plz send the VEBEK: Virtual Energy-Based Encryption And Keying For Wireless Sensor Networks project report . ....etc

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I am Rohini. I am a fourth year computer science engineering student. I want to present a seminars. For that i selected a topic 'Logarithmic keying of communication network'.but i do not get the content about the topic. I want to submit the seminar report on Monday.I have no any idea about the topic. so please help me to prepare the seminar report. please send me the full content of the topic 'logarithmic keying of computer networks'.please help me ....etc

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seminor topic on logarethamic keying please send me ....etc

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Abstract:
frequency shift keying (FSK) is a method for representing digital data with analog signals by using a change in the frequency of the carrier to represent information. It is thus a type of modulation. FSK with two frequencies, corresponding to the digital values 0 and 1 (see diagram) is the primary method used by low-speed modems.FSK is a low performance type of digital modulation. Binary FSK is a form of constant amplitude angle modulation, ....etc

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VEBEK: Virtual Energy-Based Encryption And Keying For Wireless Sensor Networks

– – Mobile Computing – Dot Net

Designing cost-efficient, secure network protocols for Wireless Sensor Networks (WSNs) is a challenging problem because sensors are resource-limited wireless devices. Since the communication cost is the most dominant factor in a sensor’s energy consumption, we introduce an energy-efficient Virtual Energy-Based Encryption and Keying (VEBEK) scheme for WSNs that significantly reduces the number of transmissions needed for re ....etc

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ABSTRACT
Consider a communication network where each process needs to securely exchange messages with its neighboring processes. In this network, each sent message is encrypted using one or more symmetric keys that are shared only between two processes: – the process that sends the message and the neighboring process that receives the message. A straightforward scheme for assigning symmetric keys to the different processes in such a network is to assign each process O(d) keys, where d is the maximum number of neighbors of any process ....etc

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plz send the logarithic keying ppt ....etc

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VMSK(very minimum shift keying modulation) ,for very minimum shift keying modulation, is one of the ultra narrow band modulation (UNBM) methods claimed to send high speed digital data through very low bandwidth (or narrowband) channels. ....etc

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GMSK:
Gaussian Filtered Minimum Shift Keying
Gina Colangelo
EE194 - SDR
Topics
Background
Minimum Shift Keying (MSK)
Gaussian Filtering
Spectral Efficiency GMSK vs. MSK
Common Applications
Introduction
Digital modulation schemes are becoming increasingly important in wireless communication systems.
Using an unfiltered binary data stream to modulate an RF carrier will produce an RF spectrum of considerable bandwidth.
Techniques have been developed to minimize this bandwidth, improve spectral performance, and ease detection.
Bac ....etc

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