Results 51 to 60 of about 2,392,726 (299)

Labeling Diversity for 2x2 WLAN Coded-Cooperative Networks [PDF]

Radioengineering, 2015
Labelling diversity is an efficient technique recently proposed in the literature and aims to improve the bit error rate(BER) performance of wireless local area network (WLAN) systems with two transmit and two receive antennas without increasing the ...
S. Ejaz, FengFan Yang, HongJun Xu
doaj  

Cooperative diversity schemes for wireless communication systems [PDF]

, 2008
Mestrado em Engenharia Electrónica e TelecomunicaçõesA presente dissertação insere-se na área das comunicações sem fios, ou mais especificamente na temática da diversidade cooperativa.
Moço, Andreia Vieira
core  

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

FEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

Transmit Diversity Assisted Space Shift Keying for Colocated and Distributed/Cooperative MIMO Elements [PDF]

, 2011
Space Shift Keying (SSK) modulation is a recently proposed MIMO technique, which activates only a single transmit antenna during each time slot and uses the specific index of the activated transmit antenna to implicitly convey information.
Yang, Lie-Liang, Lie-Liang Yang, Chao Xu, Du Yang, Yang, Du, Xu, Chao, Hanzo, Lajos, Lajos Hanzo   +7 more
core   +2 more sources

Channel estimation method for multi-node amplify-and-forward co-operative communication over frequency-selective fading channels

Tongxin xuebao, 2008
A training sequence aided least squares channel estimation method was proposed for orthogonal frequency di-vision multiplexing （OFDM） based multi-node amplify-and-forward （AF） cooperative communication over fre-quency-selective fading channels.
YAN Kai, DING Sheng, ZHU Ming-hua, LIU Hai-tao   +3 more
doaj  

Virginia Cooperative Extension Volunteers: Extending Knowledge and Improving Lives Updates

, 2021
This is an informational brochure describing Virginia Cooperative Extension volunteer programs, and screening requirements for potential VCE volunteers ...
Proudfoot, Chad
core  

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Metastasis on pause: How dormant tumor cells stay hidden within the tumor microenvironment and evade immune surveillance

Molecular Oncology, EarlyView.
Dormant cancer cells can hide in distant organs for years, evading treatment and the immune system. This review highlights how signals from the surrounding tissue and immune environment keep these cells inactive or trigger their reawakening. Understanding these mechanisms may help develop therapies to eliminate or control dormant cells and prevent ...
Kanishka Tiwary, Jose Javier Bravo‐Cordero   +1 more
wiley   +1 more source

Distributed differential space-time spreading for the asynchronous relay aided interference-free cooperative CDMA uplink

, 2010
In this paper, we propose a differential Space-Time Coding (STC) scheme designed for asynchronous cooperative networks, where neither channel estimation nor symbol-level synchronization is required at the cooperating nodes.
Sugiura, Shinya, Chen, Sheng, Hanzo, Lajos   +2 more
core   +2 more sources

Evolution of cooperation with the diversity of cooperation tendencies

Chaos, Solitons & Fractals
The complete cooperation and the complete defection are two typical strategies considered in evolutionary games in many previous works. However, in real life, strategies of individuals are full of variety rather than only two complete ones. In this work, the diversity of strategies is introduced into the weak prisoners' dilemma game, which is measured ...
Huang, Linya, Han, Wenchen
openaire   +2 more sources