Z-MAC: A Hybrid MAC for Wireless Sensor Networks

Presented By:-
Subodh Kumar Gond
Roll. No. 08EC6415
M.Tech. 1st Year
Telecommunication System Engineering


Introduction

What is MAC
-Controlling access to the channel
What is Z-MAC

- A Hybrid MAC which Combine the strengths of CSMA and TDMA while offsetting their weakness.

- The main feature of Z-MAC is its adaptability to the level of contention in the network .

CSMA (Carrier Sense Multiple Access)
¢ ....etc

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Abstract
The past decade has witnessed substantial progress towards the application of low bit rate speech coders to civilian and military communications as well as computer related voice applications. Central to this progress has been the de- velopment of new speech coders capable of producing high quality speech at low data rates. Most of these coders incorporate mechanisms to: synthesize speech using Linear Predictive Coding, represent the spectral properties of speech, pro- vide speech waveform matching, and optimize the coder's perform ....etc

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Definition

As more and more audiovisual information becomes available from many sources around the world, many people would like to use this information for various purposes. This challenging situation led to the need for a solution that quickly and efficiently searches for and/or filters various types of multimedia material that's interesting to the user.
For example, finding information by rich-spoken queries, hand-drawn images, and humming improves the user-friendliness of computer systems and finally addresses what most people have been ....etc

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A Design of HDB3 CODEC Based on FPGA


ABSTRACT
The basic principles and structure of HDB3 was briefly introduced in this paper, and the shortcomings of the existing HDB3 encoder and decoder was analyzed. Then a new design of HDB3 encoder and decoder based on FPGA was proposed, and the hardware design circuit and software simulation were introduced. The simulation was achieved through the VERILOG-HDL in EP2C35F672C8 chip of CycloneII series in the d ....etc

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Sir/Madam

kindly send me any power point paper presentation on


EFFICIENT ON CHIP CROSSTALK AVOIDANCE CODEC DESIGN based on time delay




Sir/Madam

kindly send me any power point paper presentation on


EFFICIENT ON CHIP CROSSTALK AVOIDANCE CODEC DESIGN based on time delay



to my email

[email protected]

....etc

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sir...
please send me the MATLAB code for energy consumption in S-MAC and Token BAsed MAC Protocol. on my mail id ([email protected])


Anjali Varshney ....etc

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For real time facial animation on the web, following are the important requirements:
1). Easy installation: like in most of the application, the virtual presenter is not the most important attraction of the proposed services. For this, we would not use any plug-in and the complete applet development (Shout3D rendering + deformation engine) is pure java.

2). Visual quality: in case of the virtual talking heads on the web looks and realism are of utmost importance. In the case of the virtual cartoon-like character, we can be freer to use arti ....etc

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Definition

MPEG is the famous four-letter word which stands for the Moving Pictures Experts Groups.
To the real word, MPEG is a generic means of compactly representing digital video and audio signals for consumer distributionThe essence of MPEG is its syntax: the little tokens that make up the bitstream. MPEG's semantics then tell you (if you happen to be a decoder, that is) how to inverse represent the compact tokens back into something resembling the original stream of samples.

These semantics are merely a collection of rules (which ....etc

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sir
i am the student of M.tech.and i am working on wireless sensor network MAC protocols.
please send me the MATLAB coding for average packet latency in T-MAC and S-MAC protocols.on my mail id...([email protected]).

Anjali Varshney ....etc

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Abstract—The pervasive adoption of IEEE 802.11 radios in the past decade has made possible for the easy Internet access from a vehicle, notably drive-thru Internet. Originally designed for the static indoor applications, the throughput performance of IEEE 802.11 in the outdoor vehicular environment is, however, still unclear especially when a large number of fast-moving users transmitting simultaneously. In this paper, we investigate the performance of IEEE 802.11 DCF in the highly mobile vehicular networks. We first propose a simple yet accu ....etc

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