通信学报Issue(10)：100-105,6.DOI:10.3969/j.issn.1000-436x.2013.10.012
在Grassmann流形上构造非相干酉空时码
Noncoherent unitary space-time design base on Grassmann manifold
摘要
Abstract
A novel search technique was presented for designing noncoherent unitary space-time constellation. First of all, a unitary matrix framework based on Grassmann manifold was defined. Under the constraint of this framework, a dis-tance threshold was set by using the existing minimum chordal Frobenius norm of optimal packing distribution on the Grassmann manifold, and the points were searched for whose minimum chordal Frobenius norm exceeds the threshold by changing the amplitude and phase of every entry in the unitary matrix. At last, the whole unitary space-time constellation with minimum chordal Frobenius norm maximum was gotten. Numerical simulations indicate that this new constellation perfor better than the present codes.关键词
空时码/星座图/Grassmann流形/酉矩阵/阈值Key words
space-time code/constellation/Grassmann manifold/unitary matrix/threshold分类
信息技术与安全科学引用本文复制引用
符达伟,彭立,王利娇,彭秋平..在Grassmann流形上构造非相干酉空时码[J].通信学报,2013,(10):100-105,6.基金项目
国家自然科学基金资助项目（61071069）Foundation Item:The National Natural Science Foundation of China(61071069) （61071069）
