Log in

Relevant bibliographies by topics / Time Division Duplexing, TDD / Journal articles

To see the other types of publications on this topic, follow the link: Time Division Duplexing, TDD.

Journal articles on the topic 'Time Division Duplexing, TDD'

Author: Grafiati

Published: 31 May 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Time Division Duplexing, TDD.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Iancu, Daniel, John Glossner, Gary Nacer, Stuart Stanley, Vitaly Kolashnikov, and Joe Hoane. "Software defined radio platform with wideband tunable front end." International Journal of Engineering & Technology 4, no. 1 (2015): 97. http://dx.doi.org/10.14419/ijet.v4i1.4160.

Full text

Abstract:

The paper presents a Software Defined Radio (SDR) development platform with wideband tunable RF (Radio Frequency) front end. The platform is based on the SB3500 Multicore Multithreaded Vector Processor and it is intended to be used for a wide variety of communication protocols as: Time Division Duplexing/Frequency Division Duplexing Long Term Evolution (TDD/FDD LTE), Global Positioning System (GPS), Global System for Mobile/General Packet Radio Service (GSM/GPRS), Wireless Local Area Network (WLAN), Legacy Worldwide Interoperability for Microwave Access (WiMAX). As an example, we describe brie

APA, Harvard, Vancouver, ISO, and other styles

2

Imzhagi, Riskafian Medika, Hasanah Putri, and Hendrik Dwi Priyanto. "Comparative Analysis of TDD Frame Structure Technology LTE-Advanced (A Case Study in Cibitung Area Indonesia)." Journal of Hunan University Natural Sciences 49, no. 1 (2022): 141–48. http://dx.doi.org/10.55463/issn.1674-2974.49.1.18.

Full text

Abstract:

Based on the results of the drive-test, it showed that 72.22% of the Gramapuri Tamansari Cibitung area had downlink throughput quality below the standard of Key Performance Indicator (KPI) parameter, which was less than 8 Mbps. In addition, based on the Operation and Support System (OSS) data, in this area, the value of Physical Resource Block (PRB) utilization reached 83.93%; thus, an additional capacity from the downlink was needed. This study aims to compare Time Division Duplexing (TDD) frame structure and Inter-Band Carrier Aggregation FDD-TDD method in the Cibitung area, with band 3 FDD

APA, Harvard, Vancouver, ISO, and other styles

3

Dikmen, Osman, and Selman Kulaç. "Determination of Effective Mode Selection for Ensuring Spectrum Efficiency with Massive MIMO in IoT Systems." Sensors 19, no. 3 (2019): 706. http://dx.doi.org/10.3390/s19030706.

Full text

Abstract:

Wireless Sensor Networks (WSNs) based on Internet of Things (IoT) applications are increasing day by day. These applications include healthcare, infrastructure monitoring, smart homes, wearable devices and smart cars. However, considering the fact that many different application areas will emerge in next generation wireless communication systems, efficient use of frequency spectrum is important. Because the whole frequency spectrum is now very crowded, it is important to ensure maximum spectrum efficiency for effective WSNs based on IoT. This study sought to determine which mode more effective

APA, Harvard, Vancouver, ISO, and other styles

4

Fan, Wei, Pekka Kyösti, Jesper Ø. Nielsen, Lassi Hentilä, and Gert F. Pedersen. "Emulating Realistic Bidirectional Spatial Channels for MIMO OTA Testing." International Journal of Antennas and Propagation 2015 (2015): 1–13. http://dx.doi.org/10.1155/2015/289843.

Full text

Abstract:

This paper discusses over the air (OTA) testing for multiple input multiple output (MIMO) capable terminals with emphasis on modeling bidirectional spatial channel models in multiprobe anechoic chamber (MPAC) setups. In the literature, work on this topic has been mainly focused on how to emulate downlink channel models, whereas uplink channel is often modeled as free space line-of-sight channel without fading. Modeling realistic bidirectional (i.e., both uplink and downlink) propagation environments is essential to evaluate any bidirectional communication systems. There have been works stressi

APA, Harvard, Vancouver, ISO, and other styles

5

Franci, Daniele, Stefano Coltellacci, Enrico Grillo, et al. "An Experimental Investigation on the Impact of Duplexing and Beamforming Techniques in Field Measurements of 5G Signals." Electronics 9, no. 2 (2020): 223. http://dx.doi.org/10.3390/electronics9020223.

