LEO Satellite-Enabled Random Access with Large Differential Delay and Doppler Shift

Authors: Shen, Boxiao, Wu, Yongpeng, Zhang, Wenjun, Chatzinotas, Symeon, Ottersten, Björn

Subject Terms: Computer Science - Information Theory, Electrical Engineering and Systems Science - Signal Processing

Access URL: http://arxiv.org/abs/2412.20806

Massive MIMO-OTFS-Based Random Access for Cooperative LEO Satellite Constellations

Authors: Shen, Boxiao, Wu, Yongpeng, Gong, Shiqi, Liu, Heng, Ottersten, Björn, Zhang, Wenjun

Subject Terms: Computer Science - Information Theory, Electrical Engineering and Systems Science - Signal Processing

Access URL: http://arxiv.org/abs/2408.02586

Ubiquitous Integrated Sensing and Communications for Massive MIMO LEO Satellite Systems

Authors: You, Li, Zhu, Yongxiang, Qiang, Xiaoyu, Tsinos, Christos G., Wang, Wenjin, Gao, Xiqi, Ottersten, Björn

Source: IEEE Internet of Things Magazine, vol. 7, no. 4, pp. 30-35, Jul. 2024

Subject Terms: Electrical Engineering and Systems Science - Signal Processing, Computer Science - Information Theory

Access URL: http://arxiv.org/abs/2407.05029

Enhancing Indoor and Outdoor THz Communications with Beyond Diagonal-IRS: Optimization and Performance Analysis

Authors: Mahmood, Asad, Vu, Thang X., Chatzinotas, Symeon, Ottersten, Björn

Subject Terms: Electrical Engineering and Systems Science - Signal Processing

Access URL: http://arxiv.org/abs/2403.17913

Integrated Communications and Localization for Massive MIMO LEO Satellite Systems

Authors: You, Li, Qiang, Xiaoyu, Zhu, Yongxiang, Jiang, Fan, Tsinos, Christos G., Wang, Wenjin, Wymeersch, Henk, Gao, Xiqi, Ottersten, Björn

Source: IEEE Transactions on Wireless Communications, vol. 23, no. 9, pp. 11061-11075, Sep. 2024

Subject Terms: Computer Science - Information Theory, Electrical Engineering and Systems Science - Signal Processing

Access URL: http://arxiv.org/abs/2403.07305

Joint Computation and Communication Resource Optimization for Beyond Diagonal UAV-IRS Empowered MEC Networks

Authors: Mahmood, Asad, Vu, Thang X., Khan, Wali Ullah, Chatzinotas, Symeon, Ottersten, Björn

Subject Terms: Electrical Engineering and Systems Science - Signal Processing

Access URL: http://arxiv.org/abs/2311.07199

Deep Reinforcement Learning for Backscatter Communications: Augmenting Intelligence in Future Internet of Things

Authors: Khan, Wali Ullah, Lagunas, Eva, Ali, Zain, Mahmood, Asad, Sheemar, Chandan Kumar, Ahmed, Manzoor, Chatzinotas, Symeon, Ottersten, Björn

Subject Terms: Electrical Engineering and Systems Science - Signal Processing

Access URL: http://arxiv.org/abs/2309.12507

Reconfigurable Intelligent Surfaces for 6G Non-Terrestrial Networks: Assisting Connectivity from the Sky

Authors: Khan, Wali Ullah, Mahmood, Asad, Sheemar, Chandan Kumar, Lagunas, Eva, Chatzinotas, Symeon, Ottersten, Björn

Subject Terms: Electrical Engineering and Systems Science - Signal Processing

Access URL: http://arxiv.org/abs/2309.02859

Perpetual Reconfigurable Intelligent Surfaces Through In-Band Energy Harvesting: Architectures, Protocols, and Challenges

Authors: Ntontin, Konstantinos, Boulogeorgos, Alexandros-Apostolos A., Abadal, Sergi, Mesodiakaki, Agapi, Chatzinotas, Symeon, Ottersten, Björn

Subject Terms: Computer Science - Information Theory

Access URL: http://arxiv.org/abs/2308.08267

Full Duplex Joint Communications and Sensing for 6G: Opportunities and Challenges

Authors: Sheemar, Chandan Kumar, Solanki, Sourabh, Alexandropoulos, George C., Lagunas, Eva, Querol, Jorge, Chatzinotas, Symeon, Ottersten, Björn

