IEEE 802.15. 4g/4x-based orthogonal frequency-division multiplexing transmission scheme for wide-area and mobile IoT communication systems
S Kadoi, H Ochiai, R Okumura… - IEEE Internet of …, 2021 - ieeexplore.ieee.org
Radio communication systems using the frequency-shift keying (FSK) scheme standardized
by the IEEE 802.15. 4g standard can realize low-power consumption and highly reliable …
by the IEEE 802.15. 4g standard can realize low-power consumption and highly reliable …
An enhanced channel estimation for IEEE 802.15. 4 OFDM receiver in high-speed mobile IoT communication systems
H Ochiai, Y Morikawa, K Mizutani… - IEEE Internet of Things …, 2023 - ieeexplore.ieee.org
Currently, orthogonal frequency division multiplexing (OFDM), standardized in IEEE 802.15.
4, has attracted attention as a transmission scheme for higher data rates, long-distance …
4, has attracted attention as a transmission scheme for higher data rates, long-distance …
Software-defined radio-based evaluation platform for highly mobile IEEE 802.22 system
Wide-area communication systems using TV white space (TVWS) are promising
technologies capable of full-coverage and cost-effective vehicular and transportation …
technologies capable of full-coverage and cost-effective vehicular and transportation …
Toward the coexistence of cognitive networks for vehicular communications on TVWS for IEEE std. 802.22
The IEEE 802.22 is a standard for wireless regional area networks to opportunistically
operate in TV bands; however, sharing TV White Space (TVWS) spectrum creates a problem …
operate in TV bands; however, sharing TV White Space (TVWS) spectrum creates a problem …
Channel Measurement and Modeling Prototype for IEEE 802.22-Based Regional Area Networks
During the design and development of a reliable transceiver, its performance and
robustness are evaluated using channel models that simulate the propagation channel …
robustness are evaluated using channel models that simulate the propagation channel …
Radio-protected area estimation model using location-dependent gain for a spectrum sharing system in the VHF-Band
K Minaki, S Yanase, S Tomida… - IEEE Open Journal …, 2022 - ieeexplore.ieee.org
This paper proposes a radio-protected area (RPA) estimation model that achieves full
protection and avoids overprotection by adding an appropriate margin to the extended-Hata …
protection and avoids overprotection by adding an appropriate margin to the extended-Hata …
[PDF][PDF] Generalized Regression Neural Network Based Channel Identification and Compensation Using Scattered Pilot.
In the high-speed mobile environment, channel state information (CSI) estimated at the
beginning of the packet is quite different at the last part because the actual channel state …
beginning of the packet is quite different at the last part because the actual channel state …
A direct localization method in the presence of cochannel interference and multipath fading
N **a, B Li, J Wang - IEEE Systems Journal, 2020 - ieeexplore.ieee.org
Cochannel signals separation is an important topic in the field of radio monitoring. A direct
geolocation method based on random spatial spectrum is proposed in this paper for multiple …
geolocation method based on random spatial spectrum is proposed in this paper for multiple …
Realistic channel estimation of IEEE 802.11 af systems in TV white space
This work investigates the realistic performance of IEEE 802.11 af systems released for the
efficient spectrum utilization of TV white space (TVWS). These systems are operated over …
efficient spectrum utilization of TV white space (TVWS). These systems are operated over …
An adaptive pilot density based data rate enhancement of mobile WiMAX
Today's era demands a high data rate internet facility. Mobile WiMAX system, provides a
high speed internet service. It incorporates the pilot signal at transmitter sides to get link …
high speed internet service. It incorporates the pilot signal at transmitter sides to get link …