Başlık için Bildiri Koleksiyonu listeleme
Toplam kayıt 200, listelenen: 136-155
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On fair interference management in cognitive radio networks
(Institute of Electrical and Electronics Engineers Inc., 2017)In this paper, we consider power optimization problem in cognitive radio (CR) networks. The aim is to protect the licensed primary users (PUs) from unequal performance degradation by secondary users (SUs). A min-max ... -
On reducing multiband spectrum sensing duration for cognitive radio networks
(Institute of Electrical and Electronics Engineers Inc., 2016)In this work, the total spectrum sensing duration required for cognitive radios in multiband environments is studied to minimize the reactive handoff latency. Two spectrum sensing strategies, namely window-based and ... -
On the inherent physical-layer security of receive spatial modulation systems
(Institute of Electrical and Electronics Engineers Inc., 2020)This paper investigates the physical-layer security attained by Receive Spatial Modulation (RSM) scheme against potential eavesdroppers. The impact of the involved parameters on the bit error rate (BER) at the legitimate ... -
On the performance of handover mechanisms for non-terrestrial networks
(Institute of Electrical and Electronics Engineers Inc., 2022)Next-generation wireless networks require massive connectivity and ubiquitous coverage, for which non-terrestrial networks (NTNs) are a promising enabler. However, NTNs, especially non-geostationary satellites bring about ... -
On the performance of subcarrier allocation techniques for multiuser OFDM cognitive networks with reconfigurable antennas
(Institute of Electrical and Electronics Engineers Inc., 2014)Reconfigurable antennas (RA) have been viewed as a hardware-efficient alternative solution to multiple-input multiple-output systems whereby network users can vary the antenna radiation patterns using a single antenna ... -
Optimization of aerial base station location in LAP for disaster situations
(Institute of Electrical and Electronics Engineers, 2015)Aerial telecommunication platforms will be a part of the future communication networks. In this paper, we address the issue of optimizing the location of Aerial Base Stations (ABS) in Low Altitude Platforms (LAP) to minimize ... -
Optimization of antenna beamwidth under blockage ımpact in millimeter-wave bands
(Institute of Electrical and Electronics Engineers Inc., 2018)In this paper, beam expansion and optimization approach is proposed as a solution to alleviate blockage impact at millimeter wave (mm-wave) frequency bands. Directional communication in mm-wave bands provides opportunities ... -
Optimizing D2D transmission for secure and reliable smart grid communication
(IEEE Computer Society, 2017)Smart grid (SG) has been recognized as a promising solution to manage and distribute electricity in the next generation power systems. The large number of devices in power systems make the wired communication a non feasible ... -
Orthogonal coexistence of overlapped radar and communication waveforms
(Institute of Electrical and Electronics Engineers Inc., 2022)With revolutionary new services and applications, integrated sensing and communication has been essential for recent and future wireless communication systems. For the communication systems, the cyclic prefix - orthogonal ... -
Orthogonal frequency division multiplexing with subcarrier gap modulation
(Institute of Electrical and Electronics Engineers Inc., 2020)A new modulation scheme called orthogonal frequency division multiplexing with subcarrier gap modulation (OFDM-SGM) is proposed. The proposed scheme embeds extra information bits by exploiting the gap between the active ... -
OTFS-FMCW waveform design for low complexity joint sensing and communication
(Institute of Electrical and Electronics Engineers Inc., 2022)Joint sensing and communication (JSAC) systems are becoming attractive technologies since they can map the radio environment while performing communication using the same frequency bands. This is achieved by radar signal ... -
Performance analysis of frequency domain im schemes under CFO and IQ imbalance
(Institute of Electrical and Electronics Engineers Inc., 2019)Next generation of mobile networks is the key area of research with increasing demand for new applications and use cases. In order to satisfy the applications with high data rate, high reliability, and low latency, ... -
Performance analysis of user scheduling in massive MIMO with fast moving users
(Institute of Electrical and Electronics Engineers Inc., 2019)This paper analyzes the effect of fast fading Doppler channel on user scheduling algorithms. Considering a millimeter wave (mmWave) downlink massive multiple-input multiple-output (M-MIMO) system, we adopt a two-stage ... -
Performance of TDOA and AOA localization techniques for different base-stations topologies
(Institute of Electrical and Electronics Engineers Inc., 2019)Time difference of arrival (TDOA) and angle ofarrival (AOA) localization techniques provide satisfactory positioning performance utilizing multiple base-stations (BSs). However, their performance depends on the BSs topology, ... -
Phase index-based receive spatial modulation PHY security against supervised pattern recognition
(IEEE - Institute of Electrical and Electronics Engineers, Inc, 2021)Receive Spatial Modulation (RSM) uses the index of the receive antenna to convey additional information bits, which reduces the receiver complexity and improves spectral efficiency. Additionally, it provides inherent ... -
Physical effect of in-phase and quadrature imbalance in delay-doppler domain
(Institute of Electrical and Electronics Engineers Inc., 2021)Orthogonal time frequency space (OTFS) technique is a recent two-dimensional (2-D) modulation aiming to exploit both time and frequency selectivity of doubly dispersive wireless channel, which significantly affects the ... -
Physical layer security for visible light communication in the presence of ISI and NLoS
(Institute of Electrical and Electronics Engineers Inc., 2022)Visible light communication (VLC) is an important alternative and/or complementary technology for next generation indoor wireless broadband communication systems. In order to ensure data security for VLC in public areas, ... -
Physical layer security for wireless implantable medical devices
(Institute of Electrical and Electronics Engineers, 2015)Wireless communications are increasingly important in health-care applications, particularly in those that use implantable medical devices (IMDs). Such systems have many advantages in providing remote healthcare in terms ... -
A practical physical-layer security method for precoded OSTBC-based systems
(Institute of Electrical and Electronics Engineers, 2016)In this work, we investigate the security performance obtained by employing a practical precoded orthogonal space time block coding method (POSTBC) in MISO wireless networks. In particular, space time codewords are precoded ... -
Predicting path loss distributions of a wireless communication system for multiple base station altitudes from satellite images
(IEEE Computer Society, 2022)It is expected that unmanned aerial vehicles (UAVs) will play a vital role in future communication systems. Optimum positioning of UAVs, serving as base stations, can be done through extensive field measurements or ray ...
