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Artykuły w czasopismach na temat "Wireless cooperative retransmission"
Vien, Quoc-Tuan, Brian G. Stewart, Huaglory Tianfield i Huan X. Nguyen. "Cooperative Retransmission for Wireless Regenerative Multirelay Networks". IEEE Transactions on Vehicular Technology 62, nr 2 (luty 2013): 735–47. http://dx.doi.org/10.1109/tvt.2012.2224393.
Pełny tekst źródłaWang, Haiyong, Geng Yang, Yiran Gu, Jian Xu i Zhixin Sun. "A Novel Cooperative ARQ Method for Wireless Sensor Networks". International Journal of Distributed Sensor Networks 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/102326.
Pełny tekst źródłaChen, Dai Mei, Xi Hui Fan, Yu Mei Wang i Yue Du. "Cooperative Retransmission Based on Network Coding with Fourier Matrix for Wireless Ad Hoc Networks". Applied Mechanics and Materials 462-463 (listopad 2013): 701–5. http://dx.doi.org/10.4028/www.scientific.net/amm.462-463.701.
Pełny tekst źródłaKhan, Faisal Raisham, i Dr Muhammad Khalil Shahid. "Truncated ARQ Based Cooperative Transmission Initialization". INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 13, nr 2 (16.04.2014): 4183–90. http://dx.doi.org/10.24297/ijct.v13i2.2901.
Pełny tekst źródłaNaddafzadeh-Shirazi, Ghasem, Peng-Yong Kong i Chen-Khong Tham. "Distributed Reinforcement Learning Frameworks for Cooperative Retransmission in Wireless Networks". IEEE Transactions on Vehicular Technology 59, nr 8 (październik 2010): 4157–62. http://dx.doi.org/10.1109/tvt.2010.2059055.
Pełny tekst źródłaZhou, Yongqiang, Qihao Wang, Zhenggang Song, Suoping Li i Nana Yang. "Modeling and Performance Analysis of ECS-HTCARQ Protocol in Interference Scenario". Journal of Electrical and Computer Engineering 2022 (7.09.2022): 1–13. http://dx.doi.org/10.1155/2022/7054024.
Pełny tekst źródłaYang, Fan, Yanglong Sun, Sai Zou i Xiongbiao Luo. "Repetition-Based Cooperative Broadcasting for Vehicular Ad Hoc Networks Under the Rayleigh Fading Channel". Applied Sciences 10, nr 1 (26.12.2019): 212. http://dx.doi.org/10.3390/app10010212.
Pełny tekst źródłaZhou, Yong-Qiang, Lei Dai i Suo-Ping Li. "Performance Analysis of Multiple Relays Cooperative Truncated Automatic Repeat Request in Wireless Sensor Networks". Sensor Letters 17, nr 9 (1.09.2019): 733–38. http://dx.doi.org/10.1166/sl.2019.4138.
Pełny tekst źródłaAlkhayyat, Ahmed, Ahmed A. Thabit, Fahad A. Al-Mayali i Qammer H. Abbasi. "WBSN in IoT Health-Based Application: Toward Delay and Energy Consumption Minimization". Journal of Sensors 2019 (8.05.2019): 1–14. http://dx.doi.org/10.1155/2019/2508452.
Pełny tekst źródłaZhou, Yongqiang, Huan Qian, Qihao Wang i Suoping Li. "Performance Modeling Analysis of D-MSMR-CARQ with Relay Selection in Wireless Sensor Networks". Security and Communication Networks 2021 (8.07.2021): 1–11. http://dx.doi.org/10.1155/2021/5533926.
Pełny tekst źródłaRozprawy doktorskie na temat "Wireless cooperative retransmission"
Hatefi, Atoosa. "Distributed Coding for Wireless Cooperative Networks". Thesis, Supélec, 2012. http://www.theses.fr/2012SUPL0015/document.
