A5004649002- Advanced Wireless Communication Technologies
- Advanced MIMO Systems Optimization
- Satellite Communication Systems
- Energy Harvesting in Wireless Networks
- Cooperative Communication and Network Coding
- Cognitive Radio Networks and Spectrum Sensing
- Full-Duplex Wireless Communications
- UAV Applications and Optimization
- Wireless Communication Security Techniques
- IoT Networks and Protocols
- Wireless Communication Networks Research
- Optical Wireless Communication Technologies
- Hematopoietic Stem Cell Transplantation
- Smart Grid Energy Management
- Advanced Wireless Network Optimization
- Spacecraft Design and Technology
- T-cell and B-cell Immunology
- Multiple Myeloma Research and Treatments
- Epigenetics and DNA Methylation
- Microgrid Control and Optimization
- Underwater Vehicles and Communication Systems
- Advanced Wireless Communication Techniques
- Smart Grid Security and Resilience
- Cancer Genomics and Diagnostics
- Chaos-based Image/Signal Encryption
University of California, Santa Cruz
2022-2025
Lund University
2021-2024
COMSATS University Islamabad
2016-2022
Stem Cell Institute
2022
Institute for Stem Cell Biology and Regenerative Medicine
2020
Unmanned Aerial Vehicles (UAVs) are an important component of next-generation wireless networks that can assist in high data rate communications and provide enhanced coverage.Their mobility aerial nature offer deployment flexibility low-cost infrastructure support to existing cellular many applications rely on mobile communications.However, security is a major challenge UAV communications, Physical Layer Security (PLS) technique improve the reliability shared with assistance UAVs.Recently,...
Automotive-Industry 5.0 will use emerging 6G communications to provide robust, computationally intelligent, and energy-efficient data sharing among various onboard sensors, vehicles, other intelligent transportation system entities. Nonorthogonal multiple access (NOMA) backscatter are two key techniques of for enhanced spectrum energy efficiency. In this article, we an introduction green also discuss the advantages using NOMA in Automotive Industry 5.0. We briefly review recent work area...
Low Earth Orbit (LEO) satellite communication (SatCom) has drawn particular attention recently due to its high data rate services and low round-trip latency. It launching manufacturing costs than Medium (MEO) Geostationary (GEO) satellites. Moreover, LEO SatCom the potential provide global coverage with a high-speed transmission However, spectrum scarcity might be one of challenges in growth satellites, impacting severe restrictions on developing ground-space integrated networks. To address...
Reflecting intelligent surfaces (RIS) has gained significant attention due to its high energy and spectral efficiency in next-generation wireless networks. By using low-cost passive reflecting elements, RIS can smartly reconfigure the signal propagation extend communication coverage. On other hand, non-orthogonal multiple access (NOMA) been proven as a key air interface technique for supporting massive connections over limited resources. Utilizing superposition coding successive interference...
In this manuscript, we propose an energy-efficient optimization framework for a multi-cluster simultaneous transmitting and reflecting intelligent surfaces (STAR-IRS) enabled time-division multiple-access (TDMA) based hybrid-NOMA system to realize the future sixth-generation (6G) wireless communication systems. Specifically, energy-efficiency maximization is achieved by optimizing successive-interference cancellation (SIC) decoding order, time-allocation, active-beamforming vectors at...
Abstract Multiple myeloma (MM) is an incurable malignancy of plasma cells. Epidemiological studies indicate a substantial heritable component, but the underlying mechanisms remain unclear. Here, in genome-wide association study totaling 10,906 cases and 366,221 controls, we identify 35 MM risk loci, 12 which are novel. Through functional fine-mapping Mendelian randomization, uncover two causal for inherited risk: longer telomeres; elevated levels B-cell maturation antigen (BCMA)...
In this paper, we present a joint power allocation and adaptive link selection protocol for an orthogonal frequency division multiplexing (OFDM)-based network consists of one source node i.e., base station (BS), destination (MU) buffer aided decode forward (DF) relay node. Our objective is to maximize the average throughput system via loading over different subcarriers at nodes. A separate budget assumed each transmitting make more practical. order form our solution tractable, decomposition...
The future generation of wireless communication networks demands for high spectral efficiency to accommodate a large number devices over the limited available frequency spectrum. Device device (D2D) systems exploit channel reuse offer and reduce burden on infrastructure by facilitating between without involving base station. We can further enhance D2D employing non-orthogonal multiple access (NOMA) transmission signals. In NOMA signals users are transmitted same channel, simultaneously....
