definable window size which is provided to sender and receiver. Sliding window protocol defines maximum transmitter window size‚ Ws which is always one less than the sequence number. How transmitter window is defined: It is contains the data that are ready to be send. The lower limit in transmitter window which is waiting for acknowledgement is Slast .The upper limit frame in transmitter window is Slast + ws -1.Also each transmitted frame is allocated by a timer that when itès expire sender
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improve communication performance. This paper presents a Multipath Fading Mitigation Technique that reduces the negative impact of the fading process. In our Paper‚ Multiple-Input Multiple-Output (MIMO) technology:a Wireless Technology uses Two Transmitters and Receivers each to transmit the multiple signals (one for each antenna) at the source and the destination. It promises to deliver the best solution to eliminate the trouble caused by multipath wave propagation. The outcome has better quality
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Domain : Robotics‚ Wireless Communication Software : Embedded C‚ Keil‚ Proload Microcontroller : AT89S52 Power Supply : +9V‚ 500mA Regulated Power Supply Display : Television Crystal : 11.0592MHz Communication Device : RF Module Transmitter : STT – 433MHz Receiver : STR – 433MHz Applications : Industries‚ Process Control‚ Domestic and Automotives Hand Gesture Recognition Technology Based Wireless Surveillance Bomb Diffusing Robot with Mobile Jamming Technique
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Wireless Charger for Low Power Devices Chapter 1 1.1 Introduction We live in a world of technological advancement. New technologies emerge each and every day to make our life simpler. Despite all these‚ we still rely on the classical and conventional wire system to charge our everyday use low power devices such as mobile phones‚ digital camera etc. and even mid power devices such as laptops. The conventional wire system creates a mess when
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NANYANG TECHNOLOGICAL UNIVERSITY School of Electrical and Electronic Engineering Laboratory Experiment ------------------------------------------------- ------------------------------------------------- ------------------------------------------------- Laboratory Report ------------------------------------------------- ------------------------------------------------- For ------------------------------------------------- -------------------------------------------------
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wireless link is preferred. One of the popular wireless communication technologies is RF communication that is being used in our project. The HT12E and HT12D chips have been used to maintain a wireless link between the two computers. The PC on the transmitter side first transmits the data serially to the microcontroller with the help of voltage converter (MAX232) at an adjusted baud rate. This data is then transmitted to the microcontroller on the receiver side with the help of the wireless link maintained
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Save a copy of the filter response. Run the simulation. What is the approximate null-to-null bandwidth? Are the sidelobe power levels noticeably reduced? Save a copy of the spectrum analyzer display for submission. Stop the simulation. I. 8-PSK Transmitter In this step‚ we will change the number of data bits transmitted per symbol by increasing the number of phase states. An 8-PSK modulation scheme uses 8 phase states separated by 45degrees (pi/4) to transmit 3-bits per symbol. Change the M-PSK Modulator
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circuit is easy to build .Two IR transmitter-receiver pairs are used at the passage: one pair comprising IR transmitter IR TX1 and receiver phototransistor T1 is installed at the entry point of the passage‚ while the other pair comprising IR transmitter IR TX2 and phototransistor(TSOP sensor) T2 is installed at the exit of the passage. The IR signals from the IR LEDs should continuously fall on the respective phototransistors‚ so proper orientation of the transmitters and phototransistors is necessary
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mentioned earlier this is a really simple project‚ so simple that not even an embedded computer (microcontroller) is used. The emphasis is just on the mechanical design and some basic circuitry. We learn the interface of the commercially available RF transmitter and receiver module coupled with HT12E/D pair (Encoder/Decoder) to transfer data over the air to the motor driver L293D. Things you will need: These are the things that you will need. Most of them are really
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MINOR PROJECT REPORT SUBMITTED IN PARTIAL FULFILLMENT FOR THE AWARD OF BACHELOR’S DEGREE IN ELECTRONICS AND COMMUNICATION ENGINEERING OF RAJASTHAN TECHNICAL UNIVERSITY SUBMITTED BY: DEEPAK SHARMA HITESH GOURANA HITESH RAJPUROHIT (VII SEMESTER) (2010-11) PROJECT ON ULTRASONIC OBJECT DETECTION DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING JODHPUR INSTITUTE OF ENGINEERING AND TECHNOLOGY NH – 65‚ MOGRA‚ JODHPUR 342 002 CERTIFICATE This is to certify that the following students
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