منابع مشابه
Hiding Encrypted Data in Audio Wave File
Today at a time of globalization in which the whole planet become look like a small village and transport information through it with a push button in keyboard and at a time of huge evaluation in the digital world and for the millions of users to international net and some application importance, let us to use both cryptography and steganography as a means to protect the information from hackin...
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In this paper a robust frame based audio watermarking scheme using Discrete Wavelet Transformation (DWT) is presented. In the proposed approach traditional watermarking is combined with cryptography to make the scheme more secure. Instead of embedding the watermark bits in consecutive frames, a pseudo-random sequence driven by a secret key is generated using cellular automata that provide the p...
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Encoded information based on synchronization of coupled chaotic Nd:YAG lasers in master-slave configuration is numerically studied. Encoding, transmission, and decoding of information in optical chaotic communication with a single channel is presented. We analyze the robustness of the encrypted audio transmission in a channel noise. In order to illustrate this synchronization robustness, we pre...
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Traditional design rules for cellular networks are not directly applicable to code division multiple access (CDMA) networks where intercell interference is not mitigated by cell placement and careful frequency planning. For transmission quality requirements, a minimum signal-to-interference ratio (SIR) must be achieved. The base-station location, its pilot-signal power (which determines the siz...
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A radio planning methodology for IS-95 based CDMA networks is presented. Inherent to the planning methodology i s a comprehensive performance characterization of both the forward and reverse links over a wide array of channel conditions. In addition, the link margin requirements under log-normal shadowing are addressed. Effects due to loading, Erlang variations and voice activity, soft and soft...
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ژورنال
عنوان ژورنال: Journal of Information Security
سال: 2014
ISSN: 2153-1234,2153-1242
DOI: 10.4236/jis.2014.53008