Electromagnetic earth environment: new radio diagnostic

2009 ◽  
Author(s):  
H. Rothkaehl ◽  
B. Thide ◽  
J.E. Bergman
Keyword(s):  
New Radio ◽  
Earth Environment

PENDIDIKAN UNTUK PEMBANGUNAN BERKELANJUTAN

2018 ◽  
Vol 10 (3) ◽  
pp. 304
Author(s):  
Familia Novita Simanjuntak
Keyword(s):  
Sustainable Development ◽  
Global Economy ◽  
Autonomous Motivation ◽  
Human Society ◽  
Environmental Attitude ◽  
Development Education ◽  
Environmental Behaviors ◽  
Sustainable Environment ◽  
Complex Dimensions ◽  
Earth Environment

ABSTRACTSustainable development urges to merge the three complex dimensions: global economy, global society and physically earth environment. Sachs (2015) states that sustainable development is the expert effort to comprehend the world and the method to solve the crowded earth issues by the global population growth that nine times increase than the first industry era. Education is one of fatal element for sustainable development phase especially for the human (society) development. Human development becomes the main core of invesment for economy development because it is prepared for the youngst as the next generation to develop economic improvement individually for their family and also for their community (include for the State’s development interest). Marshall, Hine and East (2017) studied about the education which develop the autonomous motivation to support individu execute the pro-environmental behaviors (PEBs). This autonomous motivation will establish the environmental attitude and personality in decision making and action of sustainable environment protection and preservation.Keywords: sustainable development, education, pro-environmental behaviors ABSTRAKPembangunan berkelanjutan berupaya untuk mengkaitkan tiga sistem yang rumit yaitu sistem ekonomi dunia, sistem sosial dunia dan lingkungan fisik bumi. Sachs (2015) menyatakan bahwa pembangunan berkelanjutan menjadi cara para pakar untuk memahami dunia dan sebuah metode untuk menyelesaikan permasalahan dunia yang berawal dari sesaknya bumi akibat pertumbuhan penduduk dunia yang sudah mencapai sembilan kali lebih banyak dari populasi manusia yang hidup pada jaman dimulainya revolusi industri. Pendidikan adalah salah satu komponen yang penting dalam proses pembangunan berkelanjutan terutama pembangunan yang terkait manusia (sosial). Pembangunan manusia menjadi bagian vital dari investasi yang dibutuhkan dalam pembangunan ekonomi karena merupakan jalur investasi yang disiapkan untuk anak-anak sebagai generasi penerus yang akan melanjutkan perbaikan ekonomi baik secara individu bagi keluarganya maupun secara berkelompok bagi komunitasnya (termasuk kepentingan pembangunan di Negaranya). Penelitian Marshall, Hine and East (2017) menyatakan bahwa pendidikan dapat membentuk dorongan dari dalam setiap individu untuk melakukan perilaku pro lingkungan hidup (pro-environmental behaviours). Dorongan dari dalam individu ini secara otonomi membentuk watak dan karakter yang ramah lingkungan untuk membuat keputusan dan bertindak yang melindungi dan menjaga keberlanjutan lingkungan hidup.Kata kunci: pembangunan berkelanjutan, pendidikan, pro-environmental beharviors

EARTH, ENVIRONMENT AND HUMAN INTERACTIONS IN TENNESSEE: INSIGHTS FROM A MULTI-INSTITUTIONAL FIELD COURSE EXPERIENCE

2020 ◽  
Author(s):  
Neil P. Kelley ◽  
◽  
Rodney Blackwell ◽  
Aniya Bryant ◽  
Amaris Daniels ◽  
...  
Keyword(s):  
Human Interactions ◽  
Earth Environment ◽  
Course Experience ◽  
Institutional Field

5G New Radio: Waveform, Frame Structure, Multiple Access, and Initial Access

2017 ◽  
Vol 55 (6) ◽  
pp. 64-71 ◽  
Author(s):  
Shao-Yu Lien ◽  
Shin-Lin Shieh ◽  
Yenming Huang ◽  
Borching Su ◽  
Yung-Lin Hsu ◽  
...  
Keyword(s):  
Multiple Access ◽  
Frame Structure ◽  
New Radio

scholarly journals Flexible 5G New Radio LDPC Encoder Optimized for High Hardware Usage Efficiency

Electronics ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1106
Author(s):  
Vladimir L. Petrović ◽  
Dragomir M. El Mezeni ◽  
Andreja Radošević
Keyword(s):  
Channel Coding ◽  
Parallel Architecture ◽  
Ldpc Codes ◽  
Parity Check ◽  
Case Scenario ◽  
New Radio ◽  
Physical Channel ◽  
Computationally Intensive ◽  
Hardware Processing ◽  
Usage Efficiency