Full text

Abstract:

The fifth generation mobile network introduces dramatic improvements with respect to the previous technologies. Features such as variable numerology, bandwidth parts, massive Multiple Input Multiple Output (MIMO) and Time Division Duplex (TDD) will extend the capabilities of the 5G wireless systems and, at the same time, will influence the measurement techniques used to assess the compliance with general public electromagnetic field exposure limits. In this study, a heterogeneous set of 5G signals is investigated with the aim of establishing an effective measurement technique suitable for the

APA, Harvard, Vancouver, ISO, and other styles

6

Lee, Jaewon, Minjoong Rim, and Chung G. Kang. "Decentralized Slot-Ordered Cross Link Interference Control Scheme for Dynamic Time Division Duplexing (TDD) in 5G Cellular System." IEEE Access 9 (2021): 63567–79. http://dx.doi.org/10.1109/access.2021.3074176.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Quang, Khanh Nguyen, Van Duc Nguyen, and Hyunseung Choo. "Dynamic Subchannel Assignment-Based Cross-Layer MAC and Network Protocol for Multihop Ad Hoc Networks." Journal of Computer Networks and Communications 2013 (2013): 1–9. http://dx.doi.org/10.1155/2013/962643.

Full text

Abstract:

The paper presents a dynamic subchannel assignment algorithm based on orthogonal frequency division multiple access technology operating in the time division duplexing and a new cross-layer design based on a proposed routing protocol jointed with the MAC protocol. The proposed dynamic sub-channel assignment algorithm provides a new interference avoidance mechanism which solves several drawbacks of existing radio resource allocation techniques in wireless networks using OFDMA/TDD, such as the hidden node and exposed node problems, mobility, and cochannels interference in frequency (CCI). Beside

APA, Harvard, Vancouver, ISO, and other styles

8

Wang, Li, Xiaoyan Zhao, Cheng Wang, and Weidong Wang. "Resource Allocation Algorithm Based on Power Control and Dynamic Transmission Protocol Configuration for HAPS-IMT Integrated System." Electronics 11, no. 1 (2021): 44. http://dx.doi.org/10.3390/electronics11010044.

Full text

Abstract:

The high altitude platform station (HAPS) system is an essential component of the air-based network. It can shorten transmission delay and make a better user experience compared with satellite networks, and it can also be easily deployed and cover a larger area compared with international mobile telecommunications (IMT). In order to meet the needs of users with asymmetric and random data flow, the spectrum sharing and dynamic time division duplexing (TDD) mode are used in HAPS-IMT heterogeneous network. However, the cross-link interference brought by TDD mode will lead to the degradation of sy

APA, Harvard, Vancouver, ISO, and other styles

9

Franci, Daniele, Stefano Coltellacci, Enrico Grillo, et al. "Experimental Procedure for Fifth Generation (5G) Electromagnetic Field (EMF) Measurement and Maximum Power Extrapolation for Human Exposure Assessment." Environments 7, no. 3 (2020): 22. http://dx.doi.org/10.3390/environments7030022.

Full text

Abstract:

The fifth generation (5G) technology has been conceived to cover multiple usage scenarios from enhanced mobile broadband to ultra-reliable low-latency communications (URLLC) to massive machine type communications. However, the implementation of this new technology is causing increasing concern over the possible impact on health and safety arising from exposure to electromagnetic field radiated by 5G systems, making imperative the development of accurate electromagnetic field (EMF) measurement techniques and protocols. Measurement techniques used to assess the compliance with EMF exposure limit

APA, Harvard, Vancouver, ISO, and other styles

10

Beyene, Yihenew, Kalle Ruttik, and Riku Jäntti. "Angular Domain Data-Assisted Channel Estimation for Pilot Decontamination in Massive MIMO." Mobile Information Systems 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/2785948.

