A New OFDMA Encoding and Decoding Method for NOC Using MIMO

OFDMA (Orthogonal Frequency Division Multiple Access) technique has been recently applied to wireless networks. CDMA (Code Division Multiple Access) is not suitable for designing a platform that requires computational power and flexiblility at the same time. The proposed encoding and decoding method helps to hold the performance and cost of OFDMA Networks. The proposed system reduces the area and power consumption comparing to the existing system. In transmitter module, source data from different sender are independently encoded with an orthogonal code of a standard basis and these coded data are mixed together by an XOR operation. Then, the sum of data can be transmitted to their destinations through the wireless infrastructure. In the receiver module, a sequence of chips is retrieved by taking an AND operation between the sum of data and the corresponding orthogonal code. After a simple accumulation of these chips, original data can be reconstructed. MIMO detection system based on multi-core principles where the computation nodes are interconnected using the Network On Chip (NOC) model.