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Now showing items 51-60 of 124
High-Rate And Information-Lossless Space-Time Block Codes From Crossed-Product Algebras
(2007-10-23)
It is well known that communication systems employing multiple transmit and multiple receive antennas provide high data rates along with increased reliability. It has been shown that coding across both spatial and temporal ...
Coding For Multi-Antenna Wireless Systems And Wireless Relay Networks
(2009-03-04)
Communication over a wireless channel is a challenging task because of the inherent fading effects. Any wireless communication system employs some form of diversity improving techniques in order to improve the reliability ...
Improved GMM-Based Classification Of Music Instrument Sounds
(2009-03-19)
This thesis concerns with the recognition of music instruments from isolated notes. Music instrument recognition is a relatively nascent problem fast gaining importance not only because of the academic value the problem ...
Blind Detection Techniques For Spread Spectrum Audio Watermarking
(2009-08-13)
In spreads pectrum (SS)watermarking of audio signals, since the watermark acts as an additive noise to the host audio signal, the most important challenge is to maintain perceptual transparency. Human perception is a very ...
Design And Performance Analysis Of A New Family Of Wavelength/Time Codes For Fiber-Optic CDMA Networks
(2007-11-16)
Asynchronous multiplexing schemes are efficient than synchronous schemes, in a
bursty traffic environment of multiple access local area network (LAN), as fixed
bandwidth is not allocated among the users and there is no ...
Phase Sensitive Estimation Of Fluorescence Lifetime For Fiber Optic Biosensors
(Indian Institute of Science, 2005-10-04)
Fluorescence lifetime determination and allied studies find application in spectroscopy in general and fiber optic biosensors in particular. Instruments and sensors cited in literature however use open loop, intensity based ...
Scheduling For Stable And Reliable Communication Over Multiaccess Channels And Degraded Broadcast Channels
(2008-09-26)
Information-theoretic arguments focus on modeling the reliability of information transmission, assuming availability of infinite data at sources, thus ignoring randomness in message generation times at the respective ...
Low Correlation Sequences Over AM-PSK And QAM Constellations
(2009-08-13)
Direct-Sequence Code Division Multiple Access (DS-CDMA), over the last few years, has become a popular technique and finds a place in many modern communication systems. The performance of this technique is closely linked ...
Low Power LO Generation Based On Frequency Multiplication Technique
(2008-08-27)
TO achieve high level of integration in order to reduce cost, heterodyne architecture has made way for low-IF and zero-IF (direct conversion) receiver architectures. However, a very serious issue in implementing both zero ...
Energy Efficient Scheduling Of Sensing Activity In Wireless Sensor Networks Using Information Coverage
(2009-08-19)
Network lifetime is a key issue in wireless sensor networks where sensor nodes, distributed typically in remote/hostile sensing areas, are powered by finite energy batteries which are not easily replaced/recharged. Depletion ...