Full text

Abstract:

Massive Multiple-Input-Multiple-Output (M-MIMO) system is a promising technology that offers to mobile networks substantial increase in throughput. In Time-Division Duplexing (TDD), the uplink training allows a Base Station (BS) to acquire Channel State Information (CSI) for both uplink reception and downlink transmission. This is essential for M-MIMO systems where downlink training pilots would consume large portion of the bandwidth. In densely populated areas, pilot symbols are reused among neighboring cells. Pilot contamination is the fundamental bottleneck on the performance of M-MIMO syst

APA, Harvard, Vancouver, ISO, and other styles

11

Liang, Ya‐Chuan, Kai‐Kai Liu, Xue‐Ying Wu, et al. "Lifetime‐Engineered Carbon Nanodots for Time Division Duplexing." Advanced Science 8, no. 6 (2021): 2003433. http://dx.doi.org/10.1002/advs.202003433.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Mamane, Asmae, Mohammed Fattah, Mohammed El Ghazi, and Moulhime El Bekkali. "5G Enhanced Mobile Broadband (eMBB): Evaluation of Scheduling Algorithms Performances for Time-Division Duplex Mode." International Journal of Interactive Mobile Technologies (iJIM) 16, no. 01 (2022): 120–31. http://dx.doi.org/10.3991/ijim.v16i01.25941.

Full text

Abstract:

5G mobile communications introduce novel solutions to overcome the frequency spectrum’s shortage. It broadens the spectrum band to millimeter-waves, employs multiple numerologies to calculate subcarrier spacing, and supports various division duplex modes. Furthermore, the fifth generation of mobile networks intends to employ both, frequency division duplex, and time division duplex. This study focuses on Time Division Duplex (TDD) mode. Compared to the Frequency Division Duplex (FDD), the time duplex mode enhances flexibility and allows efficient frequency spectrum usage. However, the recent p

APA, Harvard, Vancouver, ISO, and other styles

13

Guimaraes, Francisco R. V., Gabor Fodor, Walter C. Freitas, and Yuri C. B. Silva. "Pricing-Based Distributed Beamforming for Dynamic Time Division Duplexing Systems." IEEE Transactions on Vehicular Technology 67, no. 4 (2018): 3145–57. http://dx.doi.org/10.1109/tvt.2017.2777477.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Lucani, Daniel E., Muriel Medard, and Milica Stojanovic. "On Coding for Delay—Network Coding for Time-Division Duplexing." IEEE Transactions on Information Theory 58, no. 4 (2012): 2330–48. http://dx.doi.org/10.1109/tit.2011.2177562.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Kim, Hyun Geon, and Ho-Shin Cho. "Interference Management Using Crossed-Slot in Dynamic Time Division Duplexing Systems." IEEE Access 7 (2019): 135377–85. http://dx.doi.org/10.1109/access.2019.2942199.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Al-awadi, Aws Majeed, and Mohammed Jawad Al-dujaili. "Simulation of LTE-TDD in the HAPS channel." International Journal of Electrical and Computer Engineering (IJECE) 10, no. 3 (2020): 3152. http://dx.doi.org/10.11591/ijece.v10i3.pp3152-3157.

Full text

Abstract:

LTE stands for Long Term Evolution. This technology enhances the data rate and capacity using a new radio interface and an optimized core network. This progress was done to satisfy standards defined for the fourth generation of cellular communications in ITU. LTE has two types of transmission: Frequency Division Duplex (FDD) and Time Division Duplex (TDD). Nowadays, LTE-TDD rapidly Grows and takes place of old fixed cellular communications, like WiMAX. Another upcoming technology in the communication industry is High Amplitude Platform Stations (HAPS). Studying the capability of HAPS as a base

APA, Harvard, Vancouver, ISO, and other styles

17

Chen, Xiangyu, Gang Chuai, and Weidong Gao. "Multi-Agent Reinforcement Learning Based Fully Decentralized Dynamic Time Division Configuration for 5G and B5G Network." Sensors 22, no. 5 (2022): 1746. http://dx.doi.org/10.3390/s22051746.

