期刊名称:International Journal of Enterprise Computing and Business Systems
电子版ISSN:2230-8849
出版年度:2012
卷号:2
期号:1
出版社:International Journal of Enterprise Computing and Business Systems
摘要:WiMAX based on IEEE Std. 802.16 carries high data rates and large coverage to wireless networks. It provide high speed wireless broadband connectivity building the gap between 3G and Wireless LAN (WLAN).The main focus of this paper is on 802.16d OFDM PHY layer. The simulation will compare the performance of SF and STF – OFDM over different SUI channel models. Forward error correction is used to improve the reliability of transmitted data. The main categories of FEC are block and convolutional codes. In the simulation block and convolutional codes are frequently combined in concatenated coding schemes in which the convolutional codes does most of the work and the block code “mops up” any errors made by the convolutional decoder.