Beam Squint Assisted Joint Angle-Distance Localization for Near-Field Communications

Fuente: arXiv

Saved in:

Bibliographic Details
Main Authors:	Zhang, Aibiao, Zhang, Weizheng, Zhang, Chiya
Format:	Preprint
Published:	2025
Subjects:	Information Theory
Online Access:	Acceder al recurso
Tags:	Add Tag No Tags, Be the first to tag this record!

Suppressing Beam Squint Effect For Near-Field Wideband Communication Through Movable Antennas
by: Zhu, Yanze, et al.
Published: (2024)

Near-Field Beam Training: Joint Angle and Range Estimation with DFT Codebook
by: Wu, Xun, et al.
Published: (2023)

Beam Squinting Effects in Super Wideband Communication Systems
by: Bandara, Sachitha C., et al.
Published: (2026)

Integrated Location Sensing and Communication for Ultra-Massive MIMO With Hybrid-Field Beam-Squint Effect
by: Gao, Zhen, et al.
Published: (2024)

Joint Near Field Uplink Communication and Localization Using Message Passing-Based Sparse Bayesian Learning
by: Liu, Fei, et al.
Published: (2024)

A Flexible Design for Beam Squint Effect Suppression in IRS-Aided THz Communications
by: Zhu, Yanze, et al.
Published: (2025)

Hybrid LISA for Wideband Multiuser Millimeter Wave Communication Systems under Beam Squint
by: González-Coma, José P., et al.
Published: (2018)

Hashing Beam Training for Near-Field Communications
by: Xu, Yuan, et al.
Published: (2024)

Location-Driven Beamforming for RIS-Assisted Near-Field Communications
by: Zheng, Xiao, et al.
Published: (2024)

Joint Gaussian Beam Pattern and Its Optimization for Positioning-Assisted Systems
by: Liu, Yuanbo, et al.
Published: (2026)

Near-Field Wideband Beam Training Based on Distance-Dependent Beam Split
by: Zheng, Tianyue, et al.
Published: (2024)

Near-Field Beam Training Through Beam Diverging
by: Li, Ran, et al.
Published: (2025)

Joint Beam Scheduling and Resource Allocation for Flexible RSMA-aided Near-Field Communications
by: Zhou, Jiasi, et al.
Published: (2024)

Embracing Beam-Squint Effects for Wideband LEO Satellite Communications: A 3D Rainbow Beamforming Approach
by: Park, Juha, et al.
Published: (2025)

The Curse of Beam-Squint in ISAC: Causes, Implications, and Mitigation Strategies
by: Elbir, Ahmet M., et al.
Published: (2024)

RIS-Assisted XL-MIMO for Near-Field and Far-Field Communications
by: Cao, Xiaomin, et al.
Published: (2025)

Sparse Array Enabled Near-Field Communications: Beam Pattern Analysis and Hybrid Beamforming Design
by: Zhou, Cong, et al.
Published: (2024)

Radio Map-Enabled 3D Trajectory and Communication Optimization for Low-Altitude Air-Ground Cooperation
by: Hu, Menghao, et al.
Published: (2025)

3D Near-Field Beam Training for Uniform Planar Arrays through Beam Diverging
by: Li, Ran, et al.
Published: (2025)

Frequency Diverse (FD)-RIS-Enhanced Covert Communications: Defense Against Wiretapping via Joint Distance-Angle Beamforming
by: Xiao, Han, et al.
Published: (2025)

Frequency Diverse RIS (FD-RIS) Enhanced Wireless Communications via Joint Distance-Angle Beamforming
by: Xiao, Han, et al.
Published: (2024)

Wideband Beamforming for RIS Assisted Near-Field Communications
by: Wang, Ji, et al.
Published: (2024)

Robust and Secure Near-Field Communication via Curved Caustic Beams
by: Liu, Shicong, et al.
Published: (2026)

Knowledge and Data Dual-Driven Channel Estimation and Feedback for Ultra-Massive MIMO Systems under Hybrid Field Beam Squint Effect
by: Wang, Kuiyu, et al.
Published: (2024)

Sphere Precoding for Robust Near-Field Communications
by: Luo, Hao, et al.
Published: (2025)

Low Complexity Artificial Noise Aided Beam Focusing Design in Near-Field Terahertz Communications
by: Tang, Zhifeng, et al.
Published: (2025)

Channel Capacity of Near-Field Line-of-Sight Multiuser Communications
by: Zhao, Boqun, et al.
Published: (2024)

Trajectory Optimization for Cellular-Connected UAV in Complex Environment with Partial CKM
by: Song, Yuxuan, et al.
Published: (2025)

Rotatable Antenna Aided Mixed Near-Field and Far-Field Communications in the Upper Mid-Band: Interference Analysis and Joint Optimization
by: Zhang, Yunpu, et al.
Published: (2025)

Near-Field Integrated Sensing, Computing and Semantic Communication in Digital Twin-Assisted Vehicular Networks
by: Yang, Yinchao, et al.
Published: (2026)

Joint Optimization of Data- and Model-Driven Probing Beams and Beam Predictor
by: Lu, Tianheng, et al.
Published: (2024)

Near-Field Communication with Massive Movable Antennas: A Functional Perspective
by: Liu, Shicong, et al.
Published: (2025)

Near-Far Field Codebook Design for IOS-Aided Multi-User Communications
by: Zhang, Shupei, et al.
Published: (2024)

Near Field Communications for DMA-NOMA Networks
by: Zhang, Zheng, et al.
Published: (2024)

Multi-Subarray FD-RIS Enhanced Multi-user Wireless Networks: With Joint Distance-Angle Beamforming
by: Xiao, Han, et al.
Published: (2025)

Wideband Beamforming for Near-Field Communications with Circular Arrays
by: Guo, Yunhui, et al.
Published: (2024)

