Performance Improvement of WiMAX (IEEE 802.16d) Using Combined RS–CC Forward Error Channel Coding Technique

2018 ◽  
pp. 11-18
Author(s):  
Arun Agarwal ◽  
Saurabh N. Mehta
Keyword(s):  
Performance Improvement ◽  
Channel Coding ◽  
Forward Error

scholarly journals Energy Efficiency of a Decode-and-Forward Multiple-Relay Network with Rate Adaptive LDPC Codes

Sensors ◽  
2019 ◽  
Vol 19 (21) ◽  
pp. 4793 ◽  
Author(s):  
Bushra Bashir Chaoudhry ◽  
Syed Ali Hassan ◽  
Joachim Speidel ◽  
Haejoon Jung
Keyword(s):  
Energy Efficiency ◽  
Channel Coding ◽  
Forward Error Correction ◽  
Ldpc Codes ◽  
Maximum Energy ◽  
Cooperative Transmission ◽  
Relay Network ◽  
Decode And Forward ◽  
Forward Error ◽  
Multiple Relay

This paper presents cooperative transmission (CT), where multiple relays are used to achieve array and diversity gains, as an enabling technology for Internet of Things (IoT) networks with hardware-limited devices. We investigate a channel coding aided decode-and-forward (DF) relaying network, considering a two-hop multiple-relay network, where the data transmission between the source and the destination is realized with the help of DF relays. Low density parity check (LDPC) codes are adopted as forward error correction (FEC) codes to encode and decode the data both at the source and relays. We consider both fixed and variable code rates depending upon the quality-of-service (QoS) provisioning such as spectral efficiency and maximum energy efficiency. Furthermore, an optimal power allocation scheme is studied for the cooperative system under the energy efficiency constraint. We present the simulation results of our proposed scheme, compared with conventional methods, which show that if decoupled code rates are used on both hops then a trade-off has to be maintained between system complexity, transmission delay, and bit error rate (BER).

BER performance improvement by forward error correcting code in 5 Gbit/s 9000 km EDFA transmission system

1994 ◽  
Vol 30 (9) ◽  
pp. 718-719 ◽  
Author(s):  
S. Yamamoto ◽  
Y.C. Chen ◽  
H. Takahira ◽  
M. Tanaka ◽  
E. Shibano
Keyword(s):  
Performance Improvement ◽  
Error Correcting Code ◽  
Transmission System ◽  
Forward Error ◽  
Ber Performance

scholarly journals Channel Coding in Optical Communication Systems

2016 ◽  
Vol 4 (2) ◽  
pp. 1-5
Author(s):  
Viktor Durcek ◽  
◽  
Michal Kuba ◽  
Milan Dado
Keyword(s):  
Error Correction ◽  
Optical Networks ◽  
Optical Communication ◽  
Channel Coding ◽  
Communication Systems ◽  
High Speed ◽  
Forward Error Correction ◽  
Error Correcting Codes ◽  
Optical Communication Systems ◽  
Forward Error

In this paper, an overview of various types of error-correcting codes is present. Three generations of forward error correction methods used in optical communication systems are listed and described. Forward error correction schemes proposed for use in future high-speed optical networks can be found in the third generation of codes.

scholarly journals Robust IPTV Delivery with Adaptive Rateless Coding over a Mobile WiMAX Channel

2011 ◽  
Vol 2011 ◽  
pp. 1-11 ◽  
Author(s):  
Laith Al-Jobouri ◽  
Martin Fleury ◽  
Mohammad Ghanbari
Keyword(s):  
Channel Coding ◽  
Forward Error Correction ◽  
Content Management ◽  
Mobile Wimax ◽  
Application Layer ◽  
Ieee 802.16E ◽  
Coding Schemes ◽  
Redundant Data ◽  
Trade Offs ◽  
Forward Error

As intelligent content management of IPTV moves popular material nearer to the end-user, application-layer channel coding schemes, involving the retransmission of extra redundant data, become attractive as a result of the reduced latency. Application-layer, adaptive rateless channel coding is exploited in this paper's scheme to reconstruct streamed video across an IEEE 802.16e (mobile WiMAX) channel. The paper concentrates on the trade-offs in implementing the scheme, showing that exact calculation of the redundant data has the potential to reduce the forward error correction bit-rate overhead. To reduce delay, an appropriate compression rate should also be selected.

Performance improvement of spatial watermarking through efficient nonbinary channel coding

2001 ◽  
Author(s):  
Tomas Brandao ◽  
Maria P. Queluz ◽  
Antonio Rodrigues
Keyword(s):  
Performance Improvement ◽  
Channel Coding
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