Results 91 to 100 of about 1,776 (214)

Energy-Efficient Relay Aided Ad Hoc Networks Using Iteratively Detected Irregular Convolutional Coded, Unity-Rate Coded and Space-Time Trellis Coded Transceivers [PDF]

, 2011
The nodes of ad hoc networks are typically batterypowered, hence requiring the employment of energy-efficient schemes. Near-capacity coding schemes allow a single link to communicate using the lowest possible transmit power, while achieving a low Frame ...
Soon Xin Ng, Zuo, Jing, Ng, Soonxin, Jing Zuo, Nguyen, Hung, Hung Viet Nguyen, Hanzo, Lajos, Lajos Hanzo   +7 more
core   +1 more source

Variable Length Space Time Coded Modulation [PDF]

, 2005
A Variable Length Space Time Coded Modulation (VL-STCM) scheme capable of simultaneously providing coding, multiplexing and diversity gains is proposed.
Ng, S.X., Wang, J., Yang, L-L., Hanzo, L.   +3 more
core  

Concatenated Space Time Block Codes and TCM, Turbo TCM Convolutional as well as Turbo Codes [PDF]

, 2000
Space-time block codes provide substantial diversity advantages for multiple transmit antenna systems at a low decoding complexity. In this paper, we concatenate space-time codes with Convolutional Codes (CC), Turbo Convolutional codes (TC), Turbo BCH ...
Pliquett, J., Yeap, B.L., Liew, T.H., Yang, L-L., Hanzo, L.   +4 more
core  

Burst-by-burst Adaptive Joint-Detection CDMA/H.26L Based Wireless Video Telephony using TTCM and LDPC Codes [PDF]

, 2003
A low bit-rate video coding techniques using the H.26L standard codec for robust transmission in mobile multimedia environments are presented. For the sake of achieving error resilience, the source codec has to make provisions for error detection ...
Ng, S.X., F. Guo, Chung, J.Y., J.Y. Chung, S.X. Ng, L. Hanzo, Hanzo, L., Guo, F.   +7 more
core   +1 more source

Performance of OFDM: FSO Communication System with Hybrid Channel Codes during Weak Turbulence

Journal of Computer Networks and Communications, 2019
The performance of orthogonal frequency division multiplexing- (OFDM-) based free-space optics (FSO) depends on various parameters such as number of subcarriers, base band modulation, nature of laser beam, turbulence modelling, and much more.
Ritu Gupta, Tara Singh Kamal, Preeti Singh   +2 more
doaj   +1 more source

Helper Data Schemes for Coded Modulation and Shaping in Physical Unclonable Functions

IEEE Open Journal of the Communications Society
We consider the generation and utilization of helper data for physical unclonable functions (PUFs) that provide real-valued, Gaussian distributed readout symbols.
Robert F. H. Fischer
doaj   +1 more source

Design and Implementation of a Low-Complexity Multi-h CPM Receiver with Linear Phase Approximation Synchronization Algorithm. [PDF]

Entropy (Basel), 2023
Wang L, Wen H, Wu X, Song Q.
europepmc   +1 more source

Zernike Moment-Based Spatial Image Steganography Resisting Scaling Attack and Statistic Detection

IEEE Access, 2019
The mainstream adaptive steganography algorithm is difficult to resist scaling attack, and the anti-detection performance of the algorithm based on quantization index modulation is not high enough.
Yue Zhang, Xiangyang Luo, Yanqing Guo, Chuan Qin, Fenlin Liu   +4 more
doaj   +1 more source

Low Complexity Adaptive Detection of Short CPM Bursts for Internet of Things in 6G. [PDF]

Sensors (Basel), 2022
Pan Z, Wang H, Zhang B, Guo D.
europepmc   +1 more source

Sphere-Packing Modulated Space-Time Coding Using Non-Binary LDPC-Coded Iterative-Detection [PDF]

, 2008
A recently proposed Space-Time Block Coding (STBC) signal construction method that combines orthogonal design with sphere packing, referred to here as (STBC-SP), has shown useful performance improvements over Alamouti’s conventional orthogonal design. In
Alamri, Osamah, F. Guo, Ng, Soon, S. X. Ng, O. Alamri, S. Zummo, L. Hanzo, Guo, Feng, Zummo, S, Hanzo, Lajos   +9 more
core   +1 more source