This paper presents two transmission techniques for MIMO OFDM communication, referred to as spatial spreading and eigenvector steering. Spatial spreading is used when the transmitting station is not presumed to have sufficient channel state information to compute optimum steering vectors. This situation may occur for a variety of reasons, including poor or aged channel estimates or lack of calibration between the transmit and receive antenna chains. Eigenvector steering is used in cases where the transmitting station has sufficient information about the channel to compute optimum transmit steering vectors. Simulation results showing throughput and range achieved by the two transmission strategies are provided.
['Irina Medvedev', 'Rod Walton', 'John W. Ketchum', 'Sanjiv Nanda', 'Björn Bjerke', 'Mark S. Wallace', 'Steven J. Howard']
Transmission strategies for high throughput MIMO OFDM communication