%0 Journal Article
%T Space-Time Frequency-Shift Keying Based on Hadamard Matrix Modulation<br>基于Hadamard矩阵调制的空时频移键控
%A Wang Lei
%A Zhu Shi-hua
%A Wang Jun
%A <br>王磊
%A 朱世华
%A 王君
%J 电子与信息学报
%D 2007
%I 
%X Focusing on the problem that existing Space-Time Frequency-Shift Keying (ST-FSK) incurs a spectral efficiency loss,this paper proposes a novel ST-FSK based on Hadamard matrix modulation coined as HST-FSK. HST-FSK uses the Hadamard matrix to expand a newly defined FSK waveform in both spatial and temporal dimensions according to the Kronecker product,and it achieves a higher spectral efficiency than ST-FSK owing to the more parameters are introduced into the new FSK waveform.As a special unitary space-time code,HST-FSK is appropriate for arbitrary number of transmit antennas and can be non-coherently detected with the absent of Channel State Information (CSI) at the receiver.Moreover,HST-FSK is easier to design and enjoys full antenna diversity,which are the advantages of HST-FSK over other Unitary Space-Time Modulation (USTM) designs. Theoretical analysis and simulation results show that compared with the existing typical USTM schemes, HST-FSK achieves a performance comparable to ST-FSK for the same spectral efficiency,and a better performance than the systematic designed USTM for high spectral efficiency.
%K Transmit diversity
%K Unitary space-time codes
%K Frequency-Shit Keying (FSK)
%K Non-coherent detection<br>发射分集
%K 酉空时编码
%K 频移键控
%K 非相干检测
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=3A3B6EBA50BEC1A227DA569730A9F789&yid=A732AF04DDA03BB3&vid=771469D9D58C34FF&iid=F3090AE9B60B7ED1&sid=C60F9D75D8506098&eid=B9A14123527DFCC6&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=7