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Personalized recommendation systems are widely used with the development of electronic commerce. Recommender systems provide the users a list of recommendations they might prefer or supply predictions, on how much the user might prefer each item. The environment we use for recommending the books with high ratings is Mahout, and for massive storage we go for BigData analysis. This provides a recommendation...
Multi-tenant is an architecture which allows multiple tenants (customers) to share a single instance of a software application. Resource demand for each and every tenant will differ. For satisfying the tenants demand, the software application will take varying response time. By applying the appropriate load balancing algorithm among the tenants we can reduce the response time and also increase the...
Big Data has been one of the current and future research frontiers. Data driven decisions derived from big data have critical significance in many application domains, e.g., health, commerce, finance, marketing, military, etc. In big data, computations have to operate on massive data sets to extract actionable intelligence and storage system must also support concurrent computations. The Hadoop file...
Orthogonal frequency division multiplexing (OFDM) has become a prevalent and widespread technique for the broadcast and transmission of signals over wireless channels and has been adopted in many wireless standards. OFDM may be united with antenna arrays at the transmitter and receiver side to improve the diversity gain and to improve the system competence on time-variant along with the frequency-selective...
The greatest favour of MIMO systems is that more satisfactory performance can be easily achieved without using additional transmit power or extension of the bandwidth. However, its main disadvantage is that additionally high-cost radio frequency (RF) modules are an essential necessity as multiple antennas are deployed. In general, RF modules include components like low noise amplifier (LNA), frequency...
OFDM(Orthogonal Frequency Division Multiplexing) technique has been widely adopted in many wireless communication systems due to its high data-rate transmission ability and robustness to the multipath fading channel. One major drawback of the OFDM signal is the high peak-to-average power ratio (PAPR) problem. The high PAPR results in the in-band distortion and out-of-band radiation when the OFDM signal...
A clipping-filtering technique is the simplest and most widely used technique for peak-to-average power ratio reduction (PAPR) in a multicarrier transmission. The paper presents comparison analysis of two clipping-filtering schemes. The first one performs clipping of a signal at the Nyquist rate while in the second implementation a signal is oversampled before clipping. The schemes are compared through...
The methanol extract of the roots of Tragia involucrata topically tested at doses of 100 and 200 mg/kg exerted significant wound healing effect in Staphylococcus aureus-induced excision wound in rats.
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