Full text

Abstract:

Future network services must adapt to the highly dynamic uplink and downlink traffic. To fulfill this requirement, the 3rd Generation Partnership Project (3GPP) proposed dynamic time division duplex (D-TDD) technology in Long Term Evolution (LTE) Release 11. Afterward, the 3GPP RAN#86 meeting clarified that 5G NR needs to support dynamic adjustment of the duplex pattern (transmission direction) in the time domain. Although 5G NR provides a more flexible duplex pattern, how to configure an effective duplex pattern according to services traffic is still an open research area. In this research, w

APA, Harvard, Vancouver, ISO, and other styles

18

Yu, Rao, Chen Wei, and Cao Zhigang. "Downlink/uplink identification of time-division duplexing-OFDMA systems for cognitive radios." China Communications 10, no. 6 (2013): 68–78. http://dx.doi.org/10.1109/cc.2013.6549260.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Hu, Sanqing, and Yu-Dong Yao. "Adaptive time division duplexing network with network coding embedded two-way relay." IET Communications 8, no. 12 (2014): 2153–61. http://dx.doi.org/10.1049/iet-com.2013.0847.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Kim, Hyeon-seong, and Ho-Shin Cho. "Time-Slot Allocation in Dynamic Time Division Duplexing System using Non-Orthogonal Multiple Access." Journal of the Korea Academia-Industrial cooperation Society 22, no. 8 (2021): 32–39. http://dx.doi.org/10.5762/kais.2021.22.8.32.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Backfrieder, Christian, and Gerald Ostermayer. "Analysis of an Adaptive Switching Point for LTE TDD by Dynamic System-Level Simulations." International Journal of Electronics and Telecommunications 61, no. 2 (2015): 171–78. http://dx.doi.org/10.1515/eletel-2015-0022.

Full text

Abstract:

Abstract This paper introduces an LTE system level simulator and presents investigations of scenarios with differently balanced traffic emergence between uplink and downlink as well as inhomogeneous distribution of link direction asymmetry. In the TDD mode of LTE, duplexing is implemented via sharing the time domain between uplink and downlink users. This is done by different switching configurations, which offer varying capacity distributions between downlink and uplink, from a downlink-heavy configuration with 90 percent of the capacity in downlink direction to uplink heavy configurations wi

APA, Harvard, Vancouver, ISO, and other styles

22

Peng, Xidan, and Xiangyang Li. "Performance Analysis for Analog Network Coding with Imperfect CSI in FDD Two Way Channels." Journal of Systems Science and Information 3, no. 4 (2015): 357–64. http://dx.doi.org/10.1515/jssi-2015-0357.

Full text

Abstract:

AbstractA time-division duplex (TDD) two-way channel exploits reciprocity to estimate the forward channel gain from the reverse link. Many previous works explore outage probabilities in the TDD system, based on the reciprocity property. However, a frequency-division duplex (FDD) system has no reciprocity property. In this letter, we investigate the impact of CSI estimation error on the performance of non-orthogonal and orthogonal analog network coding protocols in an FDD two-way system, where channel gains are independent of each other. Considering imperfect CSI, the closed-form expressions of

APA, Harvard, Vancouver, ISO, and other styles

23

Papadopoulos, H. C., and C. E. W. Sundberg. "Reduction of mixed cochannel interference in microcellular shared time-division duplexing (STDD) systems." IEEE Transactions on Vehicular Technology 47, no. 3 (1998): 842–55. http://dx.doi.org/10.1109/25.704839.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Ramamoorthi, Yoghitha, and Abhinav Kumar. "Dynamic Time Division Duplexing for Downlink/Uplink Decoupled Millimeter Wave-Based Cellular Networks." IEEE Communications Letters 23, no. 8 (2019): 1441–45. http://dx.doi.org/10.1109/lcomm.2019.2920641.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Kim, Jun Suk, Bum-Gon Choi, Sueng Jae Bae, Inshil Doh, and Min Young Chung. "Adaptive time division duplexing configuration mode selection mechanism for accommodating asymmetric traffic in time division long term evolution-advanced systems." Transactions on Emerging Telecommunications Technologies 24, no. 3 (2013): 342–51. http://dx.doi.org/10.1002/ett.2630.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Magesacher, Thomas, and Elmar Trojer. "Single-Kernel Fast Fourier Transform/IFFT Processing for Time-Division Duplexing-Discrete Multi-Tone." Advanced Science Letters 19, no. 8 (2013): 2515–18. http://dx.doi.org/10.1166/asl.2013.4965.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Meurer, M., P. W. Baier, T. Weber, Y. Lu, and A. Papathanassiou. "Joint transmission: advantageous downlink concept for CDMA mobile radio systems using time division duplexing." Electronics Letters 36, no. 10 (2000): 900. http://dx.doi.org/10.1049/el:20000671.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Xia, Pengfei, Robert W. Heath, and Nuria Gonzalez-Prelcic. "Robust Analog Precoding Designs for Millimeter Wave MIMO Transceivers With Frequency and Time Division Duplexing." IEEE Transactions on Communications 64, no. 11 (2016): 4622–34. http://dx.doi.org/10.1109/tcomm.2016.2604312.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Wai-Choong Wong, C. E. W. Sundberg, and N. Seshadri. "Shared time division duplexing: an approach to low-delay high-quality wireless digital speech communications." IEEE Transactions on Vehicular Technology 43, no. 4 (1994): 934–45. http://dx.doi.org/10.1109/25.330156.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Shim, Yongwoon, and Dong-Hee Shin. "Analyzing the development of 4th generation mobile network in China: actor network theory perspective." info 17, no. 1 (2015): 22–38. http://dx.doi.org/10.1108/info-09-2014-0041.