Pełny tekst źródłaWith the rapid growth of wireless technologies, devices and mobile applications, the quest of high throughput and ubiquitous connectivity in wireless communications increases rapidly as well. Relaying is undoubtedly a key concept to provide coverage extension and capacity increase in wireless networks. Network coding, which allows the intermediate nodes to share their computation capabilities in addition to their resource and their power, has grabbed a significant research attention since its inception in information theory. It has become an attractive candidate to bring promising performance improvement, especially in terms of throughput, in relay-based cellular networks. Substantial research efforts are currently focused on theoretical analysis, implementation and evaluation of network coding from a physical layer perspective. The question is, what is the most efficient and practical way to use network coding in wireless relay-based networks, and whether it is beneficial to exploit the broadcast and multiple-access properties of the wireless medium to perform network coding. It is in such a context, that this thesis proceeds. In the first part of the thesis, the problem of Joint Network-Channel Coding (JNCC) for a Multiple Access Relay Channel (MARC) is investigated in the presence of multiple access interferences and for both of the relay operating modes, namely, half-duplex and full-duplex. To this end, three new classes of MARC, referred to as Half-Duplex Semi-Orthogonal MARC (HD-SOMARC), Half-Duplex Non-Orthogonal MARC (HD-NOMARC), and Full-Duplex Non-Orthogonal MARC (FD-NOMARC) have been introduced and studied. The relaying function in all of the classes is based on a Selective Decode-and-Forward (SDF) strategy, which is individually implemented for each source, i.e, the relay forwards only a deterministic function of the error-free decoded messages. For each class, an information-theoretic analysis is conducted, and practical coding and decoding techniques are proposed. The proposed coding schemes, perform very close to the outage limit for both cases of HD-SOMARC and HD-NOMARC. Besides, in the case of HD-NOMARC, the optimal allocation of the transmission time to the relay is considered. It is also verified that exploiting multiple access interferences, either partially or totally, results in considerable gains for MARC compared to the existing interference-avoiding structures, even in the case of single receive antenna. In the second part of the thesis, the network model is extended by considering multiple relays which help multiple sources to communicate with a destination. A new class of Multiple Access Multiple Relay Channel (MAMRC), referred to as Half-Duplex Semi-Orthogonal MAMRC (HD-SOMAMRC) is then proposed and analyzed from both information theoretic and code design perspective. New practical JNCC schemes are proposed, in which binary channel coding and non binary network coding are combined, and they are shown to perform very close to the outage limit. Moreover, the optimal allocation of the transmission time to the sources and relays is considered. Finally, in the third part of the thesis, different ways of implementing cooperation, including practical relaying protocols are investigated for the half-duplex MARC with semi-orthogonal transmission protocol and in the case of JNCC. The hard SDF approach is compared with two Soft Decode and Forward (SoDF) relaying functions: one based on log a posterior probability ratios (LAPPRs) and the other based on Mean Square Error (MSE) estimate. It is then shown that SDF works well in most of the configurations and just in some extreme cases, soft relaying functions (based on LAPPR or MSE estimate) can slightly outperform the hard selective one
Xiong, Lixiang. "A Markov Chain Approach to IEEE 802.11WLAN Performance Analysis". Thesis, The University of Sydney, 2008. http://hdl.handle.net/2123/3679.
Pełny tekst źródłaXiong, Lixiang. "A Markov Chain Approach to IEEE 802.11WLAN Performance Analysis". University of Sydney, 2008. http://hdl.handle.net/2123/3679.
