Articles tagged with Channel Capacity
Researchers have implemented Orbital Angular Momentum (OAM) as an independent information carrier for optical holography, leading to OAM multiplexed holography. The new design approach, MHC-OAM, uses spatial light modulators to achieve multiramp helical conical beams with different parameters serving as information encryption or decryp...
Researchers from HKUST and CityU developed a metasurface to generate time-varying OAM beams with a time-dependent phase profile. This allows for a higher-order twist in the envelope wavefront structure, increasing capacity for applications such as dynamic particle trapping and information encryption.
Researchers at Arizona State University have designed and constructed artificial membrane channels using DNA, allowing selective transport of ions, proteins, and cargo. The channels can be opened and closed with a lock and key mechanism, enabling diverse scientific domains such as biosensing and drug delivery applications.
A machine-learning algorithm helps select the best channel for communication in a wireless network of resource-constrained devices. The algorithm outperforms traditional methods by reducing congestion and increasing successful transmissions.
Researchers have successfully developed a ferroelectric FET with ferroelectric-HfO2 and ultrathin IGZO channel, demonstrating nearly ideal subthreshold swing and mobility higher than poly-silicon. The device achieves low-power, high-speed, and high-capacity memory capabilities.
Researchers discovered that presynaptic active zones can accommodate additional calcium channels, increasing synaptic strength and overturning previous thinking on channel dominance. This finding opens up a new avenue of research for treating neurological disorders.
Researchers demonstrate a new algorithm to simulate quantum channels using IBM's cloud quantum computer, enabling efficient open system quantum simulation and exploring its applications in quantum communication. The method reduces gate complexity compared to Stinespring dilation, making it scalable for higher dimensions.
Researchers have discovered that cells' G protein-coupled receptor signaling systems can pass more than 2 bits of information per interaction with external stimuli, exceeding previous estimates. This finding has crucial implications for biology and drug discovery, particularly in the development of novel anti-cancer agents.
Engineers at Nokia successfully transmitted 78 interleaved 400 Gb/s channels with a 31.2 Tb/s fiber capacity in real-time bidirectional transmission, surpassing previous demonstrations. The setup utilized commercially available transponders and standard fibers to achieve high spectral efficiency.
A new model from the University of Toronto's Rotman School of Management provides an integrated marketing-operations framework to help companies design effective service policies for their call centres. The framework links call centre capacity, service quality, and future consumer behaviour, enabling companies to tailor service levels ...
A new study provides an integrated marketing-operations framework to help companies design more effective service policies for their call centers. The framework considers the flow of customers through the call center and their subsequent behavior, allowing companies to design different service levels for various customer types.
Researchers at NIST are developing measurement tools for channels that could offer more than 1,000 times the bandwidth of today's cell phone systems. The tools will enable the development of innovative millimeter-wave wireless technologies and support the expected increases in demand for wireless capacity.
Researchers at UCSB show that changes in river channel boundaries directly impact flood hazard trends across the US. Channel capacity needs to be considered jointly with stream flow for accurate flood hazard calculation.
Two Bristol engineers, Prof Andrew Nix and Prof Mark Beach, will represent the University of Bristol at the Brooklyn 5G Summit in New York. They will explore challenges introduced by 5G+ network designs and discuss developing efficient 5G networks by 2020.
Researchers at TUM have devised a scheme that wrings provably strong security out of the physical layer, preventing eavesdroppers from receiving transmitted information. The approach uses two useless frequency bands to 'super-activate' the system and achieve positive capacity for secure communication.
MIT researchers have developed a new method for manufacturing filters in frequency-hopping radios that enables 14 times more filters on a single chip. This improvement increases the performance of these devices while minimizing space constraints, making them ideal for handheld devices. The new approach uses techniques already common in...
Researchers have identified a molecular mechanism that controls energy expenditure in muscles and helps determine body weight. This discovery could lead to a new medical approach in treating obesity by targeting the ATP-sensitive potassium channel function in muscle tissue.
The Dead Sea's water levels are decreasing at an accelerated rate, primarily caused by increased human water consumption from the Jordan and Yarmouk Rivers. The study suggests that desalination of seawater or construction of new channels could help slow down the receding water levels.
Researchers at Lawrence Berkeley National Laboratory and University of Oxford have achieved a record-breaking acceleration of electron beams to 1 billion electron volts in 3.3 centimeters using laser wakefield acceleration. This breakthrough opens the door to compact high-energy experiments and superbright free-electron lasers.
The US Army has awarded UCSD a five-year grant to develop innovative wireless networking technology for tactical environments. The project aims to create cross-layer algorithms and new antenna technologies to enhance network adaptability and resilience in the face of enemy jamming and eavesdropping attempts.