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The CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance) based wireless protocol ensures that each node in the network gets a reasonably fair share (FS) of the network channel. In the distributed environment of wireless network, a malicious node may deliberately select a smaller backoff timer to gain an unfair share of the network channel, thus disrupting the network throughput. This nature...
This work aims to improve the performance of cooperative relaying in interference-limited multihop networks. The multihop network nodes are equipped with multi-rate and continuous power control capabilities. The existing technique does not yield significant performance gains with multi-rate and power control capabilities. To obtain the achievable throughput rates, a cross-layer flow-based framework...
It's the generation of tiny satellites which basically needs all its components to be miniature. The product proposed here is one such component, a micro-strip patch antenna array operating at 2.2GHz and 2.45GHz S-band frequencies. This real-time project work deals with a rectangular patch antenna operating at S-band frequencies which is mainly focused to be applicable for the NIUSAT, which is a nano...
In this paper, an efficient and compact multi-band micro strip patch antenna for both the 4G WiMAX (3.4GHz) and for satellite applications (4.9GHz) is developed. The three resonant modes of the proposed antenna are 3.4 GHz, 4.4 GHz, 4.9 GHz. By proper adjustment of the U shaped slotted patch antenna enables the operation of multi band with a -10dB return loss, a omni directional radiation pattern...
The method of skull-stripping is based on edge detection. The method can extract the brain tissue from a normal MRI (magnetic resonance image) quickly and accurately. But if there are tumors at the boundary of the brain tissues whose intensity is different with normal tissues, some unwanted edge will appear while detecting the boundary of the brain tissue. So, a modified method to solve this issue...
Internet brings in marvelous turning point to business in terms of new finders. But it also brings in lot of loop hole to the business. Best known risk is intrusion, also referred as hacking or cracking. Intrusion detection method are anomaly detection and misuse detection. Our interest here is in anomaly detection and we have proposed a scalable solution for detecting network based anomalies. Application...
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