Pełny tekst źródłaWireless communication always attracts extensive research interest, as it is a core part of modern communication technology. During my PhD study, I have focused on two research areas of wireless communication: IEEE 802.11 network performance analysis, and wireless cooperative retransmission. The first part of this thesis focuses on IEEE 802.11 network performance analysis. Since IEEE 802.11 technology is the most popular wireless access technology, IEEE 802.11 network performance analysis is always an important research area. In this area, my work includes the development of three analytical models for various aspects of IEEE 802.11 network performance analysis. First, a two-dimensional Markov chain model is proposed for analysing the performance of IEEE 802.11e EDCA (Enhanced Distributed Channel Access). With this analytical model, the saturated throughput is obtained. Compared with the existing analytical models of EDCA, the proposed model includes more correct details of EDCA, and accordingly its results are more accurate. This better accuracy is also proved by the simulation study. Second, another two-dimensional Markov chain model is proposed for analysing the coexistence performance of IEEE 802.11 DCF (Distributed Coordination Function) and IEEE 802.11e EDCA wireless devices. The saturated throughput is obtained with the proposed analytical model. The simulation study verifies the proposed analytical model, and it shows that the channel access priority of DCF is similar to that of the best effort access category in EDCA in the coexistence environment. The final work in this area is a hierarchical Markov chain model for investigating the impact of data-rate switching on the performance of IEEE 802.11 DCF. With this analytical model,the saturated throughput can be obtained. The simulation study verifies the accuracy of the model and shows the impact of the data-rate switching under different network conditions. A series of threshold values for the channel condition as well as the number of stations are obtained to decide whether the data-rate switching should be active or not. The second part of this thesis focuses on wireless cooperative retransmission. In this thesis, two uncoordinated distributed wireless cooperative retransmission strategies for single-hop connection are presented. In the proposed strategies, each uncoordinated cooperative neighbour randomly decide whether it should transmit to help the frame delivery depending on some pre-calculated optimal transmission probabilities. In Strategy 1, the source only transmits once in the first slot, and only the neighbours are involved in the retransmission attempts in the subsequent slots. In Strategy 2, both the source and the neighbours participate in the retransmission attempts. Both strategies are first analysed with a simple memoryless channel model, and the results show the superior performance of Strategy 2. With the elementary results for the memoryless channel model, a more realistic two-state Markov fading channel model is used to investigate the performance of Strategy 2. The simulation study verifies the accuracy of our analysis and indicates the superior performance of Strategy 2 compared with the simple retransmission strategy and the traditional two-hop strategy.
Brante, Glauber Gomes de Oliveira. "Comunicação cooperativa usando retransmissão parcial codificada, HARQ tipo-I e códigos LDPC". Universidade Tecnológica Federal do Paraná, 2010. http://repositorio.utfpr.edu.br/jspui/handle/1/1339.
Pełny tekst źródłaNessa dissertação de mestrado apresentamos um novo método HARQ para sistemas de comunicação cooperativa, denominado Retransmissão Parcial Codificada (RPC). Esse método é baseado na retransmissão de apenas uma fração da palavra código original por parte dos nós cooperativos, aplicando a essa fração um ganho de potência apropriado. Os resultados numéricos utilizando códigos LDPC e HARQ Tipo-I com Chase Combining mostram que o RPC supera os esquemas HARQ cooperativos tradicionais considerando os protocolos AAF e SDF. Além disso, mostramos que a vazão (throughput) do RPC, utilizando apenas um único relay, pode ser consideravelmente maior que a vazão de alguns métodos HARQ cooperativos que utilizam múltiplos relays.
In this master thesis we present a novel HARQ scheme for cooperative communication systems, called Coded Partial Retransmission (CPR). The method is based on the retransmission of only a fraction of the original codeword by the cooperating nodes, applying an appropriate power allocation. Numerical results using LDPC codes and Type-I HARQ with Chase Combining show that CPR outperforms regular cooperative HARQ techniques considering both AAF and SDF protocols. Additionally, we show that the CPR throughput, using a single relay, may be considerably larger than the throughput of some regular cooperative HARQ schemes using multiple relays.
Części książek na temat "Wireless cooperative retransmission"
Dianati, Mehrdad, Xuemin Sherman Shen i Kshirasagar Naik. "Cooperation Link Level Retransmission in Wireless Networks". W Cooperative Networking, 147–76. Chichester, UK: John Wiley & Sons, Ltd, 2011. http://dx.doi.org/10.1002/9781119973584.ch10.
Pełny tekst źródłaZhang, Qi, i Frank H. P. Fitzek. "Cooperative Retransmission for Reliable Wireless Multicast Services". W Cognitive Wireless Networks, 485–98. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-5979-7_25.