To support the massive connectivity in Internet of Things (IoT), several promising techniques like cognitive radio (CR) and non-orthogonal multiple access (NOMA) enables user to share spectrum resources. This work aims achieve fairness among secondary users (SUs) IoT cooperative NOMA-based CR transmission. We design a power allocation algorithm, an independent battery constraint at each node is considered, gap transmissions two NOMA applied for successive interference cancellation. The...
Future wireless networks are expected to connect large-scale low-powered communication devices using the available spectrum resources. Backscatter communications (BC) is an emerging technology towards battery-free transmission in future by leveraging ambient radio frequency (RF) waves that enable among devices. Non-orthogonal multiple access (NOMA) has recently drawn significant attention due its high spectral efficiency. The combination of these two technologies can play important role...
The issue of spectrum scarcity in wireless networks is becoming prominent and critical with each passing year. Although several promising solutions have been proposed to provide a solution scarcity, most them many associated tradeoffs. In this context, one the emerging ideas relates utilization cognitive radios (CR) for future heterogeneous (HetNets). This paper provides marriage two candidates (i.e., CR HetNets) beyond fifth generation (5G) networks. More specifically, joint power...
Low Earth orbit (LEO) satellite communication has drawn particular attention recently due to its high data rate services and low round-trip latency. It is low-cost launch can provide global coverage. However, the spectrum scarcity might be one of critical challenges in growth LEO satellites, impacting severe restrictions on development ground-space integrated networks. To address this issue, we propose splitting multiple access (RSMA) for cognitive radio (CR) enabled nongeostationary...
Abstract Nonorthogonal multiple access (NOMA) has been recognized as a key solution to fulfill the demands of 5G wireless communication. In this paper, our aim is maximize fairness in data rates different users multiuser NOMA system. We optimize downlink transmission subject minimum rate requirement each user, limited power budget at transmitter, and successive interference cancelation constraint. First, we solve problem for two‐user scenario where nonconvex transformed into standard convex...
The energy harvesting cognitive radio networks (EH-CRNs) are expected to play a key role in satisfying the demands of next generation wireless communications. In underlay CRN, secondary base station (SBS) is prohibited transmit at high power keep interference temperature within acceptable limits. Thus, transmission user (SU) located far away from SBS may not be possible. this paper, we investigate cooperative EH-CRNs where an SU close harvests and helps relaying data distant SU. aim maximize...
In recent years, the concept of non-orthogonal multiple access (NOMA) has gathered much attention due to its potential offer high spectral efficiency, present user fairness and grant free sixth generation (6G) vehicular networks. This paper proposes a new optimization framework for NOMA-enabled cooperative network. particular, we jointly optimize vehicle paring, channel assignment, power allocation at source relaying vehicles. The objective is maximize sum rate system subject allocation,...
Abstract In this paper, we study the physical layer security problem in dual‐hop orthogonal frequency division multiplexing–based wireless communication system. First, consider a single‐user single‐relay system and joint power optimization at source relay subject to individual constraint 2 nodes. The aim is maximize end‐to‐end secrecy rate with optimal allocation over different subcarriers. Later, more general multiuser multirelay scenario. Under high signal‐to‐noise ratio approximation for...
The modern cellular technologies are expected to provide high data rates and massive connectivity in fifth generation (5G) systems; however, this may be impossible through traditional radio access techniques. Recently, non-orthogonal multiple (NOMA) has emerged as one of the promising techniques for communications with its ability users network over same system resources. This paper studies resource management problem downlink transmission multiuser NOMA system. Our objective is optimize...
The fifth generation (5G) wireless communication systems promise to provide massive connectivity over the limited available spectrum. Various new transmission paradigms such as non-orthogonal multiple access (NOMA) and cognitive radio (CR) have emerged potential 5G enabling technologies. These techniques offer high spectral efficiency by allowing users communicate on same frequency channel, simultaneously. A combination of both may further enhance performance system. This work aims maximize...
Plant salt tolerance is controlled by various physiological processes such as water and ion homeostasis, photosynthesis, cellular redox balance, which are in turn gene expression. In the present study, plants of six canola cultivars (DGL, Dunkled, Faisal Canola, Cyclone, Legend, Oscar) were evaluated for subjecting them to 0 or 200 mM NaCl stress. Based on growth, DGL, Canola ranked tolerant, while Oscar salt-sensitive ones. Differential these was found be associated with a relatively lower...