Results 41 to 50 of about 1,051,474 (226)

Information Rates on a Symbol-Asynchronous Multi-Access Channel

IEEE Open Journal of the Communications Society, 2020
Capacity of uncoordinated multiple access channel (MAC) with single-user demodulation has been studied in literature under various assumptions for symbol-synchronous transmission.
Salman A. Khan, Jan Bajcsy
doaj   +1 more source

Particle Filtering for Multiple Access DS/CDMA Systems DS/CDMA Channel Estimation

Semina: Ciências Exatas e Tecnológicas, 2013
This article discusses computational implementation aspects and performance of a Bayesian methodology, namely particle filter (PF). The PF channel estimation technique is directly applied to the channel coefficients estimation of DS/CDMA systems ...
Rafael Oliveira Ribeiro, Taufik Abrao
doaj   +1 more source

Supporting Survivor‐Centered Care Through Digital Health Integration

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Survivors of childhood cancer face barriers to receiving guideline‐based, long‐term follow‐up care. Two digital tools, Passport for Care (PFC) and Cancer SurvivorLink (SurvivorLink), address complementary gaps by enabling tailored survivorship care plan (SCP) generation, updating, storage, and sharing.
Jordan G. Marchak, Rebecca Williamson‐Lewis, Michael O'Connor, Michael Palgon, Yu‐Ra Kim, Michael Schuckenbrock, Paula Edwards, Abraham Mendoza, Anthony Adams, Brian Arriaga‐Solis, Justin Parker, Harry Tinoco‐Giraldo, Jason King, C. Michael Fordis, Karen E. Effinger, Maria Monica Gramatges   +15 more
wiley   +1 more source

Chip-Level Channel Equalization in WCDMA Downlink

EURASIP Journal on Advances in Signal Processing, 2002
The most important third generation (3G) cellular communications standard is based on wideband CDMA (WCDMA). Receivers based on TDMA style channel equalization at the chip level have been proposed for a WCDMA downlink employing long spreading sequences ...
Heikkilä Markku J, Komulainen Petri, Lilleberg Jorma, Hooli Kari, Juntti Markku, Latva-aho Matti   +5 more
doaj   +1 more source

LDPC Codes over Gaussian Multiple Access Wiretap Channel

, 2018
We study the problem of two-user Gaussian multiple access channel (GMAC) in the presence of an external eavesdropper. In this problem, an eavesdropper receives a signal with a lower signal-to-noise ratio (SNR) compared to the legitimate receiver and all ...
Akhbari, Bahareh, Asvadi, Reza, Shahbaz, Sahar   +2 more
core   +1 more source

Infection Control Practices for Vascular Access Management in Hemodialysis: Results From a Nationwide Survey of Japanese National University Hospitals

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Bloodstream infections due to repeated vascular access (VA) puncture and circuit connections remain major concerns in hemodialysis. Therefore, we examined current practices for glove, disinfectant, and personal protective equipment (PPE) use according to VA type in national university hospitals in Japan.
Aiko Yamada, Makoto Harada, Tadahiko Kikugawa, Takeshi Nakata, Koji Hashimoto, Tsuneo Konta, Yuji Kamijo   +6 more
wiley   +1 more source

N-DCF: MAC overhead reduction using narrow channel contention in wireless networks

EURASIP Journal on Wireless Communications and Networking, 2018
This paper presents a medium access control protocol for wireless networks that improves system spectral efficiency using multiple channels. Use of multiple narrow channels has already been proposed as a solution to reduce MAC overhead, but merely ...
Jungmin So, Ayinebyona Eliab
doaj   +1 more source

Classical Capacity of A Quantum Multiple Access Channel

, 2000
We consider the transmission of classical information over a quantum channel by two senders. The channel capacity region is shown to be a convex hull bound by the Von Neumann entropy and the conditional Von Neumann entropy.
Hou, Guang, Huang, Minxin, Zhang, Yongde
core   +1 more source

Performance Evaluation of Variable Bandwidth Channel Allocation Scheme in Multiple Subcarrier Multiple Access [PDF]

, 2018
Multiple Subcarrier Multiple Access (MSMA) enables concurrent sensor data streamings from multiple wireless and batteryless sensors using the principle of subcarrier backscatter used extensively in passive RFID.
Haruhisa ICHIKAWA, Hiromu KAMEI, Jin MITSUGI, Nitish RAJORIA, Yuusuke KAWAKITA   +4 more
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source