ◽  
Node Degree ◽  
Error Protection ◽  
Ieee 802.11N ◽  
Protection Scheme ◽  
Power Region

The combination of powerful error correcting codes such as (LDPC) codes and Quadrature Amplitude Modulation (QAM) has been widely deployed in wireless communication standards such as the IEEE 802.11n and DVB-T2. Recently, several Unequal Error Protection schemes which exploit non-uniform degree distribution of bit nodes in irregular LDPC codes have been proposed. In parallel, schemes that exploit the inherent UEP characteristics of the QAM constellation have also been developed. In this paper, a hybrid UEP scheme is proposed for LDPC codes with QAM. The scheme uses statistical distribution of source symbols to map the systematic bits of the LDPC encoded symbols to the QAM constellation. Essentially, systematic symbols having highest probabilities of occurrence are mapped onto the low power region of the QAM constellation and those with a low probability of occurrence are mapped onto the high power region. The decrease in overall transmission power allows for an increased spacing between the QAM constellation points. Additionally, the scheme uses the distribution of the bit node degree of the LDPC code-word to map the parity bits having the highest degree onto prioritised QAM constellation points. Simulations with the IEEE 802.11n LDPC codes revealed that the proposed scheme can provide gains of up to 0.91 dB in Eb/No compared with other UEP schemes for a range of Bit Error Rate (BER) values

A low power multi-rate decoder hardware for IEEE 802.11n LDPC codes

2012 ◽  
Vol 36 (3) ◽  
pp. 159-166 ◽  
Author(s):  
Merve Peyic ◽  
Hakan Baba ◽  
Erdem Guleyuboglu ◽  
Ilker Hamzaoglu ◽  
Mehmet Keskinoz
Keyword(s):  
Low Power ◽  
Ldpc Codes ◽  
Ieee 802.11N

7.7Gbps encoder design for IEEE 802.11n/ac QC-LDPC codes

2012 ◽  
Author(s):  
Yongmin Jung ◽  
Chulho Chung ◽  
Jaeseok Kim ◽  
Yunho Jung
Keyword(s):  
Ldpc Codes ◽  
Ieee 802.11N
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