Academic literature on the topic 'Cooperative diversity'
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Journal articles on the topic "Cooperative diversity"
Sasongko, Adrian Tri, Yeti Lis Purnamadewi, and Sri Mulatsih. "ANALISIS KEUNGGULAN KOMPARATIF DAN FAKTOR YANG MEMPENGARUHI KINERJA KOPERASI DI PULAU JAWA." JURNAL EKONOMI DAN KEBIJAKAN PEMBANGUNAN 6, no. 2 (July 31, 2018): 90–106. http://dx.doi.org/10.29244/jekp.6.2.2017.90-106.
Full textSasongko, Adrian Tri, Yeti Lis Purnamadewi, and Sri Mulatsih. "ANALISIS KEUNGGULAN KOMPARATIF DAN FAKTOR YANG MEMPENGARUHI KINERJA KOPERASI DI PULAU JAWA." JURNAL EKONOMI DAN KEBIJAKAN PEMBANGUNAN 6, no. 2 (July 31, 2018): 90–106. http://dx.doi.org/10.29244/jekp.6.2.90-106.
Full textShuangqing Wei, D. L. Goeckel, and M. C. Valenti. "Asynchronous cooperative diversity." IEEE Transactions on Wireless Communications 5, no. 6 (June 2006): 1547–57. http://dx.doi.org/10.1109/twc.2006.1638675.
Full textJu, MinChul, Il-Min Kim, and Dong In Kim. "Opportunistic Source/Destination Cooperation in Cooperative Diversity Networks." IEEE Transactions on Wireless Communications 9, no. 12 (December 2010): 3822–37. http://dx.doi.org/10.1109/twc.2010.100110.100307.
Full textSun, Xiao Jin, and Zhi Wen Hu. "Research on Wireless Communication Technology Based on Cooperative Diversity." Applied Mechanics and Materials 416-417 (September 2013): 1561–64. http://dx.doi.org/10.4028/www.scientific.net/amm.416-417.1561.
Full textShea, John M., Tan F. Wong, and Wing-Hin Wong. "Cooperative-diversity slotted ALOHA." Wireless Networks 13, no. 3 (July 3, 2006): 361–69. http://dx.doi.org/10.1007/s11276-006-7531-0.
Full textJi, Wei, and Bao-yu Zheng. "Enhanced cooperative packet retransmission employing joint cooperative diversity and symbol mapping diversity." Journal of Zhejiang University-SCIENCE A 9, no. 8 (August 2008): 1090–98. http://dx.doi.org/10.1631/jzus.a0720076.
Full textCalle, Félix, Ángela González-Moreno, Inmaculada Carrasco, and Manuel Vargas-Vargas. "Social Economy, Environmental Proactivity, Eco-Innovation and Performance in the Spanish Wine Sector." Sustainability 12, no. 15 (July 22, 2020): 5908. http://dx.doi.org/10.3390/su12155908.
Full textMahmood, A. "Cooperative Diversity in Wireless Networks." Journal of Engineering Science and Technology Review 3, no. 1 (June 2010): 184–87. http://dx.doi.org/10.25103/jestr.031.30.
Full textHost-Madsen, A. "Capacity bounds for Cooperative diversity." IEEE Transactions on Information Theory 52, no. 4 (April 2006): 1522–44. http://dx.doi.org/10.1109/tit.2006.871576.
Full textDissertations / Theses on the topic "Cooperative diversity"
Guerrero, Laura Yadira. "Cooperative diversity for distributed multicarrier relaying systems." Thesis, King's College London (University of London), 2017. https://kclpure.kcl.ac.uk/portal/en/theses/cooperative-diversity-for-distributed-multicarrier-relaying-systems(773aaeec-11e4-43b7-a1ff-cd3a86644a52).html.
Full textMoço, Andreia Vieira. "Cooperative diversity schemes for wireless communication systems." Master's thesis, Universidade de Aveiro, 2008. http://hdl.handle.net/10773/2055.
