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Relevant bibliographies by topics / Antennas (Electronics) Code division multiple access

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Academic literature on the topic 'Antennas (Electronics) Code division multiple access'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 February 2022

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Journal articles on the topic "Antennas (Electronics) Code division multiple access"

1

Jiménez-Pacheco, Alberto, Ángel Fernández-Herrero, and Javier Casajús-Quirós. "Design and Implementation of a Hardware Module for MIMO Decoding in a 4G Wireless Receiver." VLSI Design 2008 (January 31, 2008): 1–8. http://dx.doi.org/10.1155/2008/312614.

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Future 4th Generation (4G) wireless multiuser communication systems will have to provide advanced multimedia services to an increasing number of users, making good use of the scarce spectrum resources. Thus, 4G system design should pursue both higher-transmission bit rates and higher spectral efficiencies. To achieve this goal, multiple antenna systems are called to play a crucial role. In this contribution we address the implementation in FPGAs of a multiple-input multiple-output (MIMO) decoder embedded in a prototype of a 4G mobile receiver. This MIMO decoder is part of a multicarrier code-d

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2

Paul, Rajarshi, Luke Sankey, Luca Corradini, Zoya Popovic, and Dragan Maksimovic. "Power Management of Wideband Code Division Multiple Access RF Power Amplifiers With Antenna Mismatch." IEEE Transactions on Power Electronics 25, no. 4 (2010): 981–91. http://dx.doi.org/10.1109/tpel.2009.2036355.

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Shukla, Aasheesh, Vishal Goyal, Manish Kumar, Munesh Chandra Trivedi, and Vinay Kumar Deolia. "MMSE based beamformer in massive MIMO-IDMA downlink systems." Journal of Electrical Engineering 71, no. 1 (2020): 65–68. http://dx.doi.org/10.2478/jee-2020-0010.

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AbstractNow-a-days Massive MIMO (mMIMO) become an attractive technology due to its spectral and energy efficiency by the means of simple signal processing. However, in overloaded scenario, wherein the number of users equipments (UEs) are larger than number of antennas, the spectral effciency (SE) suffers and hence error rate performance, it has been shown recently that use of code domain NOMA in mMIMO can improve the SE performance. Further, interleave division multiple access (IDMA) has been drawn much attention as a suitable code domain non-orthogonal multiple access (NOMA) for future commun

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4

Lee, Jeong-An, Seung-Bok Byun, Jong-Hyuk Lim, and Tae-Yeoul Yun. "Reconfigurable antenna for wideband code division multiple access and Korean satellite digital multimedia broadcasting controlled by pin-diodes." Microwave and Optical Technology Letters 49, no. 6 (2007): 1334–37. http://dx.doi.org/10.1002/mop.22413.

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Shukla, Aasheesh. "Joint RSMA and IDMA-Based NOMA system for downlink Communication in 5G and Beyond Networks." Journal of communications software and systems 16, no. 4 (2020): 324–29. http://dx.doi.org/10.24138/jcomss.v16i4.1035.

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Future communication networks may encounter various issues in order to facilitate heavy heterogeneous data traffic and large number of users, therefore more advanced multiple access (MA) schemes is required to meet the changing requirements. Recently, a promising physical-layer MA technique has been suggested for multi-antenna broadcast channels, namely Rate Splitting Multiple Access (RSMA). This new scheme has the ability to partially decode the interference and partially treat the remaining interference as noise which makes it to cope with wide range of user deployments and network loads. On

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6

Yegnanarayanan, S., P. D. Trinh, and B. Jalali. "Recirculating photonic filter: a wavelength-selective time delay for phased-array antennas and wavelength code-division multiple access." Optics Letters 21, no. 10 (1996): 740. http://dx.doi.org/10.1364/ol.21.000740.

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7

Lee, Hongmin, and Jinwon Park. "Isolation Improvement of a Microstrip Patch Array Antenna for WCDMA Indoor Repeater Applications." International Journal of Antennas and Propagation 2012 (2012): 1–8. http://dx.doi.org/10.1155/2012/264618.

