G. Saravana Kumar ¹, V. Parthasarathy ², E. Praveen Kumar ¹, S. Thiyagarajan ¹, S. Siva Saravana Babu ¹, S. Sudhakar ¹

Affiliations
1 Department of ECE, Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai 600062, Tamil Nadu, IN
2 Department of CSE, Vel Tech Multi Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai 600062, Tamil Nadu, IN

Abstract

Background/Objectives: Among a gamut of evolving domains in medicine exchange of medicinal data and images amid multiple entities constitutes a pivotal aspect for telemedicine. An effective bandwidth allocation and management scheme is essential to accomplish the telemedicine communication requirements. This necessitates the requisite to develop and implement a compression and encryption scheme for medical images. Methods: This paper recapitulates the diverse transformation techniques employed in compression and identifies the constraints associated with the techniques. This paper summarizes the comparison of encryption methods such as Rivest Cipher 4(RC4), Rivest Cipher 2(RC2) and Data Encryption Standard (DES) in terms of time consumed to complete encryption and decryption operations. Findings: This paper considers Peak Signal-to-Noise Ratio (PSNR) and Compression Ratio (CR) as performance measures and establishes the proposed algorithms's effectiveness over Set Partitioning Hierarchical Trees (SPIHT). Application: This algorithm can be utilized for medical image compression, transfer and archiving operations.

Keywords

Compression Ratio (CR), Data Encryption Standard (DES), Peak Signal-to-Noise Ratio (PSNR), Rivest Cipher 4(RC4), Rivest Cipher (RC2), Set Partitioning Hierarchical Trees (SPIHT)

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G. Saravana Kumar ¹, V. Parthasarathy ², E. Praveen Kumar ¹, S. Thiyagarajan ¹, S. Siva Saravana Babu ¹, S. Sudhakar ¹

Affiliations
1 Department of ECE, Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai - 600062, Tamil Nadu, IN
2 Department of CSE, Vel Tech Multi Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai - 600062, Tamil Nadu, IN

Abstract

Background/Objectives: In multimedia data communication environment a trade-off shall be opted between power, spectrum needs and wireless channel capacity in Global System for Mobile, Long Term Evaluation, and Wireless Local Area Networks applications. Multi-Input Multi-Output antenna elements display a high degree of similarity and it leads to efficacy reduction in multi user milieu. Methods: This paper investigates and presents a condensed 2-port coax fed multiband MIMO antenna for 4G applications. The proposed MIMO antenna possesses dimensions of 45mm×50mm×0.4mm³ and comprises two layers, a rectangular patch, a pair of small-N shaped strips, two G-shaped monopole structures and L-shaped slots. An array of three resonant frequencies is opted for exciting the proposed design with the values of 1.8GHz, 2.5GHz and 5GHz. The methodology exhibits an adaptable frequency selecting with the ability to neutralize the impact of the other frequency. Findings: The implemented design accomplishes a high efficiency rates for LTE-Advanced, WiMAX and Wi-Fi applications 71.80%, 72.28% and 85.74%. Applications/Improvements: Fabrication with a suitable FR4 substrate material is used in the design of the coax fed multiband MIMO antenna. For future enhancements, the radiation pattern and reflection coefficient of an antenna shall be assessed.

Keywords

Global System for Mobile, Multi-Input Multi-Output Antenna, Long Term Evaluation, Wireless Local Area Networks

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V.P. Kolanchinathan ¹, G. Saravana Kumar ²

Affiliations
1 St. Peter’s University, Chennai - 600109, Tamil Nadu, IN
2 Department of ECE, Vel Tech High Tech Dr. Rangarajan Dr. Sakunthala Engineering College, Chennai - 600062, Tamil Nadu, IN

Abstract

Background: In Current VLSI circuits, e.g., Modules like accumulators, Arithmetic Logic Units (ALUs) are present generally in information line structure or discrete signal Processing chips. ABIST has a basic idea that is used by accumulators for built-in testing and its generated test patterns show the hardware overhead degradation and decreased circuit speed. Method: In the present system this paper use a scheme which holds a generation of test patterns and is compared with previously proposed scheme. The test patterns created by accumulator proves that it takes input produced by a constant pattern holding an acceptable pseudo random individuality, if a proper input pattern is selected. Weighed pseudorandom BIST schemes were utilized to bring down the vector number in BIST applications. Findings: For the generation of test patterns, we use a group which has 0, 1 and 0.5 weights and this group is an impartial group and this use will lower the time needed for testing and also reduces power used. In the above work, digital circuits such as G27 Bench mark and SISO are, accumulator based BIST. Finally, the synthesis results of these circuits are compared with normal BIST. It was found that the circuit as low delay using accumulator based BIST.

Keywords

ABIST, ALU, BIST, CUT, Combinational Circuits

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