Results 11 to 20 of about 2,673,207 (193)
Survey of Turbo, LDPC, and Polar Decoder ASIC Implementations
Channel coding may be viewed as the best-informed and most potent component of cellular communication systems, which is used for correcting the transmission errors inflicted by noise, interference, and fading.
Shuai Shao +6 more
semanticscholar +3 more sources
Data Reconciliation Method in Satellite Quantum Key Distribution [PDF]
Quantum key distribution applies fundamental laws of quantum physics to guarantee secure communication.Few number of information exchanges is the key of satellite-based quantum key distribution.According to the characteristics and requirements of data ...
ZHONG Xianfeng,TANG Yu,JIN Biao,WU Teng,LI Fengzhi,LIU Weiyue
doaj +1 more source
Capacity-Approaching Non-Binary Turbo Codes: A Hybrid Design Based on EXIT Charts and Union Bounds
In this paper, we introduce a novel design approach for capacity-approaching non-binary turbo codes. There are two important factors that impact the performance of turbo codes in general: 1) the convergence behavior of iterative decoding in the low ...
Toshiki Matsumine, Hideki Ochiai
doaj +1 more source
Protograph-Based Interleavers for Punctured Turbo Codes
A method to design efficient puncture-constrained interleavers for turbo codes (TCs) is introduced. Resulting TCs profit from a joint optimization of puncturing pattern and interleaver to achieve an improved error rate performance.
Ronald Garzón-Bohórquez +2 more
semanticscholar +1 more source
Low-complexity decoders for non-binary turbo codes
Following the increasing interest in non-binary coding schemes, turbo codes over different Galois fields have started to be considered recently. While showing improved performance when compared to their binary counterparts, the decoding complexity of ...
Rami Klaimi +3 more
semanticscholar +1 more source
25 Years of Turbo Codes: From Mb/s to beyond 100 Gb/s
In this paper, we demonstrate how the development of parallel hardware architectures for turbo decoding can be continued to achieve a throughput of more than 100 Gb/s. A new, fully pipelined architecture shows better error correcting performance for high
Stefan Weithoffer +4 more
semanticscholar +1 more source
Coded modulation scheme employing turbo codes
The authors present a turbo coding scheme for bandwidth-efficient modulation that outperforms turbo coding with Gray mapping by employing Ungerboeck codes as component codes. The scheme can be decoded iteratively and achieves very good bit error rates at low signal to noise ratios after a small number of iterations. 8PSK is used as an example, although
Robertson, P., Wörz, T.
openaire +3 more sources
Turbo product codes (TPCs) are an attractive solution to improve link budgets and reduce systems costs by relaxing the requirements on expensive optical devices in high capacity optical transport systems.
Ramesh Pyndiah +4 more
doaj +2 more sources
Sum-α Stopping Criterion for Turbo Decoding [PDF]
In this article, we propose a new stopping criterion for turbo codes. This criterion is based on the behaviour of the probabilistic values alpha 'α' calculated in the forward recursion during turbo decoding. We called this criterion Sum-α. The simulation
Aissa Ouardi
doaj +1 more source
A MODIFIED UNEQUAL POWER ALLOCATION (UPA) SCHEME FOR PERFORMANCE ENHANCEMENT IN BIT REPETITION TURBO CODES IN HIGH SPEED DOWNLINK PACKET ACCESS (HSDPA) SYSTEM [PDF]
In this paper, a modified optimal power allocation scheme for different bits in turbo encoder has been proposed to improve the performance of Turbo Codes system in High Speed Downlink Packet Access (HSDPA) service. In a typical turbo code in HSDPA system,
B. BALAMURALITHARA
doaj

