Designing Aspects of SCADA and Its Application in Water Irrigation Plant :

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Bluetooth Technology:

Abstract: You loose one hour in the morning and you will be searching for it throughout the   day. Need of the hour is communication, with least possible efforts. Mobility, efficiency and economy are the key aspects to be considered before applying any technology and if you are looking for the same, here is the salt for your food. Bluetooth - technology that can enter your lives and can redefine the way you communicate, be it the speed, ease or cost. It introduces to the same and describes some of its key features so as to get a feel of ‘Bluetooth-the short distance, wireless technology that promotes ‘live and let live’ philosophy. ’ This paper emphasizes on Bluetooth wireless technology its need, working and future of this in the market.

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Coexistence of Wi - Fi and Bluetooth:

Abstract:

The wireless revolution is underway, and devices based on radio technologies are expected to become a significant market in the next several years. Mobile phones, cordless phones, walkie-talkies, car door openers, and garage door openers are just a few examples of radio devices that have already achieved widespread adoption in the marketplace.

Out of the past several years, two innovations in wireless radio technology have captured our attention: Bluetooth (WPAN) and Wi-Fi (IEEE 802.11b-WLAN). These wireless communication technologies show great promise in transforming how people work and communicate with each other. These technologies are complementary rather than competing.

Both Wi-Fi and Bluetooth products utilize the unlicensed 2.4 GHz ISM band. Due to their dependence on the same band, the potential for interference exists. Both Wi-Fi and Bluetooth fail gracefully in the presence of interference. By this is meant that the communication protocols are very robust and include mechanisms for error checking and correcting, as well as requesting that corrupted packets be resent. Therefore the result of increasing levels of interference is almost always confined to a slowing of the data rate as more packets need to be resent.   

This paper analyzes different approaches to resolve the interference problems between  Wi-Fi and Bluetooth wireless technologies. This analysis explores the strengths and weaknesses of these interference mitigation approaches, and goes on to explain what is necessary for achieving satisfactory combination performance and true “Coexistence without Compromise”. In investigating different approaches to interference mitigation, this paper gives technical data and uses common wireless technology terms.

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