A novel covert communication system based on symmetric ${\alpha}$-stable distribution
نویسندگان
چکیده
منابع مشابه
Study on Airspace Covert Communication Algorithm of Covert Communication System
Based on the security of information transmission through network in the information society, the paper puts forward covert communication technology which is more reliable than the prior encryption algorithm, analyzes channel covertness and information hiding of covert communication technology based on spread-spectrum communication technology, and establishes a covert communication system inclu...
متن کاملReceivers for Digital Communication in Symmetric Alpha Stable Noise
Wireless communication devices in embedded computational platforms have become increasingly common. As these device become more compact, radio frequency interference (RFI) from other subsystems, such as clocks and buses, becomes more severe and degrades the performance of the communication systems. The interference from these components is impulsive in nature, therefore standard symbol detectio...
متن کاملAutomatic Object Detection Based on Adaptive Background Subtraction Using Symmetric Alpha Stable Distribution
Automatic detection of objects is critical to video tracking systems. One of the simplest techniques for detection is background subtraction (BS). BS refers to the process of segmenting moving regions from image sequences. The BS process involves building a model of the background and extracting regions of the foreground (moving objects). In this paper, we propose an extended cluster BS (CBS) t...
متن کاملSymmetric alpha-stable filter theory
Symmetric -Stable (S S) processes are used to model impulsive noise. Wiener lter theory is generally not meaningful in S S environments because the expectations may be unbounded. To develop a lter theory for linear nite impulse response systems with independent identically distributed S S inputs, we propose median orthogonality as a linear lter criterion, present a generalized Wiener-Hopf solut...
متن کاملSOVA decoding in Symmetric Alpha-Stable Noise
Soft-Output Viterbi Algorithm (SOVA) is one type of recovery memory-less Markov Chain and is used widely to decode convolutional codes. Fundamentally, conventional SOVA is designed on the basis of Maximum A-Posteriori Probability (APP) with the assumption of normal distribution. Therefore, conventional SOVA fails miserably in the presence of symmetric alpha stable noise S S α which is one form ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: SCIENTIA SINICA Informationis
سال: 2017
ISSN: 1674-7267
DOI: 10.1360/n112016-00166