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This paper presents the isolation improvement techniques of a microstrip patch array antenna for the indoor wideband code division multiple access (WCDMA) repeater applications. One approach is to construct the single-feed switchable feed network structure with an MS/NRI coupled-line coupler in order to reduce the mutual coupling level between antennas. Another approach is to insert the soft surface unit cells near the edges of the microstrip patch elements in order to reduce backward radiation waves. In order to further improve the isolation level, the server antenna and donor antenna are ins

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8

Hwang, Yu Min, Eun Cheol Kim, and Jin Young Kim. "Performance Analysis of PN Code Acquisition with MIMO Scheme for an UWB TH/CDMA System." Wireless Communications and Mobile Computing 2018 (October 18, 2018): 1–11. http://dx.doi.org/10.1155/2018/2835741.

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This paper presents performance and its simulation results of pseudonoise (PN) code acquisition scheme with MIMO scheme for an ultra-wideband time-hopping/code-division-multiple-access (UWB TH/CDMA) system. The transmission channel is modelled as a frequency selective lognormal fading channel. In almost practical PN code acquisition system, the existence of more than two synchronous cells in the uncertainty region of the search process is possible due to multipath effect. Therefore, based on deriving the detection probability, false alarm rate, miss detection probability, and mean acquisition

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Yang, Jie, Hua Min Zhang, and Wu Xie. "MMSE-BLE Algorithm of Single-Carrier Multi-User Channel Capacity." Key Engineering Materials 480-481 (June 2011): 855–61. http://dx.doi.org/10.4028/www.scientific.net/kem.480-481.855.

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A kind of minimum mean square error linear equalizer (MMSE-BLE) algorithm is presented for the solution on channel capacity of single-carrier code division multiple accesses (SC-CDMA) system, this algorithm received data symbol vector multiplied by covariance matrix by using Wiener estimator, and gets the decorrelation of multiple access interference (MAI), inter-symbol interference (ISI) and noise. MMSE-BLE algorithm calculates the channel capacity with MMSE criterion algorithm, so that it can analyze the multi-user uplink channel capacity of space-time coding SC-CDMA system under the multipa

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10

Abdulkawi, Wazie M., Waqar Ahmad Malik, Sajjad Ur Rehman, Abdul Aziz, Abdel Fattah A. Sheta, and Majeed A. Alkanhal. "Design of a Compact Dual-Band MIMO Antenna System with High-Diversity Gain Performance in Both Frequency Bands." Micromachines 12, no. 4 (2021): 383. http://dx.doi.org/10.3390/mi12040383.

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A compact four-element dual-band multiple-input and multiple-output (MIMO) antenna system is proposed to achieve high isolation and low channel capacity loss. The MIMO antenna was designed and optimized to cover the dual-frequency bands; the first frequency band is a wide band, and it covers the frequency range of 1550–2650 MHz, while the other frequency band covers the 3350–3650 MHz range. The measured wide-band impedance bandwidths of 1.1 GHz and 300 MHz were achieved in the lower and upper frequency bands, respectively. The proposed structure consists of four novel antenna elements, along w

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Dissertations / Theses on the topic "Antennas (Electronics) Code division multiple access"

1

Ng, Stewart Siew Loon. "Smart antenna in DS-CDMA mobile communication system using circular array /." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Mar%5FNg.pdf.

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Durrani, Salman. "Investigations into smart antennas for CDMA wireless systems /." [St. Lucia, Qld.], 2004. http://adt.library.uq.edu.au/public/adt-QU20041201.165143/index.html.

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Elfarawi, Shaaban M. "Indoor CDMA capacity using smart antenna base station." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0019/MQ54885.pdf.

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Yim, Raymond 1978. "New approaches to optical code-division multiple access." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=29551.