Pełny tekst źródłaChung, Yao-Liang, i Zsehong Tsai. "Introduction to the Retransmission Scheme Under Cooperative Diversity in Wireless Networks". W Wireless Communications and Networks - Recent Advances. InTech, 2012. http://dx.doi.org/10.5772/37385.
Pełny tekst źródłaBenaziz, Besma, Okba Kazar, Laid Kahloul, Ilham Kitouni i Samir Bourekkache. "Two-Level Data Collection for an Energy-Efficient Solution in Wireless Sensor Networks". W Cognitive Analytics, 194–213. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-2460-2.ch011.
Pełny tekst źródłaStreszczenia konferencji na temat "Wireless cooperative retransmission"
"PROBABILISTIC RETRANSMISSION STRATEGY FOR SINGLE-RELAY COOPERATIVE ARQ". W International Conference on Wireless Information Networks and Systems. SciTePress - Science and and Technology Publications, 2008. http://dx.doi.org/10.5220/0002024600210028.
Pełny tekst źródłaVien, Quoc-Tuan, Brian G. Stewart, Huaglory Tianfield i Huan X. Nguyen. "An efficient cooperative retransmission for wireless regenerative relay networks". W GLOBECOM 2012 - 2012 IEEE Global Communications Conference. IEEE, 2012. http://dx.doi.org/10.1109/glocom.2012.6503813.
Pełny tekst źródłaLi, Yun, Qing Huang i Wei Huang. "A cooperative retransmission strategy for error-prone wireless networks". W 2011 Eighth International Conference on Wireless and Optical Communications Networks - (WOCN). IEEE, 2011. http://dx.doi.org/10.1109/wocn.2011.5872934.
Pełny tekst źródłaZheng, Shoukang, i Peng-Yong Kong. "CCRex: A coding-aware cooperative retransmission for wireless networks". W 2010 IEEE International Conference on Communication Systems (ICCS). IEEE, 2010. http://dx.doi.org/10.1109/iccs.2010.5686484.
Pełny tekst źródłaLu, Kejie, Shengli Fu, Yi Qian i Hsiao-Hwa Chen. "Increasing the Throughput of Wireless LANs Via Cooperative Retransmission". W IEEE GLOBECOM 2007-2007 IEEE Global Telecommunications Conference. IEEE, 2007. http://dx.doi.org/10.1109/glocom.2007.992.
Pełny tekst źródłaXiong, Lixiang, Lavy Libman i Guoqiang Mao. "Optimal Strategies for Cooperative MAC-Layer Retransmission in Wireless Networks". W 2008 IEEE Wireless Communications and Networking Conference. IEEE, 2008. http://dx.doi.org/10.1109/wcnc.2008.268.
Pełny tekst źródłaNaddafzadeh Shirazi, Ghasem, Peng-Yong Kong i Chen-Khong Tham. "Markov Decision Process Frameworks for Cooperative Retransmission in Wireless Networks". W 2009 IEEE Wireless Communications and Networking Conference. IEEE, 2009. http://dx.doi.org/10.1109/wcnc.2009.4917801.
Pełny tekst źródłaXin He i Frank Y. Li. "An automatic cooperative retransmission MAC protocol in Wireless Local Area Networks". W 2009 European Wireless Conference (EW). IEEE, 2009. http://dx.doi.org/10.1109/ew.2009.5357992.
Pełny tekst źródłaHe, Xin, i Frank Y. Li. "An optimal energy efficient cooperative retransmission MAC scheme in wireless networks". W Electronic Systems Technology (Wireless VITAE). IEEE, 2011. http://dx.doi.org/10.1109/wirelessvitae.2011.5940871.
Pełny tekst źródłaXiong, Lixiang, Lavy Libman i Guoqiang Mao. "Distributed strategies for minimum-latency cooperative retransmission in wireless networks". W 2009 IEEE 34th Conference on Local Computer Networks (LCN 2009). IEEE, 2009. http://dx.doi.org/10.1109/lcn.2009.5355182.
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