Results 1 to 10 of about 15,118 (165)

Utility of First Dorsal Metacarpal Artery Flap for Thumb Defects

open access: yesIndian Journal of Plastic Surgery, 2022
Background Reconstruction of thumb tip, while providing a durable and sensate flap, is a challenging task. It is important as thumb accounts for 50% of hand functions.
Krittika Aggarwal, Kuldeep Singh
doaj   +2 more sources

Decision feedback equalization in SC-FDMA [PDF]

open access: yes2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, 2008
SC-FDMA (Single-Carrier Frequency Division Multiple Access) is employed in the 3GPP LTE (Long-Term Evolution) standard as the uplink transmission scheme. The SC-FDMA signal has a low PAPR.
Armour, SMD, Huang, G, Nix, AR
core   +6 more sources

Performance Analysis of OFDMA and SC-FDMA

open access: yesVìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2017
The main challenge in any high-speed digital communication system is how to maximize the data rate with minimizing the bit error rate. Several techniques have been developed to achieve this point.
Muhanned AL-Rawi
doaj   +5 more sources

First dorsal metacarpal artery (FDMA) flaps: A novel classification system incorporating various modifications and subtypes—a 5 year retrospective comparative study [PDF]

open access: yesJPRAS Open
Summary: Introduction: The first dorsal metacarpal artery (FDMA) flap, including its extended versions, is a reliable and versatile option for reconstructing thumb defects.
Mir Yasir   +10 more
doaj   +2 more sources

Progressive Pattern Interleaver with Multi-Carrier Modulation Schemes and Iterative Multi-User Detection in IoT 6G Environments with Multipath Channels [PDF]

open access: yesSensors
Sixth-generation (6G) wireless networks demand a more efficient implementation of non-orthogonal multiple access (NOMA) schemes for severe multipath fading environments to serve multiple users.
Shivani Dixit   +4 more
doaj   +2 more sources

The Oblique Extended Reverse First Dorsal Metacarpal Artery Perforator Flap for Coverage of the Radial-Volar Defect of the Proximal Interphalangeal Joint in the Index Finger: A Case Report [PDF]

open access: yesArchives of Plastic Surgery, 2022
The dorsal metacarpal artery perforator flap is a flap that rises from the hand dorsum. Owing to its reliability and versatility, this flap is used as a workhorse for finger defect.
Jeeyoon Kim   +3 more
doaj   +2 more sources

Remodeling Highly Fluorinated Electrolyte via Shielding Agent Regulation toward Practical Lithium Metal Batteries [PDF]

open access: yesAdvanced Science
Highly fluorinated electrolytes have proved effective in improving electrochemical stability of lithium metal batteries. However, excessive fluorination not only detrimentally impacts the electrolyte ionic conductivity, but also inevitably forms the over‐
Yutong Yang   +10 more
doaj   +2 more sources

LDPC coded hybrid discrete cosine transform and Fejér–Korovkin wavelet transform-based SC-FDMA for image communication

open access: yesArray, 2021
A low-density parity-check (LDPC) coded single-carrier frequency-division multiple access (SC-FDMA) system is proposed for effective image transmission.
Rafiul Kadir   +4 more
doaj   +1 more source

Carrier frequency offsets problem in recent DST‐SC‐FDMA system: Investigation and compensation

open access: yesThe Journal of Engineering, 2021
Carrier frequency offset (CFO) is a challenging problem in the uplink of the single‐carrier frequency division multiple access (SC‐FDMA) system. CFOs effect on the orthogonality between subcarriers and cause inter‐carrier interference (ICI) and multiple ...
Faisal S. Al‐kamali   +1 more
doaj   +1 more source

High Resolution FDMA MIMO Radar [PDF]

open access: yesIEEE Transactions on Aerospace and Electronic Systems, 2020
Traditional multiple input multiple output radars, which transmit orthogonal coded waveforms, suffer from range-azimuth resolution trade-off. In this work, we adopt a frequency division multiple access (FDMA) approach that breaks this conflict. We combine narrow individual bandwidth for high azimuth resolution and large overall total bandwidth for high
David Cohen   +2 more
openaire   +2 more sources

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