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This thesis focuses on new strategies of designing Optical Code-Division Multiple Access (OCDMA) networks. Specifically, two new spreading code families of 2-dimensional (2D) wavelength-time system are considered: Depth-First Search Codes (DFSC) and Balanced Codes for Differential Detection (BCDD). DFSC utilizes a depth-first search algorithm to generate unipodal codes with maximum unit auto- and cross-correlation properties that are suitable for direct detection. These codes have similar interference-limited bit error rate (BER) performance as most 2D wavelength-time codes, but the algorithm

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5

Zoualfaghari, Mohammad Hossein. "Co-channel interference reduction in Optical Code Division Multiple Access systems." Thesis, University of Birmingham, 2015. http://etheses.bham.ac.uk//id/eprint/5819/.

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In this thesis few new code sets and a multi-user interference (MUI) cancellation scheme have been proposed for Optical Code Division Multiple Access (OCDMA) systems, which can be employed in the next generation of global communication networks to enhance their existing systems’ performance dramatically. The initial evaluation of the proposed code sets shows that their implementation improves the performance, decreases the BER and increases security considerably. Also the proposed MUI cancellation scheme totally removes all the cross-talk and interference between the active users within the ne

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Parent, Marc-Antoine. "Third generation mobile communications : capacity of a time-division duplex code-division multiple access cellular system." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=29543.

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This thesis describes the work done in evaluating the capacity of a multi-service third generation (3G) wireless communication system based on the Universal Mobile Telecommunication System (UNITS). More specifically, the study presented in these pages examines the Time Division Duplex (TDD) paradigm supported by the 3G Partnership Project (3GPP).<br>The goal is to establish the probability that a new connection attempt be successful as a function of the instantaneous load on the network. The sought capacity is evaluated with the help of an analytical model and a simulation tool. Both tools use

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Chen, Yejian [Verfasser]. "Data Transmission in Wideband Code Division Multiple Access (WDMA/FDD) Systems with Multiple Transmit Antennas / Yejian Chen." Aachen : Shaker, 2007. http://d-nb.info/1166510980/34.

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Song, Yongjun. "Parity bit selected spreading sequences for spread spectrum and code division multiple access systems." Thesis, University of Ottawa (Canada), 2006. http://hdl.handle.net/10393/27180.

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Systematic block codes compute (n-k) parity bits for an information block of k bits, and append the parity bits to the end of the information bits to form an n-bit codeword. This redundancy provides certain ability for the receiver to detect or correct a limited number of errors caused by noise and interference on the channel. In direct sequence spread spectrum (DS-SS) communication systems, the information is spread over a large bandwidth by multiplying the information bits with a high rate pseudonoise (PN) sequence. In this thesis, these two techniques are combined to create a new technique,

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9

Zhang, Yifeng. "Wavelet packet based multicarrier modulation code division multiple access system." Ohio : Ohio University, 2000. http://www.ohiolink.edu/etd/view.cgi?ohiou1179861748.

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Krishnamurthy, Prashant Venkatanarayana. "A combined frequency, code and time division multiple-access technique for broadband indoor wireless communications." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=24062.

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Commutation signalling is an antimultipath technique employing direct-sequence bandwidth spreading for combatting multipath induced ISI. We propose a CDMA-like multiple-access scheme which utilizes this inherent spreading for broadband cellular indoor wireless communications. The intra-cell multiple-access is by time division while the inter-cell interference is reduced via combined frequency and code division. The frequency bands of adjacent cells overlap to increase bandwidth efficiency. We consider the interference between spread-spectrum signals with partially overlapping spectra and apply

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Books on the topic "Antennas (Electronics) Code division multiple access"

1

Multiuser detection. Cambridge University Press, 1998.

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2

Rooyen, Pieter Van. Space-time processing for CDMA mobile communications. Kluwer Academic Publishers, 2000.

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1945-, Brodersen Robert W., ed. Low-power CMOS wireless communications: A wideband CDMA system design. Kluwer Academic Publishers, 1998.

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1938-, Garg Vijay Kumar, Nassar Carl R, Shattil Steve J, Society of Photo-optical Instrumentation Engineers., and Colorado Photonics Industry Association, eds. Enabling technologies for 3G and beyond: 22-23 August 2001, Denver, USA. SPIE, 2001.

