id: 05513140 dt: j an: 05513140 au: Zhao, Xiaochuan; Peng, Tao; Yang, Ming; Wang, Wenbo ti: On the cramer-rao lower bound for spatial correlation matrices of doubly selective fading channels for MIMO OFDM systems. so: Comput. Res. Repos. 2008, Article No. 0811.0433 (2008). py: 2008 pu: Association for Computing Machinery, New York, NY; Cornell University, Ithaka, NY la: EN cc: ut: ci: li: arXiv:0811.0433