Full textA presente dissertação insere-se na área das comunicações sem fios, ou mais especificamente na temática da diversidade cooperativa. Neste trabalho é feito o estudo, implementação e avaliação do desempenho de esquemas de diversidade cooperativa de baixa complexidade para sistemas de comunicação móvel. Estes esquemas são mapeados em modelos de simulação baseados em OFDMA e são completamente simulados em CoCentric System Studio. Os resultados obtidos com os modelos desenvolvidos mostram que os esquemas de diversidade cooperativa atenuam os efeitos do desvanecimento induzido pela propagação multipercurso, aumentando desta forma a capacidade e cobertura dos sistemas wireless. Os ganhos são particularmente altos quando as perdas de percurso são consideráveis, como é o caso das zonas urbanas densas. ABSTRACT: This dissertation is inserted into the wireless communication, or more specifically, into the cooperative diversity field. within this thesis, the performance of low-complexity cooperative diversity schemes projected for mobile communication systems are studied, implemented and evaluated. These schemes are mapped into simulation models based on OFDMA and are fully simulated in the CoCentric System Studio environment. The obtained results show that the proposed cooperative schemes for the uplink communication mitigate fading induced by multipath propagation, thereby increasing the capacity and coverage of wireless systems. Cooperation gains are particularly high when multipath losses are considerable, as is the case for dense urban regions.
Teodoro, Sara Helena Marques. "Distributed coding for systems with cooperative diversity." Doctoral thesis, Universidade de Aveiro, 2011. http://hdl.handle.net/10773/6045.
Full textO presente trabalho propõe-se a divulgar as mais significativas técnicas de esquemas cooperativos, de forma a ultrapassar alguns dos problemas dos sistemas móveis sem fios da próxima geração, estendendo a área de cobertura destes sistemas, assim como a sua capacidade e fiabilidade. O estudo de diversos esquemas cooperativos é efetuado em termos de capacidade e de taxa de erros, fazendo variar o número de relays e de antenas em cada elemento do sistema. Diversos algoritmos com aplicação em sistemas cooperativos são desenvolvidos e propostos ao longo desta tese, como códigos espaço-frequência aplicados de forma distribuída nos relays, para sistemas baseados na tecnologia OFDM e sob diversos cenários próximos da realidade. Os sistemas cooperativos são particularmente úteis em situações em que o caminho direto entre dois terminais não está acessível ou tem uma fraca qualidade de transmissão. Tendo este aspeto em consideração, e pretendendo ter a máxima eficiência espetral e máxima diversidade, um algoritmo com precodificação é também proposto para múltiplos relays, cada um equipado com uma ou duas antenas. A formulação matemática associada aos algoritmos propostos é apresentada, assim como a derivação da probabilidade de erro teórica. O desempenho dos sistemas assistidos por relays usando os algoritmos propostos é comparado em relação a outros esquemas cooperativos equivalentes e a esquemas não-cooperativos, considerando cenários com diferentes qualidades de canal, daí advindo importantes conclusões em relação a estes sistemas.
Cooperative schemes are promising solutions for cellular wireless networks aiming to improve system fairness, extend coverage and increase capacity. Measurements of these system performances are made in terms of BER and capacity for different configurations, by varying the number of relays and of antennas equipping each node. In this work we propose and evaluate distributed space-frequency codes applied to cooperative systems in a distributed way, with application in OFDM systems and considering realistic scenarios. Moreover, the use of relays is of significant interest to allow radio access in situations where a direct path is not available or has poor quality. Thus, a data precoded relay-assisted scheme is also proposed for a system cooperating with multiple relays, each equipped with either a single antenna or two-antenna array. Mathematical formulation of the proposed algorithms is derived as well as the pairwise error probability. We further present the performances of the proposed algorithms apllied in relay-assisted schemes, and compare them with equivalent cooperative and non-cooperative schemes, for several channel quality scenarios, through which important conclusions are achieved.
FCT/FSE
Laneman, J. Nicholas. "Cooperative diversity in wireless networks : algorithms and architectures." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/29272.
Full textIncludes bibliographical references (p. 179-187).
