The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Optical Holography has promising applications in latest imaging techniques and advancements. The outcome of optical holography is very sensitive and highly realistic three-dimensional image of any object of interest. Such images when reconstructed and viewed from different angle give raise to a different view of the image. We present this technique of optical fiber holography which involves transmission...
DDR memory used for data storage in space applications is subjected to different errors. These errors are caused by various perturbations such as cosmic radiations, solar radiations, galactic noise, electromagnetic radiations and extreme temperature in space, which can corrupt the data stored in the DDR memory. Error detection techniques allow detecting such errors, while error correction enables...
This paper analyzes the multiband sensing-time-adaptive joint detection cognitive radios framework. The framework optimizes secondary throughput while minimizing the interference to a wideband multiband primary communications system. The ranges are determined under which the problem can be categorized as a complex optimization one under real Gaussian channel conditions. Simulated results compare the...
An optimal adaptive multiband-sensing framework is used to jointly detect a wideband BPSK primary signal over multiple non-overlapping narrowband Gaussian channels so as to maximize the throughput in cognitive radio networks using cyclostationary detection scheme. Under some specific primary user and channel conditions the framework which appeared to be non-convex is explored to determine convexity...
An optimal multiband spectrum sensing algorithm is explored which jointly detects the wideband circularly symmetric complex Gaussian primary signal over multiple frequency bands. The spectrum sensing problem is formulated as a set of optimization problems, which maximizes the aggregate opportunistic throughput of a cognitive radio system under some constraints on the interference to the primary user...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.