S.Kalaivani 1,
R.Anitha 2
1PG Student STET Women’s college, mannargudi
2Professor of CS department, STET Women’s college, mannargudi
Data hiding and extraction schemes
are increasing in today’s communication world due to rapid
increment of data tracking and tampering attacks. So we need an efficient and
robust data hiding schemes to protect from these attacks. In this project the
blindly extraction technique is considered. Blindly extraction means the
original host and the embedding. Cognitive radio technologies are being
developed which allow heterogeneous systems to share spectrum access while
minimizing interference to improve the overall efficiency of spectrum usage.
Interference minimization requires cognitive radio receivers to be able to
detect the presence of all other systems competing for spectrum usage, a
process often termed "spectrum sensing". This paper focuses on the
kernel function of spectrum sensing: blind interference detection from a
single, strictly time-limited, received data vector. Recent research has
identified shortcomings in the operation of classical blind interference
detection techniques such as energy detection and radiometry. Information hiding technique is a new kind
of secret communication technology. The majority of today’s information hiding
systems uses multimedia objects like audio. Embedding secret messages in
digital sound is usually a more difficult process.