To effectively combat multipath fading across multiple protocol layers in wireless networks, this dissertation develops energy-efficient algorithms that employ certain kinds of cooperation among terminals, and illustrates how one might incorporate these algorithms into various network architectures. In these techniques, sets of terminals relay signals for each other to create a virtual antenna array, trading off the costs-in power, bandwidth, and complexity-for the greater benefits gained by exploiting spatial diversity in the channel. By contrast, classical network architectures only employ point-to-point transmission and thus forego these benefits. After summarizing a model for the wireless channel, we present various practical cooperative diversity algorithms based upon different types of relay processing and re-encoding, both with and without limited feedback from the ultimate receivers. Using information theoretic tools, we show that all these algorithms can achieve full spatial diversity, as if each terminal had as many transmit antennas as the entire set of cooperating terminals. Such diversity gains translate into greatly improved robustness to fading for the same transmit power, or substantially reduced transmit power for the same level of performance. For example, with two cooperating terminals, power savings as much as 12 dB (a factor of sixteen) are possible for outage probabilities around one in a thousand. Finally, we discuss how the required level of complexity in the terminals makes different algorithms suitable for particular network architectures that arise in, for example, current cellular and ad-hoc networks.
by J. Nicholas Laneman.
Ph.D.
Bletsas, Aggelos Anastasiou 1975. "Intelligent antenna sharing in cooperative diversity wireless networks." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/33876.
Full textIncludes bibliographical references (p. 143-152).
Cooperative diversity has been recently proposed as a way to form virtual antenna arrays that provide dramatic gains in slow fading wireless environments. However, most of the proposed solutions require simultaneous relay transmissions at the same frequency bands, using distributed space-time coding algorithms. Careful design of distributed space-time coding for the relay channel is usually based on global knowledge of some network parameters or is usually left for future investigation, if there is more than one cooperative relay. We propose a novel scheme that eliminates the need for space-time coding and provides diversity gains on the order of the number of relays in the network. Our scheme first selects the best relay from a set of M available relays and then uses this "best" relay for cooperation between the source and the destination. Information theoretic analysis of outage probability shows that our scheme achieves the same diversity-multiplexing gain tradeoff as achieved by more complex protocols, where coordination and distributed space-time coding for M relay nodes is required. Additionally, the proposed scheme increases the outage and ergodic capacity, compared to non-cooperative communication with increasing number of participating relays, at the low SNR regime and under a total transmission power constraint.
(cont.) Coordination among the participating relays is based on a novel timing protocol that exploits local measurements of the instantaneous channel conditions. The method is distributed and allows for fast selection of the best relay as compared to the channel coherence time. In addition, a methodology to evaluate relay selection performance for any kind of wireless channel statistics is provided. Other methods of network coordination, inspired by natural phenomena of decentralized time synchronization, are analyzed in theory and implemented in practice. It was possible to implement the proposed, virtual antenna formation technique in a custom network of single antenna, half-duplex radios.
by Aggelos Anastasiou Bletsas.
Ph.D.
Jardine, Allan. "Cooperative diversity in wireless networks : frameworks and analysis." Thesis, University of Edinburgh, 2007. http://hdl.handle.net/1842/12284.
Full textVien, Quoc-Tuan. "Cooperative diversity techniques for high-throughput wireless relay networks." Thesis, Glasgow Caledonian University, 2013. http://eprints.mdx.ac.uk/11685/.
Full textNeves, Darlene Maciel. "Channel estimation and parameters acquisition systems employing cooperative diversity." Doctoral thesis, Universidade de Aveiro, 2013. http://hdl.handle.net/10773/11963.
Full textThis work investigates new channel estimation schemes for the forthcoming and future generation of cellular systems for which cooperative techniques are regarded. The studied cooperative systems are designed to re-transmit the received information to the user terminal via the relay nodes, in order to make use of benefits such as high throughput, fairness in access and extra coverage. The cooperative scenarios rely on OFDM-based systems employing classical and pilot-based channel estimators, which were originally designed to pointto-point links. The analytical studies consider two relaying protocols, namely, the Amplifyand-Forward and the Equalise-and-Forward, both for the downlink case. The relaying channels statistics show that such channels entail specific characteristics that comply to a proper filter and equalisation designs. Therefore, adjustments in the estimation process are needed in order to obtain the relay channel estimates, refine these initial estimates via iterative processing and obtain others system parameters that are required in the equalisation. The system performance is evaluated considering standardised specifications and the International Telecommunication Union multipath channel models.
