%0 Journal Article %T COMMUNICATION BY 31 BIT HAMMING CODE TRANSCEIVER WITH EVEN PARITY OR ODD PARITY CHECK METHOD USING VHDL %A brajesh kumar gupta %J International Journal of Electronics, Computer and Communications Technologies %D 2012 %I Universiti Tenaga Nasional %X In communication system communication is possible in three modes. They are simplex, half duplex and full duplex mode. Here, we are working on full duplex mode by using the property of transceiver. Transceiver can transmits and receives data simultaneously. Here we generate 31 bit code to transmit 25 bit information data. And also find 25 bit actual information data from 31 bit received code. To generate 31 bit data string form 25 bit actual information data for transmission at transmitting end we use Hamming code method. Here we also use Hamming code methodology for finding 25 bit actual information data from received 31 bit data string at receiving end. To transmit 25 bit actual information data by using Hamming code even parity and odd parity check method we have to add 5 redundancy bits and 1 bit for deciding the type of parity used (even parity and odd parity ) in actual data string . After adding these 6 bits in 25 bit information data we get 31 bit data string for transmission at transmitting end. At receiver section, we find 25 bit actual information data string from 31 bit received data string. To find 25 bit information data from 31 bit received data sting we need 5 bit for finding error bit location (if any single bit or double bit error is occurred) and 1 bit is needed for selecting the same parity check method, which we have used at transmitting end. Here we have written VHDL code for generating 31 bit data string code form 25 bit information data by Hamming code even parity and odd parity check methodology for transmission at transmitting end. Here we also written VHDL code at receiving end for finding 25 bit actual information data from received 31 bit data string code by Hamming code even parity and odd parity check method. Here we %K Hamming code %K even parity check method %K odd parity check method %K redundancy bit %K transceiver %K transmitter %K receiver %K VHDL %K Xilinx ISE 10.1 simulator %U http://ijecct.coe.edu.my/journal/index.php/ijecct/article/view/125