Pradyumna Siddhartha

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Web services are hot. To make them workable in practice, however, is not easy. Often, successful implementations of Web services warrant that various applications on heterogeneous platforms participating in a service communicate correctly and effectively. But achieving seamless interoperability among participating entities in a Web service can be tricky.(More)
In wireless communication technology, Direct Sequence Code Division Multiple Access (DSCDMA) system has been used. Multiple Access Interference (MAI) limits the capacity of DSCDMA. In this paper, Linear Multi-user Detectors and conventional Matched Filter (MF) are simulated using Gold sequence and PN sequence as spreading codes in DS-CDMA system.(More)
Direct Sequence Code Division Multiple Access (DS-CDMA) system is well known wireless technology. This system suffers from MAI (Multiple Access Interference) caused by Direct Sequence users. Multi-User Detection schemes were introduced to detect the users’ data in presence of MAI. Linear Multi-user Detectors and conventional Matched Filter (MF) are(More)
Direct Sequence Code Division Multiple Access (DS-CDMA) system is suffers from Multiple Access Interference (MAI). Multi-User Detection schemes were introduced to detect the users’ data in presence of MAI. In this paper, we proposed a novel method is called Hybrid Interference cancellation (HIC) scheme. It consists of the combination of subtracting and(More)
Direct torque control based on space vector modulation (SVM-DTC) preserve DTC transient merits, furthermore, produce better quality steady-state performance in a wide speed range. The SVM-DTC system based on input-output linearization technique for induction machine drives is developed in this paper. A sliding-mode observer for estimating flux is(More)
In this paper, partial pre-coding method has been developed to solve the Multiple Access Interference (MAI) and computational complexity problems. This is done by selectively pre-decorrelating users to destructive interference while allowing interference when it is expected to contribute to their signal. The resulting SNR improvement is achieved by making(More)
M.Samuel John Department of Computer Applications, V.R.Siddhartha Engineering College, Vijayawada, INDIA Email: write2samuel@gmail.com V.Siva Parvathi, M.Raja Sekhar Department of Computer Science and Engineering, P.V.P.Siddhartha Institute of Technology, Vijayawada, INDIA Email: sivaparvathi.mtech@gmail.com, macharlasekhar@yahoo.co.in P.Raveendra Babu(More)
The 3 generation mobile communication system will base on Code Division Multiple Access (CDMA) system, because CDMA system can provide more capacity than TDMA and FDMA systems. But signal will suffer from the interference called Multiple Access Interference (MAI).This problem can be reduced by using multi-user detection technique. This paper examines the(More)
Direct Sequence Code Division Multiple Access (DS-CDMA) system is well known wireless technology. This system suffers from MAI (Multiple Access Interference) caused by Direct Sequence users. Multi-User Detection schemes were introduced to detect the users’ data in presence of MAI. In Multi stage Partial parallel interference cancellation (MP-PIC) method(More)