Este trabalho tem por objetivo o estudo de novos esquemas de estimação de canal para sistemas de comunicação móvel das próximas gerações, para os quais técnicas cooperativa são consideradas. Os sistemas cooperativos investigados neste trabalho estão projetados para fazerem uso de terminais adicionais a fim de retransmitir a informação recebida para o utilizador final. Desta forma, pode-se usurfruir de benefícios relacionados às comunicações cooperativas tais como o aumento do rendimento do sistema, fiabilidade e extra cobertura. Os cenários são basedos em sistemas OFDM que empregam estimadores de canal que fazem uso de sinais piloto e que originalmente foram projetados para ligações ponto a ponto. Os estudos analíticos consideram dois protocolos de encaminhamento, nomeadamente, Amplify-and-Forward e Equalise-and-Forward, ambos para o caso downlink. As estatísticas dos canais em estudo mostram que tais canais ocasionam características específicas para as quais o filtro do estimador e a equalisação devem ser apropridamente projetados. Estas características requerem ajustes que são necessários no processo de estimação a fim de estimar os canais, refinar as estimativas iniciais através de processos iterativos e ainda obter outros parâmetros do sistema que são necessários na equalização. O desempenho dos esquemas propostos são avaliados tendo em consideração especificações padronizadas e modelos de canal descritos na International Telecommunication Union.
Perera, Ovitigalage Prasad Nalaka. "Cooperative diversity for performance enhancement of vehicular ad hoc networks." Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/87980/1/Ovitigalage%20Prasad%20Nalaka_Perera_Thesis.pdf.
Full textNi, Min. "Cooperative Distributed Transmission and Reception." Digital WPI, 2013. https://digitalcommons.wpi.edu/etd-dissertations/325.
Full textBooks on the topic "Cooperative diversity"
W, Putnam JoAnne, ed. Cooperative learning and strategies for inclusion: Celebrating diversity in the classroom. Baltimore: Paul H. Brookes Pub. Co., 1993.
Find full textBento, Maria Aparecida Silva, and Marilda Castelar. Inclusão no trabalho: Desafios e perspectivas. São Paulo, SP, Brasil: CEERT, 2001.
Find full textStefanelli, Renzo. Il capitale ben temperato: Diversità coop e vitalità del mercato. Roma: Liocorno, 1994.
Find full textSchülke, Alexander. Biodiversity in German development cooperation. 7th ed. Heidelberg: Kasparek, 2008.
Find full textSchülke, Alexander. Biodiversity in German development cooperation. 7th ed. Heidelberg: Kasparek, 2008.
Find full textCo.Ind: Un successo costruito sulla diversità. Bologna: Il Mulino, 2001.
Find full textSchermers, Henry G. International institutional law: Unity within diversity. 5th ed. Boston: Martinus Nijhoff Publishers, 2011.
Find full textJ, Soeters, and Manigart Philippe, eds. Military cooperation in multinational peace operations: Managing cultural diversity and crisis response. London: Routledge, 2008.
Find full textChaturvedi, Sachin. A framework of cooperation in conservation of biodiversity in South Asia: Profile of issues and challenges. New Delhi: Research and Information System for the Non-aligned and Other Developing Countries, 2001.
Find full textSchermers, Henry G. International institutional law: Unity within diversity. 3rd ed. The Hague: M. Nijhoff, 1995.
Find full textBook chapters on the topic "Cooperative diversity"
Atapattu, Saman, Chintha Tellambura, and Hai Jiang. "Diversity Techniques and Cooperative Networks." In Energy Detection for Spectrum Sensing in Cognitive Radio, 63–83. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4939-0494-5_5.
