Results 101 to 110 of about 2,457,220 (279)
Mimic turbo compiled code structure for wireless communication systems
This paper describes a turbo compiled code structure that introduces the idea of dynamic heterogeneous redundancy. Abstract Turbo codes play a crucial role in wireless communication systems, and their compiled code structures are key factors affecting the performance of the entire communication system.
Yuchen Shi+11 more
wiley +1 more source
Binary Representaion for Non-binary LDPC Code with Decoder Design [PDF]
The equivalent binary parity check matrices for the binary images of the cycle-free non-binary LDPC codes have numerous bit-level cycles. In this paper, we show how to transform these binary parity check matrices into their cycle-free forms. It is shown that the proposed methodology can be adopted not only for the binary images of non-binary LDPC codes
arxiv
Finite length analysis of LDPC codes [PDF]
In this paper, we study the performance of finite-length LDPC codes in the waterfall region. We propose an algorithm to predict the error performance of finite-length LDPC codes over various binary memoryless channels. Through numerical results, we find that our technique gives better performance prediction compared to existing techniques.
Gottfried Lechner+2 more
openaire +4 more sources
Coded Cooperation for Multiway Relaying in Wireless Sensor Networks
Wireless sensor networks have been considered as an enabling technology for constructing smart cities. One important feature of wireless sensor networks is that the sensor nodes collaborate in some manner for communications.
Zhongwei Si, Junyang Ma, Ragnar Thobaben
doaj +1 more source
Min-Max decoding for non binary LDPC codes
with the increase in requirements on fiber-optical communication system by people, transmission quantity has been increased. In order to guarantee quick and effective fiber-optical communication, people have to use LDPC codes to implement correction ...
Danfeng Zhao, Jiahui Meng, Hai Tian
semanticscholar +1 more source
A Survey on Protograph LDPC Codes and Their Applications
Low-density parity-check (LDPC) codes have attracted much attention over the past two decades since they can asymptotically approach the Shannon capacity in a variety of data transmission and storage scenarios.
Yi Fang, G. Bi, Y. Guan, F. Lau
semanticscholar +1 more source
This paper undertakes a review and analysis of advanced channel coding techniques with the aim of their scalability towards B5G/6G networks scenario. A comparative study is presented for channel coding candidates of futuristic networks. Concatenated and derived codes of convolutional, polar, LDPC, Rateless, and Space‐time coding schemes are reviewed ...
Abhilasha Gautam+2 more
wiley +1 more source
Deriving Good LDPC Convolutional Codes from LDPC Block Codes [PDF]
Low-density parity-check (LDPC) convolutional codes are capable of achieving excellent performance with low encoding and decoding complexity. In this paper we discuss several graph-cover-based methods for deriving families of time-invariant and time-varying LDPC convolutional codes from LDPC block codes and show how earlier proposed LDPC convolutional ...
arxiv
Design of LDPC Codes: A Survey and New Results
This survey paper provides fundamentals in the design of LDPC codes. To provide a target for the code designer, we first summarize the EXIT chart technique for determining (near-)optimal degree distributions for LDPC code ensembles.
G. Liva+5 more
semanticscholar +1 more source
End‐to‐end demonstration for CubeSatellite quantum key distribution
The feasibility of satellite‐based quantum key exchange is investigated using low‐cost compact nano‐satellites. The authors demonstrate the first prototype of system level quantum key distribution aimed at the Cube satellite scenario. It consists of a transmitter payload, a ground receiver and simulated free space channel to verify the timing and ...
Peide Zhang+5 more
wiley +1 more source