Informatics Publishing Limited

M. Saravanakumar ¹, S. Sarala ¹, A. Sivagami ¹

Affiliations
1 Department of ECE, Sri Manakula Vinayagar Engineering College, Pondicherry, IN

Abstract

Underwater communication plays an important role in remote control in offshore oil industry pollution monitoring in environmental systems , mapping of the ocean floor for detection of objects as well as for the discovery of new resources. Optical wireless communication has been proposed as the best alternative to meet this challenge. Pulse position modulation (PPM) has the advantages of low transmitting power and better anti-noise performance and has been used to be an attractive option for optical wireless communications. However, the limitation in low bandwidth utilization makes the PPM modulation de-efficiency for a large amount of data transmission, e.g. multimedia information. In this paper, we proposed a modified PPM transceiver scheme (SPPM) to improve the transmission performance. The Shorten PPM transceiver system may be used for image transmission for designing underwater optical communication system. The simulation results of bandwidth, transmission power and anti-noise performance at the same signal to noise ratio conditions are presented and compared. It is shown that the SPPM scheme has the similar performance of the PPM in error controlling with improved bandwidth utilization. Furthermore, it can be more convenient to combine the error control coding to improve the reliability of signal transmission and lower the complexity of the transceiver.

Keywords

Spatial, Angular, Temporal, Pulse Position Modulation (PPM), Underwater Wireless.

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P. Boominathan ¹, M. Saravanakumar ¹

Affiliations
1 Anna University of Technology, Coimbatore, IN

Abstract

Job Burnout is emotional, physical, intellectual and spiritual exhaustion. High levels of stress can ultimately cause exhaustion and break-down. Excess stress can lead to Burnout, the fall-out being low levels of Job Involvement or rather low levels of Job Involvement leading to Burnout. The study found emotional exhaustion to have significant effects on employees' intent to stay in the organization directly and through the mediation of affective commitment. Job burnout is considered an outcome of organizational politics due to the influence of various independent variables like job attitude, job involvement etc on the same. Like the proverbial chicken and egg story, it is difficult to establish a cause effect relationship between Burnout and Job Involvement. Burnout can have serious implications for the managers in affecting their productivity and thereby affect the organizations adversely. It is not the complacent, easy going individual who runs the highest risk of Burnout. Instead, it is those with high expectations and a sense of purpose who are the greatest victims, people with high standards for themselves and for others. Findings of the study provide strong implications for banking management to have careful insight about the attitudinal and behavioral problems of the employees. The limitations and future area of research are also discussed in the study.

Keywords

Job Motivation, Stagnation, Detachment, Job Burnout and Emotionally Exhausted.

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