Full text

Abstract:

Purpose – This paper aims to provide an in-depth analysis of the process of standards setting based on the case of long-term evolution time division duplex (LTE TDD) deployment in China. Design/methodology/approach – Using actor-network theory (ANT) as a theoretical framework, multi-level analyses are presented to explain the process of adoption of LTE TDD at a global level. Findings – Findings identified the complex interaction between the social and technical aspects of fourth-generation (4G) by highlighting the co-evolving nature, diversity and interface that constitute the next-generation

APA, Harvard, Vancouver, ISO, and other styles

31

Zhang, X., H. H. Chen, Z. Ding, K. K. Leung, M. Peng, and W. Wang. "Performance of network-coding-assisted scheduling schemes and their applications in uplink time division duplexing code division multiple access systems." IET Communications 5, no. 17 (2011): 2558–68. http://dx.doi.org/10.1049/iet-com.2010.1045.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

K.Venkatesh, G., and P. V.Rao. "Performance analysis of a novel method for fast handovers in TDD and FDD for long term evolution." International Journal of Engineering & Technology 7, no. 1.9 (2018): 115. http://dx.doi.org/10.14419/ijet.v7i1.9.9745.

Full text

Abstract:

The LTE Long Term Evolution highly developed Technology, Handover is the essential function of the mobility of user in cellular networks in Time Division Duplex as well as Frequency Division Duplex. Handover is one of the essential that can affect the [QoS] Quality of Service with Capacity of Mobile Broadband Networks. Within mobile cellular network communication systems, a (spectrum) limited shared resource needs to be shared with all the users, so full duplex communication is achieved. This paper involves studying diverse Hand over delay parameters and also focus on reducing “Hard Handover d

APA, Harvard, Vancouver, ISO, and other styles

33

Sulaeman, Enceng, Yaya Sulaeman, and Asep Yudi Hercuadi. "Desain dan Implementasi Duplekser dengan Metoda Pseudo-Interdigital untuk Uplink dan Downlink LTE." Jurnal Elektronika dan Telekomunikasi 13, no. 2 (2016): 73. http://dx.doi.org/10.14203/jet.v13.73-80.

Full text

Abstract:

Duplekser merupakan perangkat yang dapat mengisolasi receiver dari transmitter saat keduanya saling berbagi antena yang sama, digunakan agar komunikasi bisa berjalan secara full duplex. Ada dua metode transmisi duplex yaitu frequency division duplex (FDD) dan time division duplex (TDD). FDD merupakan teknik duplex yang menggunakan dua frekuensi yang berbeda untuk melakukan komunikasi dalam dua arah, sedangkan TDD menggunakan frekuensi tunggal dan frekuensi tersebut digunakan oleh semua kanal untuk melakukan pengiriman dan penerimaan data. Gabungan dua bandpass filter dengan metoda pseudo-inter