Quasi-cyclic low-density parity-check (QC–LDPC) codes are introduced as a physical channel coding solution for data channels in 5G new radio (5G NR). Depending on the use case scenario, this standard proposes the usage of a wide variety of codes, which imposes the need for high encoder flexibility. LDPC codes from 5G NR have a convenient structure and can be efficiently encoded using forward substitution and without computationally intensive multiplications with dense matrices. However, the state-of-the-art solutions for encoder hardware implementation can be inefficient since many hardware processing units stay idle during the encoding process. This paper proposes a novel partially parallel architecture that can provide high hardware usage efficiency (HUE) while achieving encoder flexibility and support for all 5G NR codes. The proposed architecture includes a flexible circular shifting network, which is capable of shifting a single large bit vector or multiple smaller bit vectors depending on the code. The encoder architecture was built around the shifter in a way that multiple parity check matrix elements can be processed in parallel for short codes, thus providing almost the same level of parallelism as for long codes. The processing schedule was optimized for minimal encoding time using the genetic algorithm. The optimized encoder provided high throughputs, low latency, and up-to-date the best HUE.

scholarly journals Low-Complexity High-Throughput QC-LDPC Decoder for 5G New Radio Wireless Communication

Electronics ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 516
Author(s):  
Tram Thi Bao Nguyen ◽  
Tuy Nguyen Tan ◽  
Hanho Lee
Keyword(s):  
Wireless Communication ◽  
High Throughput ◽  
Low Complexity ◽  
Ldpc Decoder ◽  
Processor Architectures ◽  
New Radio ◽  
Decoder Architecture ◽  
Check Node ◽  
Information Update ◽  
Wireless Standards

This paper presents a pipelined layered quasi-cyclic low-density parity-check (QC-LDPC) decoder architecture targeting low-complexity, high-throughput, and efficient use of hardware resources compliant with the specifications of 5G new radio (NR) wireless communication standard. First, a combined min-sum (CMS) decoding algorithm, which is a combination of the offset min-sum and the original min-sum algorithm, is proposed. Then, a low-complexity and high-throughput pipelined layered QC-LDPC decoder architecture for enhanced mobile broadband specifications in 5G NR wireless standards based on CMS algorithm with pipeline layered scheduling is presented. Enhanced versions of check node-based processor architectures are proposed to improve the complexity of the LDPC decoders. An efficient minimum-finder for the check node unit architecture that reduces the hardware required for the computation of the first two minima is introduced. Moreover, a low complexity a posteriori information update unit architecture, which only requires one adder array for their operations, is presented. The proposed architecture shows significant improvements in terms of area and throughput compared to other QC-LDPC decoder architectures available in the literature.

Compact dual and triple band antennas for 5G-IOT applications

2021 ◽  
pp. 1-8
Author(s):  
Ruchi ◽  
Amalendu Patnaik ◽  
M. V. Kartikeyan
Keyword(s):  
Microwave Frequency ◽  
Mobile Internet ◽  
Dual Band ◽  
Impedance Bandwidth ◽  
Printed Antenna ◽  
Iot Applications ◽  
Multiband Antennas ◽  
New Radio ◽  
Compact Size ◽  
Triple Band

Abstract Designing miniaturized multiband antennas to cover both the 5G new radio frequencies (FR1 and FR2) simultaneously is a challenge for wireless communication researchers. This paper presents two antenna designs : a dual-band printed antenna of size 18 × 16 × 0.285 mm3 operating at FR1–5.8 GHz and FR2–28 GHz and a triple-band printed antenna with dimensions 30 × 25 × 0.543 mm3 operating at FR1–3.5 GHz and 5.8 GHz (sub-6 GHz microwave frequency bands) and FR2–28 GHz (mm-wave frequency band). The final projected triple-band antenna has a compact size with an impedance bandwidth of 12.71%, 11.32%, and 18.3% at 3.5 GHz, 5.8 GHz, and 28 GHz, respectively with the corresponding gain of 1.86 dB, 2.55 dB, and 4.41 dB. The measured radiation characteristics of the fabricated prototypes show that the proposed designs are suitable for trendy 5G-RFID and mobile Internet of things (IoT) applications.

scholarly journals High Area-Efficient Parallel Encoder with Compatible Architecture for 5G LDPC Codes

Symmetry ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 700
Author(s):  
Yufei Zhu ◽  
Zuocheng Xing ◽  
Zerun Li ◽  
Yang Zhang ◽  
Yifan Hu
Keyword(s):  
High Performance ◽  
Ldpc Codes ◽  
Low Complexity ◽  
Cmos Technology ◽  
Area Efficiency ◽  
Prior Art ◽  
New Radio ◽  
High Area ◽  
Significant Area ◽  
Area Efficient

This paper presents a novel parallel quasi-cyclic low-density parity-check (QC-LDPC) encoding algorithm with low complexity, which is compatible with the 5th generation (5G) new radio (NR). Basing on the algorithm, we propose a high area-efficient parallel encoder with compatible architecture. The proposed encoder has the advantages of parallel encoding and pipelined operations. Furthermore, it is designed as a configurable encoding structure, which is fully compatible with different base graphs of 5G LDPC. Thus, the encoder architecture has flexible adaptability for various 5G LDPC codes. The proposed encoder was synthesized in a 65 nm CMOS technology. According to the encoder architecture, we implemented nine encoders for distributed lifting sizes of two base graphs. The eperimental results show that the encoder has high performance and significant area-efficiency, which is better than related prior art. This work includes a whole set of encoding algorithm and the compatible encoders, which are fully compatible with different base graphs of 5G LDPC codes. Therefore, it has more flexible adaptability for various 5G application scenarios.

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