Search Results - "Khalighi, Mohammad Ali"
-
1
Angular MIMO for Underwater Wireless Optical Communications: Link Modeling and Tracking
Published in IEEE journal of oceanic engineering (01-10-2021)“…Angular imaging multiple-input--multiple-output (A-MIMO) is investigated for short-range, high-speed underwater wireless optical communications (UWOCs) where,…”
Get full text
Journal Article -
2
Dimming-Aware Interference Mitigation for NOMA-Based Multi-Cell VLC Networks
Published in IEEE communications letters (01-11-2020)“…This letter proposes inter-cell interference mitigation in a dimming-aware way for multi-cell visible-light communication networks, through efficient…”
Get full text
Journal Article -
3
UAV Location Optimization in MISO ZF Pre-Coded VLC Networks
Published in IEEE wireless communications letters (01-01-2022)“…Use of unmanned aerial vehicles (UAVs) to provide on-demand communications has been receiving growing interest, especially for use in remote and hard-to-reach…”
Get full text
Journal Article -
4
Energy Efficient Cooperative Communications in Aggregated VLC/RF Networks with NOMA
Published in IEEE transactions on communications (01-09-2023)“…Optimizing the energy efficiency (EE) of wireless networks is one of the key priorities in the design of beyond 5G mobile technologies. In this pursuit, the…”
Get full text
Journal Article -
5
Underwater Wireless Optical Communications Using Silicon Photo-Multipliers
Published in IEEE photonics journal (01-08-2017)“…We study the use of Silicon photo-multipliers (SiPMs) for underwater wireless optical communications (UWOC) and discuss their main interests and drawbacks,…”
Get full text
Journal Article -
6
Channel Characterization and Modeling for Optical Wireless Body-Area Networks
Published in IEEE open journal of the Communications Society (01-01-2020)“…We address channel characterization and modeling for medical wireless body-area networks (WBANs) based on the optical wireless technology. We focus on the…”
Get full text
Journal Article -
7
PAM- and CAP-Based Transmission Schemes for Visible-Light Communications
Published in IEEE access (01-01-2017)“…Visible light communications (VLCs) have received extensive attention in the research community thanks to their advantages of high bandwidth, low cost,…”
Get full text
Journal Article -
8
Quantized Feedback-Based Differential Signaling for Free-Space Optical Communication System
Published in IEEE transactions on communications (01-12-2016)“…We propose a quantized feedback-based differential signaling scheme for 2 × 1 free space optical (FSO) multiple-input single-output communication systems. The…”
Get full text
Journal Article -
9
Survey on Free Space Optical Communication: A Communication Theory Perspective
Published in IEEE Communications surveys and tutorials (01-01-2014)“…Optical wireless communication (OWC) refers to transmission in unguided propagation media through the use of optical carriers, i.e., visible, infrared (IR),…”
Get full text
Journal Article -
10
Under-Sea Ice Diffusing Optical Communications
Published in IEEE access (2021)“…In this paper, we propose a novel approach to establish a reliable high-speed broadcast communication link between a group of autonomous underwater vehicles…”
Get full text
Journal Article -
11
Impact of link parameters and channel correlation on the performance of FSO systems with the differential signaling technique
Published in Journal of optical communications and networking (01-02-2017)“…We investigate the effects of link parameters and the channel correlation coefficient on the detection threshold, Q-factor, and bit-error-rate (BER) of a…”
Get full text
Journal Article -
12
Performance Analysis of Optical-CDMA for Uplink Transmission in Medical Extra-WBANs
Published in IEEE access (2020)“…This paper considers the use of infrared wireless communications for uplink transmission in extra wireless body-area networks. We focus on a multi-user medical…”
Get full text
Journal Article -
13
RSMA Inspired User Cooperation in Hybrid VLC/RF Networks for Coverage Extension
Published in 2023 IEEE Wireless Communications and Networking Conference (WCNC) (01-03-2023)“…In this paper, we propose and evaluate a hybrid visible light communication (VLC)/radio-frequency (RF) network architecture, where a VLC access point serves…”
Get full text
Conference Proceeding -
14
Silicon-Photomultiplier-Based Underwater Wireless Optical Communication Using Pulse-Amplitude Modulation
Published in IEEE journal of oceanic engineering (01-10-2020)“…Emerging maritime applications arising from the continued growth of the marine economy have an inherent need for high data rate underwater wireless links…”
Get full text
Journal Article -
15
Differential Signalling in Free-Space Optical Communication Systems
Published in Applied sciences (25-05-2018)“…Knowing that for GG distribution, we have [41,42] E[hn]=(abh0)−nΓ(a+n)Γ(b+n)Γ(a)Γ(b), then it is easy to show that Mean(hi)=h0, Var(hi)=h0 2(1a+1b+1ab)…”
Get full text
Journal Article -
16
Approximation to the Sum of Two Correlated Gamma-Gamma Variates and its Applications in Free-Space Optical Communications
Published in IEEE wireless communications letters (01-12-2012)“…The Gamma-Gamma (ΓΓ) distribution is popularly accepted for modeling the received intensity fluctuations in the near-ground free-space optical (FSO)…”
Get full text
Journal Article -
17
Efficient signal detection for cognitive radio relay networks under imperfect channel estimation
Published in Transactions on emerging telecommunications technologies (01-11-2016)“…Assuming imperfect channel knowledge at the destination, we propose an improved detector for an underlay cognitive (secondary) amplify‐and‐forward wireless…”
Get full text
Journal Article -
18
Special Issue on: Optical Wireless Communications for Emerging Connectivity Requirements
Published in IEEE open journal of the Communications Society (2021)“…The Increasing number of smart devices in different forms and capabilities combined with the worldwide adoption of advanced multimedia applications are…”
Get full text
Journal Article -
19
Investigation of solar noise impact on the performance of underwater wireless optical communication links
Published in Optics express (31-10-2016)“…We investigate the effect of environmental noise, caused by solar radiations under water, on the performance of underwater wireless optical communication…”
Get full text
Journal Article -
20
Parameter Optimization for an Underwater Optical Wireless Vertical Link Subject to Link Misalignments
Published in IEEE journal of oceanic engineering (01-10-2021)“…We consider transmitter-receiver (Tx-Rx) parameter optimization for a vertical underwater wireless optical communication link under misalignment conditions…”
Get full text
Journal Article