Full textPescarmona, Isabella. "Giving Voice to Diversity." In Contemporary Global Perspectives on Cooperative Learning, 71–81. New York: Routledge, 2023. http://dx.doi.org/10.4324/9781003268192-8.
Full textFeldman, Robert. "Contributing to a cooperative workplace/diversity." In Professionalism and Values in Law Practice, 89–92. Milton Park, Abingdon, Oxon; New York, NY:: Routledge, 2020. http://dx.doi.org/10.4324/9780429244704-19.
Full textAyadi, Rym. "Banks’ Business Models in Europe: Are Cooperative Banks Different?" In Institutional Diversity in Banking, 51–72. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42073-8_3.
Full textPintea, C. M., C. Chira, and D. Dumitrescu. "Sensitive Ants: Inducing Diversity in the Colony." In Nature Inspired Cooperative Strategies for Optimization (NICSO 2008), 15–24. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-03211-0_2.
Full textIsmail, Adiel, and Andries P. Engelbrecht. "Measuring Diversity in the Cooperative Particle Swarm Optimizer." In Lecture Notes in Computer Science, 97–108. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-32650-9_9.
Full textRahmati, Alireza, and Alagan Anpalagan. "Maximum Multipath Diversity in Coded Cooperative Relay Networks." In 30th Biennial Symposium on Communications 2021, 263–72. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-06947-5_20.
Full textAkinsoyinu, Clements A. "Cooperative Banks: Is Demutualization an Answer? The Experience of Building Societies in the UK." In Institutional Diversity in Banking, 73–100. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42073-8_4.
Full textKil, Krzysztof, and Ewa Miklaszewska. "The Competitive Threats and Strategic Challenges to Polish Cooperative Banks: A Post Crisis Perspective." In Institutional Diversity in Banking, 121–46. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42073-8_6.
Full textJoshi, Aparna, and Susan E. Jackson. "Managing Workforce Diversity to Enhance Cooperation in Organizations." In International Handbook of Organizational Teamwork and Cooperative Working, 277–96. Chichester, UK: John Wiley & Sons Ltd, 2008. http://dx.doi.org/10.1002/9780470696712.ch14.
Full textConference papers on the topic "Cooperative diversity"
Deng, Weihua, and Xiqi Gao. "Cooperative Diversity with Partially Cooperative Relays." In 2009 5th International Conference on Wireless Communications, Networking and Mobile Computing (WiCOM). IEEE, 2009. http://dx.doi.org/10.1109/wicom.2009.5303125.
Full textJi, Wei, Bao-yu Zheng, and Cui Jing-wu. "Joint cooperation diversity and symbol mapping diversity in cooperative communication systems." In 2007 5th International Conference on Communications, Circuits and Systems. IEEE, 2007. http://dx.doi.org/10.1109/icccas.2007.6247575.
Full textKandasamy, Durga M., Kristal Curtis, Armando Fox, and David Patterson. "Diversity within the crowd." In CSCW '12: Computer Supported Cooperative Work. New York, NY, USA: ACM, 2012. http://dx.doi.org/10.1145/2141512.2141556.
Full textHamilton, B. R., and X. Ma. "Noncooperative Routing with Cooperative Diversity." In 2007 IEEE International Conference on Communications. IEEE, 2007. http://dx.doi.org/10.1109/icc.2007.699.
Full textBletsas, A., Hyundong Shin, M. Z. Win, and A. Lippman. "Cooperative diversity with opportunistic relaying." In IEEE Wireless Communications and Networking Conference, 2006. WCNC 2006. IEEE, 2006. http://dx.doi.org/10.1109/wcnc.2006.1683612.
Full textOruc, Ozgur, and Umit Aygolu. "Cooperative Diversity with Coordinate Interleaving." In 2007 IEEE 15th Signal Processing and Communications Applications. IEEE, 2007. http://dx.doi.org/10.1109/siu.2007.4298839.
Full textDehnie, Sintayehu, and Nasir Memon. "Cooperative diversity with selfish users." In 2008 42nd Annual Conference on Information Sciences and Systems (CISS). IEEE, 2008. http://dx.doi.org/10.1109/ciss.2008.4558698.