Subject Terms: Computer Science - Information Theory, Electrical Engineering and Systems Science - Signal Processing

Access URL: http://arxiv.org/abs/2308.07266

Joint Device Identification, Channel Estimation, and Signal Detection for LEO Satellite-Enabled Random Access

Authors: Shen, Boxiao, Wu, Yongpeng, Zhang, Wenjun, Chatzinotas, Symeon, Ottersten, Björn

Subject Terms: Computer Science - Information Theory, Electrical Engineering and Systems Science - Signal Processing

Access URL: http://arxiv.org/abs/2308.03556

Performance of Joint Symbol Level Precoding and RIS Phase Shift Design in the Finite Block Length Regime with Constellation Rotation

Authors: Zivuku, Progress, Kisseleff, Steven, Martins, Wallace A., Al-hraishawi, Hayder, Chatzinotas, Symeon, Ottersten, Björn

Subject Terms: Computer Science - Information Theory, Electrical Engineering and Systems Science - Signal Processing

Access URL: http://arxiv.org/abs/2308.01033

Reconfigurable Intelligent Surfaces Enhanced NOMA D2D Communications Underlaying UAV Networks

Authors: Khan, Wali Ullah, Lagunas, Eva, Mahmood, Asad, Ali, Zain, Chatzinotas, Symeon, Ottersten, Björn

Subject Terms: Electrical Engineering and Systems Science - Signal Processing

Access URL: http://arxiv.org/abs/2307.16086

Harnessing the Power of Swarm Satellite Networks with Wideband Distributed Beamforming

Authors: Duncan, Juan Carlos Merlano, Ha, Vu Nguyen, Krivochiza, Jevgenij, Palisetty, Rakesh, Eappen, Geoffrey, Vasquez, Juan Andres, Martins, Wallace Alves, Chatzinotas, Symeon, Ottersten, Björn

Subject Terms: Electrical Engineering and Systems Science - Signal Processing

Access URL: http://arxiv.org/abs/2307.04589

RIS-Assisted Energy-Efficient LEO Satellite Communications with NOMA

Authors: Khan, Wali Ullah, Lagunas, Eva, Mahmood, Asad, Chatzinotas, Symeon, Ottersten, Björn

Subject Terms: Electrical Engineering and Systems Science - Signal Processing

Access URL: http://arxiv.org/abs/2306.10422

Joint Optimization of 3D Placement and Radio Resource Allocation for per-UAV Sum Rate Maximization

Authors: Mahmood, Asad, Vu, Thang X., Chatzinotas, Symeon, Ottersten, Björn

Subject Terms: Electrical Engineering and Systems Science - Signal Processing

Access URL: http://arxiv.org/abs/2305.04519

Multi-Objective Optimization for 3D Placement and Resource Allocation in OFDMA-based Multi-UAV Networks

Authors: Mahmood, Asad, Vu, Thang X., Sharma, Shree Krishna, Chatzinotas, Symeon, Ottersten, Björn

Subject Terms: Electrical Engineering and Systems Science - Signal Processing

Access URL: http://arxiv.org/abs/2304.12798

Quasi-Synchronous Random Access for Massive MIMO-Based LEO Satellite Constellations

Authors: Ying, Keke, Gao, Zhen, Chen, Sheng, Zhou, Mingyu, Zheng, Dezhi, Chatzinotas, Symeon, Ottersten, Björn, Poor, H. Vincent

Subject Terms: Computer Science - Information Theory, Electrical Engineering and Systems Science - Signal Processing

Access URL: http://arxiv.org/abs/2304.04484

Energy-Efficient RIS-Enabled NOMA Communication for 6G LEO Satellite Networks

Authors: Khan, Wali Ullah, Lagunas, Eva, Mahmood, Asad, Chatzinotas, Symeon, Ottersten, Björn

Subject Terms: Electrical Engineering and Systems Science - Signal Processing

Access URL: http://arxiv.org/abs/2303.05588

Space-Terrestrial Cooperation Over Spatially Correlated Channels Relying on Imperfect Channel Estimates: Uplink Performance Analysis and Optimization

Authors: Van Chien, Trinh, Lagunas, Eva, Hoang, Tiep M., Chatzinotas, Symeon, Ottersten, Björn, Hanzo, Lajos

Subject Terms: Computer Science - Information Theory, Electrical Engineering and Systems Science - Signal Processing

Access URL: http://arxiv.org/abs/2212.10828