Presented By:
Syed Shahzad Shah, Faisal Suleman and Saqib Yaqub
Chameleon Logics
ABSTRACT
Forward Error Correction techniques are utilized for correction of errors at the receiver end. Convolutional encoding is an FEC technique that is particularly suited to a channel in which the transmitted signal is corrupted mainly by additive white gaussian noise (AWGN). The Viterbi decoding is one of two types of decoding algorithms used with convolutional encoding-the other type is sequential decoding. Sequential decoding has the advantage t ....etc

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What is CRC?
A systematic error detecting code
a group of error control bits (which is the remainder --a polynomial division of a message polynomial by generator polynomial) is appended to the end of the message block
with considerable burst-error detection capability
The receiver generally has the ability to send
retransmission requests back to the data source through a feedback channel.

Steps involved
Following are the steps that are involved in sending our message with ....etc

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field-programmable gate array is a semiconductor device containing programmable logic components called logic blocks, and programmable interconnects. Logic blocks can be programmed to perform the function of basic logic gates such as AND, and XOR, or more complex combinational functions such as decoders or mathematical functions. In most FPGAs, the logic blocks also include memory elements, which may be simple flip-flops or more complete blocks of memory. A hierarchy of programmable interconnects allows logic blocks to be interconnected as ne ....etc

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The trend in VLSI towards single-chip systems leads to the integration of analog and digital functions on a single chip. Field-programmable devices also follow the same trend. Currently, there are many digital field-programmable devices in existence like Field Programmable Gate Arrays (FPGA), and more recently Field Programmable Analog Arrays have been developed. Field-Programmable Analog Array, usually abbreviated FPAA, is the analog equivalent of the FPGA, a digital programmable device. It is an integrated circuit which can be configured to i ....etc

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A field-programmable gate array (FPGA) is an integrated circuit designed to be configured by the customer or designer after manufacturing.FPGAs can be used to implement any logical function that an ASIC could perform. The ability to update the functionality after shipping,FPGAs contain programmable logic components called logic blocks, and a hierarchy of reconfigurable interconnects that allow the blocks to be wired together somewhat like a one-chip programmable breadboard,
FPGA System having the advantage
Complete integrated design env ....etc

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hello,
I am m.tech student and I am studying in 3rd semester of digital communication branch. I have selected orfpga as the seminar topic.
So,I have required ppt of ORFPGA to make better seminar presentation.
If you send me this ppt, I will really make my seminar perfect.
So, please send me the ppt. ....etc

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Design and Implementation of a Field Programmable
CRC Circuit Architecture data is required ....etc

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Design and Implementation of a Hardware Divider in Finite Field


INTRODUCTION
Division in finite fields is an important arithmetic
operation that is widely used in channel coding,
cryptography, error correction and code construction
applications. An algorithm that is suitable for hardware
implementation should require few clock cycles and
simple arithmetic operations. One such algorithm has been
proposed for modular division and its inverse in GF(p) is
called the Unified Mod ....etc

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Guide to Using Field Programmable Gate Arrays (FPGAs) for
Application-Specific Digital Signal Processing Performance



Gregory Ray Goslin
Digital Signal Processing Program Manager
Xilinx, Inc.
2100 Logic Dr.
San Jose, CA 95124



Abstract:

FPGAs have become a competitive alternative for high performance DSP applications, previously dominated by general purpose DSP and ASIC devices. This paper describes the benefits of using an FPGA as a DSP Co-processor, as well as, a stand-alone DSP ....etc

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#include
#include
#include
void main()
{
int loop,loop1,loop2,temp,temp1,flen;
char frame={'0'};
char comp={'0'};
char quat={'0'};
char generator={'1','1','0','0','0','0','0','0','1','0','1'};
clrscr();
printf( enter the frame:\n\t);
for(loop=0;loop<88;loop++)
{
frame=getch();
temp=frame;
if(temp!=13&&temp!=48&&temp!=49)
{
loop--;
continue;
}
putch(frame);
if(frame==13)
break;
}
flen=loop;
for(loop=0;loop<13;loop++)
{
if(loop comp[loo ....etc

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