APA, Harvard, Vancouver, ISO, and other styles

34

Papadopoulos, H. C., and C. E. W. Sundberg. "Shared time-division duplexing (STDD): impact of runlengths of dropped packets and fast-speech activity detection." IEEE Transactions on Vehicular Technology 47, no. 3 (1998): 856–70. http://dx.doi.org/10.1109/25.704840.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Faregh, Effatsadat, and Mohammad Javad Dehghani. "Performance analysis of MIMO and MISO time division duplexing wireless links with SWIPT and antenna selection." Wireless Networks 26, no. 6 (2020): 4517–28. http://dx.doi.org/10.1007/s11276-020-02337-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Kalidoss, R., M. A. Bhagyaveni, and K. S. Vishvaksenan. "A Location-Based Duplex Scheme for Cost Effective Rural Broadband Connectivity Using IEEE 802.22 Cognitive Radio Based Wireless Regional Area Networks." Fluctuation and Noise Letters 13, no. 04 (2014): 1450028. http://dx.doi.org/10.1142/s021947751450028x.

Full text

Abstract:

The search for a method of utilizing the scarce spectrum in an efficient manner is an active area of research in both academic and industrial communities. IEEE 802.22 is a standard for wireless regional area network (WRAN) based on cognitive radio (CR) that operates over underutilized portions of TV bands (54–862 MHz). Time division duplex (TDD)-based WRAN cells have such advantages as dynamic traffic allocation, traffic asymmetry to users and ease of spectrum allocation. However, these cells suffer from severe cross time slot (CTS) interference when the frames of the cells are not synchronize

APA, Harvard, Vancouver, ISO, and other styles

37

HOSSAIN, EKRAM, and VIJAY K. BHARGAVA. "LINK-STATE AWARE DYNAMIC TRAFFIC SCHEDULING FOR PROVIDING PREDICTIVE QoS IN WIRELESS MOBILE MULTIMEDIA NETWORKS." Journal of Interconnection Networks 01, no. 03 (2000): 221–45. http://dx.doi.org/10.1142/s0219265900000147.

Full text

Abstract:

The performance of a centralized traffic priority based dynamic burst-level cell scheduling scheme is investigated in a correlated fading channel. The scheduling scheme is designed for the transmission of multiservice traffic over TDMA (Time Division Multiple Access)/TDD (Time Division Duplex) channels in a WATM (Wireless ATM) network. In this scheme, the number of slots allocated to a VC (Virtual Circuit) during a frame-time is changed dynamically depending on the traffic type, system traffic load, TOE (Time of Expiry) value of the data burst and data burst length. While allocating bandwidth,

APA, Harvard, Vancouver, ISO, and other styles

38

Xue, Linshan, Xue Li, Weiren Wu, and Yikang Yang. "Design of Tracking, Telemetry, Command (TT&C) and Data Transmission Integrated Signal in TDD Mode." Remote Sensing 12, no. 20 (2020): 3340. http://dx.doi.org/10.3390/rs12203340.

Full text

Abstract:

For satellite or aircraft networks, tracking, telemetry, and control (TT&C) and data transmission between different nodes are necessary. Traditional measurement mostly adopts the frequency division duplex (FDD) mode and uses a continuous measurement system to achieve high-precision measurement. However, as the number of network nodes increases, the mode suffers from complex frequency domain allocation, and high-cost measurement and data transmission equipment is required. This paper proposes the integrated signal in time division duplex (TDD) mode to improve frequency utilization to addres

APA, Harvard, Vancouver, ISO, and other styles

39

Liu, Zu-Jun, De-Chun Sun, Ke-Chu Yi, and Jie-Ling Wang. "Impact and compensation of I/Q imbalance on channel reciprocity of time-division-duplexing multiple-input multiple-output systems." IET Communications 7, no. 7 (2013): 663–72. http://dx.doi.org/10.1049/iet-com.2012.0620.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Hakim, N. F. A., T. Hariyadi, A. B. Pantjawati, and B. Mulyanti. "Analysis high gain waveguide slot antenna 2.3 GHz for Long Term Evolution-Time Division Duplex (LTE-TDD)." IOP Conference Series: Materials Science and Engineering 850 (May 23, 2020): 012054. http://dx.doi.org/10.1088/1757-899x/850/1/012054.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Nilofer, Shaik. "A Review of Massive Multiple Input Multiple Output for 5G Communication: Benefits and Challenges." International Journal of Intelligent Communication, Computing and Networks 1, no. 1 (2020): 22–26. http://dx.doi.org/10.51735/ijiccn/001/09.