Joint Near-Field Target Tracking and Communications with Full Duplex Holographic MIMO
by: Gavras, Ioannis, et al.
Published: (2024)

A Two-Dimensional Super-Resolution Method for Reconfigurable Intelligent Surface-Assisted Near-Field Localization
by: Xi, Feng, et al.
Published: (2025)

Hybrid-Field Joint Channel and Visible Region Estimation for RIS-Assisted Communications
by: Tuo, Xiaokun, et al.
Published: (2026)

if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); $count++; } } return $count; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

Environment & details:

GET Data empty

POST Data empty

Files empty

Key	Value
language	"en"
VUFIND_SESSION	"49062395be40deb956abfb26a54e795d"
ui	"standard"

Session

Key	Value
__Laminas	array:2 [`"_REQUEST_ACCESS_TIME" => 1790812525.5974 "_VALID" => array:1 [ "Laminas\Session\Validator\Id" => "49062395be40deb956abfb26a54e795d" ]`]
SessionState	Laminas\Stdlib\ArrayObject {#938}
FlashMessenger	Laminas\Stdlib\ArrayObject {#1433}
SessionHelper	Laminas\Stdlib\ArrayObject {#1759}

Server/Request Data

Key	Value
REDIRECT_VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
REDIRECT_HTTPS	"on"
REDIRECT_SSL_TLS_SNI	"info.umar.mx"
REDIRECT_STATUS	"200"
VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
HTTPS	"on"
SSL_TLS_SNI	"info.umar.mx"
HTTP_ACCEPT	"/"
HTTP_USER_AGENT	"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
HTTP_COOKIE	"language=en; VUFIND_SESSION=49062395be40deb956abfb26a54e795d; ui=standard"
HTTP_ACCEPT_ENCODING	"gzip, br, zstd, deflate"
HTTP_HOST	"info.umar.mx"
PATH	"/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/snap/bin"
SERVER_SIGNATURE	"<address>Apache/2.4.66 (Ubuntu) Server at info.umar.mx Port 443</address>\n"
SERVER_SOFTWARE	"Apache/2.4.66 (Ubuntu)"
SERVER_NAME	"info.umar.mx"
SERVER_ADDR	"200.23.222.19"
SERVER_PORT	"443"
REMOTE_ADDR	"216.73.216.147"
DOCUMENT_ROOT	"/usr/local/vufind/public"
REQUEST_SCHEME	"https"
CONTEXT_PREFIX	""
CONTEXT_DOCUMENT_ROOT	"/usr/local/vufind/public"
SERVER_ADMIN	"admin@localhost"
SCRIPT_FILENAME	"/usr/local/vufind/public/index.php"
REMOTE_PORT	"10666"
REDIRECT_URL	""" /Record/\n arxiv_https___arxiv_org_abs_2509_14850/Similar """
GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/Record/%0Aarxiv_https___arxiv_org_abs_2509_14850/Similar"
SCRIPT_NAME	"/index.php"
PHP_SELF	"/index.php"
REQUEST_TIME_FLOAT	1790812525.5764
REQUEST_TIME	1790812525

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

Environment & details:

GET Data empty

POST Data empty

Files empty

Key	Value
language	"en"
VUFIND_SESSION	"49062395be40deb956abfb26a54e795d"
ui	"standard"

Session

Key	Value
__Laminas	array:2 [`"_REQUEST_ACCESS_TIME" => 1790812525.5974 "_VALID" => array:1 [ "Laminas\Session\Validator\Id" => "49062395be40deb956abfb26a54e795d" ]`]
SessionState	Laminas\Stdlib\ArrayObject {#938}
FlashMessenger	Laminas\Stdlib\ArrayObject {#1433}
SessionHelper	Laminas\Stdlib\ArrayObject {#1759}

Server/Request Data

Key	Value
REDIRECT_VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
REDIRECT_HTTPS	"on"
REDIRECT_SSL_TLS_SNI	"info.umar.mx"
REDIRECT_STATUS	"200"
VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
HTTPS	"on"
SSL_TLS_SNI	"info.umar.mx"
HTTP_ACCEPT	"/"
HTTP_USER_AGENT	"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
HTTP_COOKIE	"language=en; VUFIND_SESSION=49062395be40deb956abfb26a54e795d; ui=standard"
HTTP_ACCEPT_ENCODING	"gzip, br, zstd, deflate"
HTTP_HOST	"info.umar.mx"
PATH	"/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/snap/bin"
SERVER_SIGNATURE	"<address>Apache/2.4.66 (Ubuntu) Server at info.umar.mx Port 443</address>\n"
SERVER_SOFTWARE	"Apache/2.4.66 (Ubuntu)"
SERVER_NAME	"info.umar.mx"
SERVER_ADDR	"200.23.222.19"
SERVER_PORT	"443"
REMOTE_ADDR	"216.73.216.147"
DOCUMENT_ROOT	"/usr/local/vufind/public"
REQUEST_SCHEME	"https"
CONTEXT_PREFIX	""
CONTEXT_DOCUMENT_ROOT	"/usr/local/vufind/public"
SERVER_ADMIN	"admin@localhost"
SCRIPT_FILENAME	"/usr/local/vufind/public/index.php"
REMOTE_PORT	"10666"
REDIRECT_URL	""" /Record/\n arxiv_https___arxiv_org_abs_2509_14850/Similar """
GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/Record/%0Aarxiv_https___arxiv_org_abs_2509_14850/Similar"
SCRIPT_NAME	"/index.php"
PHP_SELF	"/index.php"
REQUEST_TIME_FLOAT	1790812525.5764
REQUEST_TIME	1790812525

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

Similar Items

Similar Items

Environment & details:

Environment & details: