| Paper ID | C-1-1.3 |
| Paper Title |
Low-Complexity Robust Beamforming with Blockage Prediction for Millimeter-Wave Communications |
| Authors |
Ryo Okabe, The University of Electro-Communications, Japan; Hiroki Iimori, Jacobs University Bremen, Germany; Koji Ishibashi, The University of Electro-Communications, Japan |
| Session |
C-1-1: Wireless Communications and Networking |
| Time | Tuesday, 08 December, 12:30 - 14:00 |
| Presentation Time: | Tuesday, 08 December, 13:00 - 13:15 Check your Time Zone |
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All times are in New Zealand Time (UTC +13) |
| Topic |
Wireless Communications and Networking (WCN): |
| Abstract |
We propose a low-complexity robust beamforming algorithm for millimeter-wave coordinated multi-point architectures subject to random path blockages due to moving objects such as human bodies and the low-scattered nature of millimeter-wave channels. In order to tackle this difficulty without dealing with computationally-demanding possible combinations of channel statics, which are considered to be a bottleneck of the existing state-of-the-art method for this issue, we introduce a weighted-sum formulation of the latter problem as well as the associated effective weight design, which is shown to be efficient from a complexity point-of-view in comparison with the other state-of-the-art alternatives. Aiming to clarify the above, complexity-order analysis in terms of floating-point operations per second are also provided for both the proposed and state-of-the-art robust beamforming designs for millimeter-wave path blockages. Simulation results illustrate the superior performance of the proposed method to the state-of-the-art in terms of the performance-complexity trade-off, which also demonstrate the legitimacy of the complexity analysis derived in this paper. |