Full text

Abstract:

Massive MIMO (mMIMO) systems become a primary advantage to overcome the problem of bandwidth restrictions. It improves the channel capacity of remote systems.The paper reviews about mMIMO systems. mMIMO consists of several number of antennas at base station (BS) which improves spectrum efficacy. The extra benefit of the mMIMO system is that the components cost is low because of utilization of less power components. The paper also discusses about the channel estimation at the BS and generally time division mode (TDD) is assumed for mMIMO systems. The paper also discusses system model, benefits

APA, Harvard, Vancouver, ISO, and other styles

42

Wang, Hung-Hsiang, Hsin-An Hou, and Jyh-Cheng Chen. "Design and Analysis of an Antenna Control Mechanism for Time Division Duplexing Distributed Antenna Systems Over High-Speed Rail Communications." IEEE Transactions on Emerging Topics in Computing 4, no. 4 (2016): 516–27. http://dx.doi.org/10.1109/tetc.2015.2414231.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Jiang, Zheng, Bin Han, Peng Chen, Fengyi Yang, and Qi Bi. "Design of Joint Spatial and Power Domain Multiplexing Scheme for Massive MIMO Systems." International Journal of Antennas and Propagation 2015 (2015): 1–10. http://dx.doi.org/10.1155/2015/368463.

Full text

Abstract:

Massive Multiple-Input Multiple-Output (MIMO) is one of the key techniques in 5th generation wireless systems (5G) due to its potential ability to improve spectral efficiency. Most of the existing works on massive MIMO only consider Time Division Duplex (TDD) operation that relies on channel reciprocity between uplink and downlink channels. For Frequency Division Duplex (FDD) systems, with continued efforts, some downlink multiuser MIMO scheme was recently proposed in order to enable “massive MIMO” gains and simplified system operations with limited number of radio frequency (RF) chains in FDD

APA, Harvard, Vancouver, ISO, and other styles

44

Zhang, Xiang, Xinyu Gu, Wenyu Li, Lin Zhang, Jia Shen, and Yi Wan. "The Study of Indoor and Field Trials on2×8MIMO Architecture in TD-LTE Network." International Journal of Antennas and Propagation 2013 (2013): 1–9. http://dx.doi.org/10.1155/2013/181579.

Full text

Abstract:

With the development of mobile internet service, long-term evolution (LTE) system was proposed in the third generation partnership project (3GPP) to provide higher data rates and frequency efficiency. Since the year of 2010, 113 LTE networks have been commercially deployed worldwide, and most of the networks are based on frequency division duplexing (FDD). In this paper, measurement methods of four MIMO transmission modes (TMs) in time division-LTE (TD-LTE) are studied and analyzed. Link level simulation is carried out to evaluate the downlink throughput for different signal-to-noise ratios an

APA, Harvard, Vancouver, ISO, and other styles

45

Zhang, Weipeng. "Design of Radio Frequency Link in Automatic Test System for Multimode Mobile Communication Base Station." International Journal of Bifurcation and Chaos 25, no. 14 (2015): 1540032. http://dx.doi.org/10.1142/s0218127415400325.

Full text

Abstract:

A modularized design for the radio frequency (RF) link in automatic test system of multimode mobile communication base station is presented, considering also the characteristics of wireless communication indices and composition of signals of base stations. The test link is divided into general module, time division duplex (TDD) module, module of spurious noise filter, module of downlink intermodulation, module of uplink intermodulation and uplink block module. The composition of modules and link functions are defined, and the interfaces of the general module and the module of spurious noise fi

APA, Harvard, Vancouver, ISO, and other styles

46

Winarti, Titin. "SISTEM KOMUNIKASI SELULER DENGAN UNIVERSAL MOBILE TELEPHONE SYSTEM ( UMTS )." Jurnal Transformatika 4, no. 2 (2007): 50. http://dx.doi.org/10.26623/transformatika.v4i2.19.

