Results 71 to 80 of about 9,081 (117)

A new stochastic spatio-temporal propagation model (SSTPM) for mobile communications with antenna arrays [PDF]

, 2001
In order to evaluate the performance of third-generation mobile communication systems, radio channel models are required. The models should be capable of handling nonstationary scenarios with dynamic evolution of multipath. In this context and due to the
Piechocki, RJ, Tsoulos, G, McGeehan, JP
core   +1 more source

Localization of Wearable Ultra Wideband Antennas for Motion Capture Applications [PDF]

, 2014
This paper presents a study of human body localisation using Ultra Wideband (UWB) technology. Various base station configurations, time of arrival and first peak detection algorithms are used to estimate the position of body-worn antennas.
Batchelor, John C., Parini, Clive G., Bharadwaj, Richa, Swaisaenyakorn, Srijittra, Alomainy, Akram   +4 more
core   +1 more source

Compact printed multiband antenna with independent setting suitable for fixed and reconfigurable wireless communication systems [PDF]

, 2012
This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ 2012 IEEE. Personal use of this material is permitted.
AbuTarboush, HF, Nilavalan, Rajagopal, Abutarboush, Hattan, Nasr, Karim M., Karim M. Nasr, S. W. Cheung, Cheung, Sing Wai, Cheung, SW, R. Nilavalan, Cheung, S. W., Hattan F. Abutarboush, Nilavalan, R., Abutarboush, Hattan F., Nilavalan, R, Nasr, Karim Medhat A, Nasr, KM   +15 more
core   +1 more source

Review of Positioning Technologies and Antenna Designs for Indoor, Outdoor, and Wearable Applications

IEEE Access
This paper presents a systematic review of positioning technologies and antenna designs for indoor and outdoor applications. The indoor positioning analysis focuses on RF-based systems including Bluetooth Low Energy (BLE), ultra-wideband (UWB), Wi-Fi ...
Rais Ahmad Sheikh, Azremi Abdullah Al-Hadi, Thennarasan Sabapathy, Toufiq Md Hossain, Hidayath Mirza, Prayoot Akkaraekthalin, Ping Jack Soh   +6 more
doaj   +1 more source

A slot antenna array with low mutual coupling for use on small mobile terminals [PDF]

, 2011
In order to take full advantage of the benefits to be obtained by using MIMO techniques for mobile communications, it is necessary to use an antenna array which is both compact and also has low mutual coupling between ports.
Paul, DL, Dominique L. Paul, Sema Dumanli, Dumanli, S, Railton, CJ, Chris J. Railton   +5 more
core   +1 more source

On the Upper Mid-Band 8 × 8 and 8 × 4 Device MIMO Performance Based on Applying Compact Backcover Four-Antenna Modules for 6G Smartphones With Increased Data Rates

IEEE Access
For future six-generation (6G) upper mid-band mobile communications, the higher-order device multi-input-multi-output (MIMO) such as the $8\times 8$ or $8\times 4$ MIMO is envisioned for the smartphone to achieve increased data rates for the user ...
Kin-Lu Wong, Wan-Ting Li, Chin-Lung Wang, Chun-Chi Wen, Wei-Yu Li   +4 more
doaj   +1 more source

Dynamic Channel Allocation Techniques Using Adaptive Modulation and Adaptive Antennas

, 2001
This contribution studies the impact of adaptive quadrature amplitude modulation (AQAM) on network performance when applied to a cellular network, using adaptive antennas in conjunction with both fixed channel allocation (FCA) and locally distributed ...
Blogh, J.S., Cherriman, P.J., Hanzo, L.
core  

Application of New Hybrid Jaya Grey Wolf Optimizer to Antenna Design for 5G Communications Systems

IEEE Access, 2019
The new expected fifth generation (5G) communication systems will serve users with data rates of several Gbps and will allow running new applications in mobile devices. In order to do so, several design challenges have to be met.
Sotirios K. Goudos, Traianos V. Yioultsis, Achilles D. Boursianis, Kostas E. Psannis, Katherine Siakavara   +4 more
doaj   +1 more source

Unified RF Module With Multiband Antenna and Electromagnetic Interference Suppression for Wi-Fi 7 Laptop Applications

IEEE Journal of Microwaves
Electromagnetic interference (EMI) from high-speed digital subsystems in laptops can couple into wireless front ends, particularly at 2.4 GHz, degrading link reliability and throughput.
Yu-Kai Huang, Chung-En Wu, Kuan-Hsueh Tseng, Yen-Sheng Chen   +3 more
doaj   +1 more source

A Circularly Polarised Zero Beam‐Squinting Leaky‐Wave Antenna With Increased Gain Using NRI‐TL Metamaterials

IET Microwaves, Antennas & Propagation
The theory, design and experimental validation of a circularly polarised (CP) metamaterial fixed‐beam leaky‐wave antenna (LWA) with zero beam‐squinting (ZBS) is presented in this paper.
Kyriakos Neophytou, Kypros M. Kossifos, Marco A. Antoniades   +2 more
doaj   +1 more source