Full textMeier, A. "Cooperative diversity in wireless networks." In 6th IEE International Conference on 3G and Beyond (05/11182). IEE, 2005. http://dx.doi.org/10.1049/cp:20050189.
Full textKarumur, Raghav Pavan, Tien T. Nguyen, and Joseph A. Konstan. "Early Activity Diversity." In CSCW '16: Computer Supported Cooperative Work and Social Computing. New York, NY, USA: ACM, 2016. http://dx.doi.org/10.1145/2818048.2820009.
Full textDong, Wei, Kate Ehrlich, Michael M. Macy, and Michael Muller. "Embracing Cultural Diversity." In CSCW '16: Computer Supported Cooperative Work and Social Computing. New York, NY, USA: ACM, 2016. http://dx.doi.org/10.1145/2818048.2835198.
Full textReports on the topic "Cooperative diversity"
Shakya, B., E. Sharma, J. Gurung, and N. Chettri. The Landscape Approach in Biodiversity Conservation; A Regional Cooperation Framework for Implementation of the Convention on Biological Diversity in the Kangchenjunga Landscape. Kathmandu, Nepal: International Centre for Integrated Mountain Development (ICIMOD), 2007. http://dx.doi.org/10.53055/icimod.479.
Full textShakya, B., E. Sharma, J. Gurung, and N. Chettri. The Landscape Approach in Biodiversity Conservation; A Regional Cooperation Framework for Implementation of the Convention on Biological Diversity in the Kangchenjunga Landscape. Kathmandu, Nepal: International Centre for Integrated Mountain Development (ICIMOD), 2007. http://dx.doi.org/10.53055/icimod.479.
Full textKeinan, Ehud. The 18th Asian Chemical Congress and the 20th General Assembly of the FACS. AsiaChem Magazine, November 2020. http://dx.doi.org/10.51167/acm00015.
Full textMaletta, Giovanna, and Mike Lewis. Post-shipment On-site Inspections and Stockpile Management Assistance: Bridging Gaps. Stockholm International Peace Research Institute, August 2022. http://dx.doi.org/10.55163/ulfp1679.
Full textTerrón-Caro, María Teresa, Rocio Cárdenas-Rodríguez, Fabiola Ortega-de-Mora, Kassia Aleksic, Sofia Bergano, Patience Biligha, Tiziana Chiappelli, et al. Policy Recommendations ebook. Migrations, Gender and Inclusion from an International Perspective. Voices of Immigrant Women, July 2022. http://dx.doi.org/10.46661/rio.20220727_1.
Full textJones, Natalie, Miquel Muñoz Cabré, Georgia Piggot, and Michael Lazarus. Tapping the potential of NDCs and LT-LEDS to address fossil fuel production. Stockholm Environment Institute, June 2021. http://dx.doi.org/10.51414/sei2021.010.
Full textKibler, Amanda, René Pyatt, Jason Greenberg Motamedi, and Ozen Guven. Key Competencies in Linguistically and Culturally Sustaining Mentoring and Instruction for Clinically-based Grow-Your-Own Teacher Education Programs. Oregon State University, May 2021. http://dx.doi.org/10.5399/osu/1147.
Full textLunsgaarde, Erik, Kevin Adams, Kendra Dupuy, Adis Dzebo, Mikkel Funder, Adam Fejerskov, Zoha Shawoo, and Jakob Skovgaard. The politics of climate finance coordination. Stockholm Environment Institute, October 2021. http://dx.doi.org/10.51414/sei2021.022.
Full textMelanie, Haupt, and Hellweg Stefanie. Synthesis of the NRP 70 joint project “Waste management to support the energy turnaround (wastEturn)”. Swiss National Science Foundation (SNSF), January 2020. http://dx.doi.org/10.46446/publication_nrp70_nrp71.2020.2.en.
Full textAccelerating Digital Payments in Latin America and the Caribbean. Inter-American Development Bank, May 2022. http://dx.doi.org/10.18235/0004256.
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