Full text

Abstract:

<span>Sistem celuler GSM memiliki beberapa kekurangan, yaitu tidak mampu untuk mengintegrasikan layanan video call dan video streaming karena kecepatan data masih rendah. Dengan alasan itu, maka ETSI menentukan migrasi dari GSM ke sistem generasi seluler ketiga yang disebut dengan UMTS (Universal Mobile Telephone System). Adapun spektrum frekuensi UMTS terestrial bekerja pada 1920-1980 MHz, 2110-2170 MHz untuk dipasangkan dari band dan 1900-1920 MHz, 2010-2025 MHz untuk tidak berpasangan dari band Seiring dengan perkembangan teknologi, teknologi telekomunikasi sistem seluler terus berkem

APA, Harvard, Vancouver, ISO, and other styles

47

Kusuma, Fadli, and Hasanah Putri. "Increasing LTE-Advanced Network Capacity Using The Inter-band Carrier Aggregation (Downlink Side) Method." JURNAL INFOTEL 12, no. 2 (2020): 52–59. http://dx.doi.org/10.20895/infotel.v12i2.474.

Full text

Abstract:

According to the identification of the Operating Support System (OSS) by the Smartfren cellular operator in the Central Bandung area, six sites are found to have high traffic capacity with the physical resource block (PRb) percentage of 82.6 %. The use of PRb > 80 % is included in the warning indicator 2 based on the operator’s standards. It is also strengthened by the condition of the existing sites with the average Reference Signal Receive Power (RSRP) of -103.3 dBm, Signal to Interference Noise Ratio (SINR) of 6.28 dB, and throughput of 27.78 Mbps, thus resulting in non-optimal network p

APA, Harvard, Vancouver, ISO, and other styles

48

Yaqoob, Y. J. I. A., W. L. Pang, S. K. Wong, and K. Y. Chan. "Performance evaluation of video streaming on LTE with coexistence of Wi-Fi signal." Bulletin of Electrical Engineering and Informatics 8, no. 3 (2019): 890–97. http://dx.doi.org/10.11591/eei.v8i3.1580.

Full text

Abstract:

The continuous growth in mobile data traffic and limited license wireless spectrum have led to dramatically increase the demand of the radio spectrum. It is widespread the concern about the coexistence of long term evolution (LTE) and Wi-Fi in the unlicensed band. There are several techniques have been proposed to enable the coexistence of LTE and Wi-Fi in the unlicensed band, but these works are targeted on the impact of the LTE to the Wi-Fi network performance. An experiment is carried out in this work to evaluate the impact of Wi-Fi signal on the video streaming in the LTE network. The expe

APA, Harvard, Vancouver, ISO, and other styles

49

Zhong, Shida, Haogang Feng, Peichang Zhang, et al. "Deep Learning Based Antenna Selection for MIMO SDR System." Sensors 20, no. 23 (2020): 6987. http://dx.doi.org/10.3390/s20236987.

Full text

Abstract:

In this paper, we propose and implement a novel framework of deep learning based antenna selection (DLBAS)-aided multiple-input–multiple-output (MIMO) software defined radio (SDR) system. The system is constructed with the following three steps: (1) a MIMO SDR communication platform is first constructed, which is capable of achieving uplink communication from users to the base station via time division duplex (TDD); (2) we use the deep neural network (DNN) from our previous work to construct a deep learning decision server to assist the MIMO SDR platform for making intelligent decision for ant

APA, Harvard, Vancouver, ISO, and other styles

50

Kim, Kyunghoon, Hyunwook Yang, Jaehyun Jang, Tiefeng Sun, Seungwon Choi, and Jaeho Jung. "Online Calibration for LTE-Based Antenna Array System." International Journal of Antennas and Propagation 2016 (2016): 1–10. http://dx.doi.org/10.1155/2016/2645870.

Full text

Abstract:

This paper presents a novel calibration method that equalizes the impulse responses of all the Radio Frequency (RF) modules of an antenna array system operating in Long-Term Evolution (LTE) evolved NodeB (eNB). The proposed technique utilizes the Zadoff-Chu (Z-C) sequence of the Primary Synchronization Signal (PSS) and Sounding Reference Signal (SRS) that are available in every LTE data frame for downlink and uplink, respectively, for estimating and compensating the differences in the impulse responses among the RF modules. The proposed calibration method is suitable for wide bandwidth signal

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!