2k citations · 2.7k across the 22 of their papers we have counts for
19 papers · 1 filter
Performance Analysis and Optimization of Multi-RIS-Aided UAV Networks
Khaled Alshehri, Anas M. Salhab, Ali Arshad Nasir
In this paper, we study the performance of multiple reconfigurable intelligent surfaces (RISs)-aided unmanned aerial vehicle (UAV) communication networks over Nakagami- fading c…
Multiple RISs-Aided Networks: Performance Analysis and Optimization
Mahmoud Aldababsa, Anas M. Salhab, Ali Arshad Nasir +2
This paper analyzes the performance of multiple reconfigurable intelligent surfaces (RISs)-aided networks. The paper also provides some optimization results on the number of reflec…
Relay Selection & Power Allocation for Maximizing Sum-Throughput of a Buffered Relay Network
F. A. Khan, Z. A. Malik, A. A. Nasir +1
Considering two-hop cooperative communication with buffered half-duplex relays, this work jointly optimizes relay selection and transmit power at the relay to maximize the sum-thro…
Full-Duplex MIMO-OFDM Communication with Self-Energy Recycling
Ali A. Nasir, H. D. Tuan, T. Q. Duong +1
This paper focuses on energy recycling in full-duplex (FD) relaying multiple-input-multiple-output orthogonal frequency division multiplexing (OFDM) communication. The loop self-in…
UAV-Enabled Communication Using NOMA
Ali A. Nasir, Hoang D. Tuan, Trung Q. Duong +1
Unmanned aerial vehicles (UAVs) can be deployed as flying base stations (BSs) to leverage the strength of line-of-sight connections and effectively support the coverage and through…
NOMA for throughput and EE maximization in Energy Harvesting Enabled Networks
A. A. Nasir, H. D. Tuan, T. Q. Duong +1
Wireless power transfer via radio-frequency (RF) radiation is regarded as a potential solution to energize energy-constrained users, who are deployed close to the base stations (ne…
Power Allocation for Energy Efficiency and Secrecy of Interference Wireless Networks
Zhichao Sheng, Hoang Duong Tuan, Ali Arshad Nasir +2
Considering a multi-user interference network with an eavesdropper, this paper aims at the power allocation to optimize the worst secrecy throughput among the network links or the…
Secure and Energy-Efficient Beamforming for Simultaneous Information and Energy Transfer
Ali A. Nasir, Hoang D. Tuan, Trung Q. Duong +1
Next-generation communication networks will likely involve the energy-efficient transfer of information and energy over the same wireless channel, for which the physical layer will…
A Multiband OFDMA Heterogeneous Network for Millimeter Wave 5G Wireless Applications
Solmaz Niknam, Ali A. Nasir, Hani Mehrpouyan +1
Emerging fifth generation (5G) wireless networks require massive bandwidth in higher frequency bands, extreme network densities, and flexibility of supporting multiple wireless tec…
Path-Following Algorithms for Beamforming and Signal Splitting in RF Energy Harvesting Networks
Ali A. Nasir, Hoang D. Tuan, Duy T. Ngo +2
We consider the joint design of transmit beamforming and receive signal-splitting ratios in the downlink of a wireless network with simultaneous radio-frequency (RF) information an…
Superimposed Signaling Inspired Channel Estimation in Full-Duplex Systems
Abbas Koohian, Hani Mehrpouyan, Ali A. Nasir +3
Residual self-interference (SI) cancellation in the digital baseband is an important problem in full-duplex (FD) communication systems. In this paper, we propose a new technique fo…
Mode Selection, Resource Allocation and Power Control for D2D-Enabled Two-Tier Cellular Network
Yifei Huang, Ali A. Nasir, Salman Durrani +1
This paper proposes a centralized decision making framework at the macro base station (MBS) for device to device (D2D) communication underlaying a two-tier cellular network. We con…
Timing and Carrier Synchronization in Wireless Communication Systems: A Survey and Classification of Research in the Last Five Years
A. A. Nasir, S. Durrani, H. Mehrpouyan +2
Timing and carrier synchronization is a fundamental requirement for any wireless communication system to work properly. Timing synchronization is the process by which a receiver no…
Joint Resource Optimization for Multicell Networks with Wireless Energy Harvesting Relays
Ali A. Nasir, Duy T. Ngo, Xiangyun Zhou +2
This paper first considers a multicell network deployment where the base station (BS) of each cell communicates with its cell-edge user with the assistance of an amplify-and-forwar…
Channel, Phase Noise, and Frequency Offset in OFDM Systems: Joint Estimation, Data Detection, and Hybrid Cramer-Rao Lower Bound
Omar H. Salim, Ali A. Nasir, Hani Mehrpouyan +3
Oscillator phase noise (PHN) and carrier frequency offset (CFO) can adversely impact the performance of orthogonal frequency division multiplexing (OFDM) systems, since they can re…
Wireless-Powered Relays in Cooperative Communications: Time-Switching Relaying Protocols and Throughput Analysis
Ali Arshad Nasir, Xiangyun Zhou, Salman Durrani +1
We consider wireless-powered amplify-and-forward and decode-and-forward relaying in cooperative communications, where an energy constrained relay node first harvests energy through…
Training-Based Synchronization and Channel Estimation in AF Two-Way Relaying Networks
Ali Arshad Nasir, Hani Mehrpouyan, Salman Durrani +2
Two-way relaying networks (TWRNs) allow for more bandwidth efficient use of the available spectrum since they allow for simultaneous information exchange between two users with the…
Joint Phase Noise Estimation and Data Detection in Coded MIMO Systems
Arif O. Isikman, Hani Mehrpouyan, Ali A. Nasir +2
In this paper, the problem of joint oscillator phase noise (PHN) estimation and data detection for multi-input multi-output (MIMO) systems using bit-interleaved coded modulation (B…
Relaying Protocols for Wireless Energy Harvesting and Information Processing
A. A. Nasir, X. Zhou, S. Durrani +1
An emerging solution for prolonging the lifetime of energy constrained relay nodes in wireless networks is to avail the ambient radio-frequency (RF) signal and to simultaneously ha…