Impact of Channel State Misreporting on Multi-user Massive MIMO Scheduling Performance
Zhanzhan Zhang, Yin Sun, Ashutosh Sabharwal, and Zhiyong Chen

TL;DR
This paper investigates how channel misreporting affects multi-user scheduling in massive MIMO systems, revealing that misreporting can significantly degrade throughput, especially with homogeneous users, and that the impact varies with the type and extent of misreporting.
Contribution
It provides a detailed analysis of the effects of channel misreporting on scheduling performance in massive MIMO, highlighting the different impacts of underreporting and overreporting for homogeneous and heterogeneous users.
Findings
Underreporting harms homogeneous user scheduling performance.
Overreporting can be beneficial for some users but harmful overall.
Rate loss due to misreporting exhibits periodic behavior as the number of misreporters increases.
Abstract
The robustness of system throughput with scheduling is a critical issue. In this paper, we analyze the sensitivity of multi-user scheduling performance to channel misreporting in systems with massive antennas. The main result is that for the round-robin scheduler combined with max-min power control, the channel magnitude misreporting is harmful to the scheduling performance and has a different impact from the purely physical layer analysis. Specifically, for the homogeneous users that have equal average signal-to-noise ratios (SNRs), underreporting is harmful, while overreporting is beneficial to others. In underreporting, the asymptotic rate loss on others is derived, which is tight when the number of antennas is huge. One interesting observation in our research is that the rate loss "periodically" increases and decreases as the number of misreporters grows. For the heterogeneous users…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsAdvanced MIMO Systems Optimization · Advanced Wireless Network Optimization · Energy Harvesting in Wireless Networks
