Array Size Reduction for High-Rank LOS MIMO ULAs

作者：Haelsig Tim; Lankl Berthold

来源：IEEE Wireless Communications Letters, 2015, 4(6): 649-652.

DOI：10.1109/LWC.2015.2477508

• LOS MIMO
• antenna arrangement
• uniform linear antenna array
• dielectrics

In this letter we propose an extended LOS MIMO channel model, which considers an additional phase shifting term in the transmission path, and which provides the potential to improve channel conditioning significantly. We show that this phase shifting can, for example, be achieved by adding a dielectric material between the transmitting and receiving antennas, where the phase shift is dependent on the distance the waves travel in the medium. Using that distance as a design parameter we demonstrate that the optimal spacing between antenna elements of uniform linear arrays, achieving full spatial multiplexing, can be reduced compared with the well-known spacing criterion from previous investigations.

• 出版日期2015-12