Results 81 to 90 of about 1,337,989 (232)

Approach towards the achievable sum rates capacity of Gaussian MIMO broadcast channels

Tongxin xuebao, 2006
Since it is very difficult to compute the sum rates capacity of Gaussian MIMO broadcast channels directly by using dirty paper coding approach,an iterative water-filling algorithm is proposed to obtain the sum capacity bound for multi-access channel and ...
PAN Cheng-kang1, CAI Yue-ming1, XU You-yun1, ZHANG Hua-ping2   +3 more
doaj   +2 more sources

Trustworthy Remote Identification and Capacity Analysis for High‑Density Low‑Altitude UAV Safety

Shuju Caiji Yu Chuli
With the rapid development of the low‑altitude economy in China， the low‑altitude airspace is characterized by massive device connectivity and intensive spectrum utilization， posing significant challenges to the real‑time safety supervision of unmanned ...
SUN Hancun, BAI Zixuan, XU Jin, GE Ning
doaj   +1 more source

Stable Transmission in the Time-Varying MIMO Broadcast Channel

EURASIP Journal on Advances in Signal Processing, 2008
Both linear and nonlinear transmit precoding strategies based on accurate channel state information (CSI) can significantly increase available throughput in a multiuser wireless system.
Michael A. Jensen, James R. Zeidler, Adam L. Anderson   +2 more
doaj   +1 more source

Spatial Air Index Based on Largest Empty Rectangles for Non-Flat Wireless Broadcast in Pervasive Computing

ISPRS International Journal of Geo-Information, 2016
In pervasive computing, location-based services (LBSs) are valuable for mobile clients based on their current locations. LBSs use spatial window queries to enable useful applications for mobile clients.
Jun-Hong Shen, Ching-Ta Lu, Mu-Yen Chen, Chien-Tang Mai   +3 more
doaj   +1 more source

Effectiveness Assessment of Underwater Area Cruise Based on the ADC Method

Journal of Field Robotics, EarlyView.
ABSTRACT Underwater area surveillance plays a crucial role in upholding national security, safeguarding strategic interests, and mitigating potential threats. Despite its significance, a notable gap persists in the availability of comprehensive models for assessing its effectiveness.
Qingwei Liang, Yuxin Lin, Mingyang Luo, Zhanghong Zeng   +3 more
wiley   +1 more source

Strategies for forming a regional channel broadcast programming

Неофилология
INTRODUCTION. The transition to digital broadcasting has affected the functioning of regional channels. To participate in the competition for cable network broadcasting, local TV had to revise their programming policies.
A. A. Maksim
doaj   +1 more source

Formation Control With Obstacle Avoidance of Underwater Swarms Based on Relative Visual Feedback

Journal of Field Robotics, EarlyView.
ABSTRACT Underwater multi‐robot and swarm systems require advanced methodologies for controlling collective behavior. Conventional single‐robot techniques, such as tethering, sonar imaging, and acoustic localization, are not scalable or effective for swarm applications.
Andrea Infanti, Saverio Iacoponi, Saif Alameri, Mohamed El Hanbaly, Mohammed Tarnini, Cesare Stefanini, Giulia De Masi, Federico Renda   +7 more
wiley   +1 more source

Robotics for Crop Pollination: Recent Advances and Future Direction

Journal of Field Robotics, EarlyView.
ABSTRACT There is great interest in alternative pollination strategies for crop production in the face of climate change and perennial threats to the traditional pollination mechanisms. This review explores the potential of robotic pollination as a promising solution to these challenges affecting crop fertilization, agricultural sustainability, and ...
Ranjan Sapkota, Matthew D. Whiting, Dawood Ahmed, Manoj Karkee   +3 more
wiley   +1 more source

Performance evaluation of flooding in MANETs in the presence of multi-broadcast traffic [PDF]

, 2005
Broadcasting has many important uses and several mobile ad hoc networks (MANETs) protocols assume the availability of an underlying broadcast service. Applications, which make use of broadcasting, include LAN emulation, paging a particular node. However,
Ould-Khaoua, M., Papanastasiou, S., Yassein, M.B., O. Khaoua, S. Papanastasiou, M.B. Yassein   +5 more
core   +1 more source

UAV‐Based Precision Seed Dropping for Automated Reforestation

Journal of Field Robotics, EarlyView.
ABSTRACT Wildfires and deforestation pose significant threats to forest ecosystems, motivating scalable methods for reforestation beyond labor‐intensive cultivation of native forest seedlings in nurseries. To enable large‐scale direct seeding of native species, this paper presents the design, analysis, and field evaluation of a UAV‐based seed‐dropping ...
Qi Rui Lee, Henrik Hesse, Khuanphirom Naruangsri, Worayut Takaew, Stephen Elliott, Dinesh Bhatia   +5 more
wiley   +1 more source