Limitations of current 4G systems and its substitute schemes with TDD/TDMA
ZhaoganLu, TaiyiZhang, XiaodongShen, XiaoheLi · WSEAS TRANSACTIONS on COMMUNICATIONS archive · 2007
In current 4G system given in recent literatures, channel estimation overhead and complexity of multi-user detectors (MUD), may lead to bad performance in fast fading channel scenarios when large n...