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5

Liberti, Joseph, and Theodore S. Rappaport. Smart Antennas for Wireless Communications: Is-95 and Third Generation Cdma Applications. Prentice Hall PTR, 1999.

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Smart Antennas for Wireless Communications: Is-95 and Third Generation Cdma Applications. Prentice Hall PTR, 1999.

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7

Rooyen, Pieter van, Michiel P. Lötter, and Danie van Wyk. Space-Time Processing for CDMA Mobile Communications (THE KLUWER INTERNATIONAL SERIES IN ENGINEERING AND) (The Springer International Series in Engineering and Computer Science). Springer, 2000.

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Rooyen, Pieter Van. Space-Time Processing for Cdma Mobile Communications. Springer, 2010.

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Brodersen, Robert W., and Samuel Sheng. Low-Power CMOS Wireless Communications A Wideband CDMA System Design. Springer, 1997.

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Book chapters on the topic "Antennas (Electronics) Code division multiple access"

1

Siringi, Navya, and Gurjit Kaur. "Performance evaluation of two-dimensional cyclic shift coding technique for Optical Code Division Multiple Access System." In Recent Trends in Communication and Electronics. CRC Press, 2021. http://dx.doi.org/10.1201/9781003193838-48.

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2

Durrani, Salman, and Marek E. Bialkowski. "Smart Antennas for Code Division Multiple Access Systems." In Handbook on Advancements in Smart Antenna Technologies for Wireless Networks. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-59904-988-5.ch017.

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This chapter discusses the use of smart antennas in Code Division Multiple Access (CDMA) systems. First, we give a brief overview of smart antenna classification and techniques and describe the issues that are important to consider when applying these techniques in CDMA systems. These include system architecture, array antennas, channel models, transmitter and receiver strategies, beamforming algorithms, and hybrid (beamforming and diversity) approach. Next, we discuss modeling of smart antennas systems. We present an analytical model providing rapid and accurate assessment of the performance of CDMA systems employing a smart antenna. Next, we discuss a simulation strategy for an adaptive beamforming system. A comparison between the analytical results and the simulation results is performed followed by a suitable discussion.

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Conference papers on the topic "Antennas (Electronics) Code division multiple access"

1

Weiner, A. M., C. C. Chang, and H. P. Sardesai. "Femtosecond Optical Code-Division Multiple-Access." In Ultrafast Electronics and Optoelectronics. OSA, 1997. http://dx.doi.org/10.1364/ueo.1997.ub4.

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2

Caihua, Yin, Zheng Yu, Ma Dawei, Jin Chengjiang, and Wang Jian. "Investigation of the transform domain code division multiple access." In 2011 International Conference on Consumer Electronics, Communications and Networks (CECNet). IEEE, 2011. http://dx.doi.org/10.1109/cecnet.2011.5768178.

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3

Berrahma, F., K. Ghanem, M. Nedil, and H. Bousbia-salah. "A Novel Multi-user Spatial Modulation-based Code Division Multiple Access Scheme." In 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting. IEEE, 2019. http://dx.doi.org/10.1109/apusncursinrsm.2019.8889308.

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4

Sarin, Akshay, and Al-Thaddeus Avestruz. "Active Segregated Inductor for Code Division Multiple Access Wireless Power Transfer." In 2019 20th Workshop on Control and Modeling for Power Electronics (COMPEL). IEEE, 2019. http://dx.doi.org/10.1109/compel.2019.8769692.

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Jian-Guo Zhang, Sharma, and Kwong. "New Optical Atm Switching Networks Using Code-division Multiple Access For Broadband Communication Applications." In 1998 International Conference on Consumer Electronics. IEEE, 1998. http://dx.doi.org/10.1109/icce.1998.678391.

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6

Wulich, Dov, Ron Dabora, and Gill R. Tsouri. "On increasing spectral efficiency of frequency division multiple access using synchronized superposition-modulation." In 2009 IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems - COMCAS. IEEE, 2009. http://dx.doi.org/10.1109/comcas.2009.5385995.

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