Multi-User Frequency Assignment for Ultra-Reliable mmWave Two-Ray Channels
Abstract
We consider a multi-user two-ray ground reflection scenario with unknown distances between transmitter and receivers. By using two frequencies per user in parallel, we can mitigate possible destructive interference and ensure ultra-reliability with only very limited knowledge at the transmitter. In this work, we consider the problem of assigning two frequencies to each receiver in a multi-user communication system such that the average minimum receive power is maximized. In order to solve this problem, we introduce a generalization of the quadratic multiple knapsack problem to include heterogeneous profits and develop an algorithm to solve it. Compared to random frequency assignment, we report a gain of around 6 dB in numerical simulations.
Keywords
Cite
@article{arxiv.2211.07204,
title = {Multi-User Frequency Assignment for Ultra-Reliable mmWave Two-Ray Channels},
author = {Karl-Ludwig Besser and Eduard A. Jorswieck and Justin P. Coon},
journal= {arXiv preprint arXiv:2211.07204},
year = {2022}
}
Comments
8 pages, 5 figures. arXiv admin note: substantial text overlap with arXiv:2206.13459