主讲题目:Code Hopping Multiple Access Based on Orthogonal Complementary Codes
主讲嘉宾：Pro.Hsiao-Hwa Chen National Cheng Kung University, Taiwa
邀请人：何业军教授
时间：2017年3月7日（周二）上午10：00
地点：永利集团南区基础实验楼北座信息工程学院N710会议室
内容简介:
Code hopping multiple access (CHMA) is a newly emerging multiple access technique with its potential to offer a high security and capacity. Unfortunately, orthogonality amongst usersignals in existing CHMA schemes can be preserved only in synchronous channels under an assumption that neither multipath interference (MI) nor multiple access interference (MAI)exists. Exploiting their ideal orthogonality, we apply orthogonal complementary codes to CHMA systems to overcome the problems with existing CHMA schemes. In particular, we willshow that the application of orthogonal complementary codes can significantly improve the performance of a CHMA system due to its unique collision resistant capability. Theproperties and BER performance of the proposed system are analyzed for both uplink and downlink applications, where the system may suffer MI and MAI simultaneously. Simulationresults show that the complementary coded CHMA with channel coding can provide a high capacity and a robust performance.
嘉宾简介：
Hsiao-Hwa Chen is currently a Distinguished Professor in the Department of Engineering Science, National Cheng Kung University, Taiwan. He obtained his BSc and MSc degrees fromZhejiang University, China, and a PhD degree from the University of Oulu, Finland, in 1982, 1985 and 1991, respectively. He has authored or co-authored over 400 technical papers inmajor international journals and conferences, six books and more than ten book chapters in the areas of communications. He served as the general chair, TPC chair and symposiumchair for many major international conferences. He served or is serving as an Editor or/and Guest Editor for numerous technical journals. He is the founding Editor-in-Chief of Wiley’sSecurity and Communication Networks Journal (www.interscience.wiley.com/journal/security). He is the recipient of the best paper award in IEEE WCNC 2008 and a recipient of IEEERadio Communications Committee Outstanding Service Award in 2008. He received prestigious IEEE 2016 Jack Neubauer Memorial Award on Sept. 20, 2016. He also served as theEditor-in-Chief for IEEE Wireless Communications from 2012 Feb to 2015 June, and an elected Member at Large of IEEE ComSoc from 2013-2016. He is a Fellow of IEEE, and aFellow of IET.
