期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2017
卷号：6
期号：2
页码：2109
DOI：10.15680/IJIRSET.2017.0602114
出版社：S&S Publications
摘要：As a high performance on-chip communication method, the code division multiple access (CDMA)technique has recently been applied to networks on chip (NoCs). We propose a new standard-basisbasedencoding/decoding method to leverage the performance and cost of CDMA NoCs in area, power assumption, andnetwork throughput. In the transmitter module, source data from different senders are separately encoded with anorthogonal code of a standard basis and these coded data are mixed together by an XOR operation. Then, the sums ofdata can be transmitted to their destinations through the onchip communication infrastructure. In the receiver module, asequence of chips is retrieved by taking an AND operation between the sums of data and the corresponding orthogonalcode. After a simple accumulation of these chips, original data can be reconstructed. We implement ourencoding/decoding method and apply it to a CDMA NoC with a star topology. Compared with the state-of-the-artWalsh-code-based (WB) encoding/decoding technique, our method achieves up to 67.46% power saving and 81.24%area saving together with decrease of 30%–50% encoding/decoding latency. Moreover, the CDMA NoC with differentsizes applying our encoding/decoding method gains power saving, area saving, and maximal throughput improvementup to 20.25%, 22.91%, and 103.26%, respectively, than the WB CDMA NoC.
