Open AccessPosted Content
Downlink Single-Snapshot Localization and Mapping with a Single-Antenna Receiver
Reads0
Chats0
TLDR
In this article, a joint maximum likelihood estimation problem is formulated and its solution formally derived for single-snapshot localization and mapping in the more challenging case of a user equipped with a single-antenna receiver.Abstract:
5G mmWave MIMO systems enable accurate estimation of the user position and mapping of the radio environment using a single snapshot when both the base station (BS) and user are equipped with large antenna arrays. However, massive arrays are initially expected only at the BS side, likely leaving users with one or very few antennas. In this paper, we propose a novel method for single-snapshot localization and mapping in the more challenging case of a user equipped with a single-antenna receiver. The joint maximum likelihood (ML) estimation problem is formulated and its solution formally derived. To avoid the burden of a full-dimensional search over the space of the unknown parameters, we present a novel practical approach that exploits the sparsity of mmWave channels to compute an approximate joint ML estimate. A thorough analysis, including the derivation of the Cramer-Rao lower bounds, reveals that accurate localization and mapping can be achieved also in a MISO setup even when the direct line-of-sight path between the BS and the user is severely attenuated.read more
Citations
More filters
Journal ArticleDOI
5G SLAM Using the Clustering and Assignment Approach with Diffuse Multipath
TL;DR: This study considers an intermediate approach, which consists of four phases—downlink data transmission, multi-dimensional channel estimation, channel parameter clustering, and simultaneous localization and mapping (SLAM) based on a novel likelihood function.
Posted Content
RIS-aided Joint Localization and Synchronization with a Single-Antenna MmWave Receiver
TL;DR: It is shown that thanks to the use of a reconfigurable intelligent surface (RIS), joint localization and synchronization is possible with only downlink MISO transmissions and attains the Cramér-Rao lower bound even for moderate values of the system parameters.
References
More filters
Journal ArticleDOI
Channel parameter estimation in mobile radio environments using the SAGE algorithm
TL;DR: The investigations demonstrate that the SAGE algorithm is a powerful high-resolution tool that can be successfully applied for parameter extraction from extensive channel measurement data, especially for the purpose of channel modeling.
Journal ArticleDOI
Overview of Millimeter Wave Communications for Fifth-Generation (5G) Wireless Networks—With a Focus on Propagation Models
Theodore S. Rappaport,Yunchou Xing,George R. MacCartney,Andreas F. Molisch,Evangelos Mellios,Jianhua Zhang +5 more
TL;DR: Propagation parameters and channel models for understanding mmWave propagation, such as line-of-sight (LOS) probabilities, large-scale path loss, and building penetration loss, as modeled by various standardization bodies are compared over the 0.5–100 GHz range.
Journal ArticleDOI
Beamspace MIMO for Millimeter-Wave Communications: System Architecture, Modeling, Analysis, and Measurements
TL;DR: A framework for physically-accurate computational modeling and analysis of CAP-MIMO is presented, and measurement results on a DLA-based prototype for multimode line-of-sight communication are reported.
Journal ArticleDOI
Frequency Selective Hybrid Precoding for Limited Feedback Millimeter Wave Systems
Ahmed Alkhateeb,Robert W. Heath +1 more
TL;DR: A low-complexity yet near-optimal greedy frequency selective hybrid precoding algorithm is proposed based on Gram-Schmidt orthogonalization and efficient hybrid analog/digital codebooks are developed for spatial multiplexing in wideband mmWave systems.
Journal ArticleDOI
Survey of Cellular Mobile Radio Localization Methods: From 1G to 5G
TL;DR: An overview of the evolution of the various localization methods that were standardized from the first to the fourth generation of cellular mobile radio is provided, and what can be expected with the new radio and network aspects for the upcoming generation of fifth generation is looked over.