Results 41 to 50 of about 1,449,650 (280)
Layered-MAC: An Energy-Protected and Efficient Protocol for Wireless Sensor Networks [PDF]
, 2021 In wireless sensor networks, the radio of the wireless sensor node happens to be the highest source of energy consumption. Hence, there is a need to focus on the MAC layer, as it controls access to the radio.
Getov, Vladimir +3 more
core +1 more source
Adaptive Beaconing Based MAC Protocol for Sensor Based Wearable System
IEEE Access, 2018 A sensor-based wearable system is a promising platform to monitor the health and movement of human in real time to improve the quality of life. However, it places stringent requirements on communication delay, energy efficiency, and throughput.
Xinmeng Xu +5 more
doaj +1 more source
A MAC Protocol for Underwater Sensors Networks [PDF]
, 2015 Peer ...
Rodrigo M. Santos +4 more
openaire +3 more sources
A synchronous duty-cycled reservation based MAC protocol for underwater wireless sensor networks
Digital Communications and Networks, 2021 To design an energy-efficient Medium Access Control (MAC) protocol for the Underwater Wireless Sensor Networks (UWSNs) is an urgent research issue since depleted batteries cannot be recharged or replaced in the underwater environment.
Alak Roy, Nityananda Sarma
doaj +1 more source
Cognitive radio MAC protocol for WLAN [PDF]
2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, 2008 To solve the performance degradation issue in current WLAN caused by the crowded unlicensed spectrum, we propose a cognitive radio (CR) media access protocol, C-CSMA/CA. The basic idea is that with cognitive radio techniques the WLAN devices can not only access the legacy WLAN unlicensed spectrum but opportunistically access any other under-utilized ...
Qi Zhang 0013 +2 more
openaire +2 more sources
Design and Performance Analysis of a Novel MAC Protocol for Full Duplex Wireless Network
Dianxin kexue, 2015 Two independent frequency bands are used for half duplex radios to realize simultaneous transmission and reception.Recently，full duplex radios are allowed to transmit and receive data packets simultaneously in one frequency band.To improve the ...
Hongzhi Mo
doaj +2 more sources
Power Saving MAC Protocols for WSNs and Optimization of S-MAC Protocol [PDF]
International journal of radio frequency identification & wireless sensor networks, 2011 Low power MAC protocols have received a lot of consideration in the last few years because of their influence on the lifetime of wireless sensor networks. Since, sensors typically operate on batteries, replacement of which is often difficult. A lot of work has been done to minimize the energy expenditure and prolong the sensor lifetime through energy ...
Simarpreet Kaur, Leena Mahajan
openaire +4 more sources
Engineering IL‐4 resistant proinflammatory human myeloid cells for cancer immunotherapy
Molecular Oncology, EarlyView.We developed a scalable workflow to generate proinflammatory human myeloid cells. CRISPR/Cas9‐edited CD34+ hematopoietic stem and progenitor cells were expanded and differentiated with M‐CSF. Deletion of STAT6 or STAT6/NFKB1 enhanced macrophage proinflammatory gene expression and cytokine secretion in the presence of IL‐4 while maintaining antibody ...
Theresa Barberi, Alan D. Friedman
wiley +1 more source
An Efficient Medium Access Control Protocol with Parallel Transmission for Wireless Sensor Networks
Journal of Sensor and Actuator Networks, 2012 In this paper, we present a novel low power medium access control protocol for wireless sensor networks (WSNs). The proposed protocol, EP-MAC (Efficient MAC with Parallel Transmission) achieves high energy efficiency and high packet delivery ratio under ...
Mitsuji Matsumoto, Mohammad Arifuzzaman
doaj +1 more source
In vitro generation of regulatory T cells: A challenging tool for studying immune aging in humans
FEBS Open Bio, EarlyView.In vitro induction of human regulatory T cells using standard protocols generates suppressive, Foxp3‐expressing CD4+ T cells independently of TGF‐β supplementation and donor age. Regulatory T (Treg) cells play a key role in immune tolerance and homeostasis.
Lynn Muller +3 more
wiley +1 more source