V. Bharathi

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H.264 video coding standard supports a broad range of application and providing its security is an important research topic. In this work, a video encryption algorithm for H.264 is proposed, which combines permutation code algorithm with dynamic keys. This work aims at providing more security for H.264 video using dynamic keys and permutation code(More)
4G wireless communication expects to integrate different radio access technologies together to meet wide expectation from users and to support mobility. Call Admission Control (CAC) plays important role in such heterogeneous environment to effectively utilize network resources and to meet user QoS. This paper proposes IP Multimedia Subsystem (IMS) based(More)
Handwritten document recognition is an area of pattern recognition that has been showing impressive performance in the machine printed text. Handwritten document recognition is an intricate task to various writing styles of individual person. The system first identifies the contour in a handwritten document for segmentation and features are extracted from(More)
Travel based recommendation and journey planning are challenging tasks because of various interest preferences and trip restrictions such as limitation of time, source and destination points for each tourist. Large amount of data can be collected from the Internet and travel guides, but these resources normally recommend individual Point of Interest (POI)(More)
  • Harish Shenigarapu, Sridhar Panthangi, Ramesh Lakavath, V. Bharathi
  • 2013
As there are many advantages of resonant power conversion due to which it is being adopted traditionally as pulse-width modulation that includes a low electromagnetic interference with low switching losses with its small volume and light weight of components that enables high switching frequency that produces high efficiency and low reverse recovery losses(More)
Group Communication has become important in Mobile Adhoc Network (MANET). But because of its dynamic topology it is difficult to implement group communication in MANET. In order to implement group communication, Efficient Geographic Multicasting Protocol (EGMP) came into existence, the efficiency and scalability of the protocol was already tested using(More)
A Content Addressable Memory is a memory unit which compares input search data against a table of stored data and returns the address of the matching data which is retrieved within single clock cycle. The CAM consumes more power due to parallel search operation and the designing issues of the CAM are to reduce the power consumption, area and to improve(More)
Heterogeneous cellular network (HCN) consists of macro, pico and femto cells within the same geographical area. This network utilizes available spectrum efficiently using frequency reuse technique. Due to frequency reuse the HCN network suffers from inter-cellular interference. To reduce interference and to maintain QoS of pico and femto cell users, Time(More)
4G communications expects to integrate different radio access networks together to meet wide expectation from users and to support mobility. The different radio networks such as Universal Mobile Telecommunication Systems (UMTS), Worldwide interoperability for Microwave Access (WiMAX), Wireless Local Area Network (WLAN), etc. are collocated in same(More)