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A novel adaptive modulation scheme in cooperative communication systems
|關鍵字:||Cooperative communications;合作式通訊系統;Adaptive modulation;Decode-and-Forward;適應性調變;解碼前送式||出版社:||電機工程學系所||引用:||. A. Nosratinia, T. Hunter, and A. Hedayat, “Cooperative communication in wireless networks,” IEEE Commun. Mag., vol. 42, no. 10, pp. 74 -80, Oct. 2004. . M. Abrar, X. Gui, A. Punchihewa, S. Khan, and M. Iqbal, “Cooperative diversity versus antenna diversity in wireless communication systems,” in Prof. International Conference on New Trends in Information Science and Service Science (NISS), May 2010, pp. 260 -263. . S. Zummo, “Performance analysis of coded cooperation diversity in wireless networks,” in Prof. IEEE International Conference on Communications (ICC), vol. 10, June 2006, pp. 4560 -4565. . A. Svensson, “An introduction to adaptive qam modulation schemes for known and predicted channels,” Proc. IEEE, vol. 95, no. 12, pp. 2322 -2336, Dec. 2007. . Y. Jing and H. Jafarkhani, “Single and multiple relay selection schemes and their achievable diversity orders,” IEEE Trans. Wireless Communications, vol. 8, no. 3, pp. 1414 -1423, March 2009. . Z. Yi and I.-M. Kim, “Decode-and-forward cooperative networks with relay selection,” in Prof. IEEE Vehicular Technology Conference, VTC Fall, Oct. 2007, pp. 1167 -1171. . Z. Fang, X. Zhou, X. Bao, and Z. Wang, “Outage minimized relay selection with partial channel information,” in Prof. IEEE International Conference on Acoustics Speech and Signal Processing (ICASSP), April 2009, pp. 2617 -2620. . S. Nam, M. Vu, and V. Tarokh, “Relay selection methods for wireless cooperative communications,” in Prof. Conference on Information Sciences and Systems (CISS), March 2008, pp. 859 -864. . S. Ikki and M. Ahmed, “Performance analysis of incremental relaying cooperative diversity networks over rayleigh fading channels,” in Prof. IEEE Wireless Communications and Networking Conference (WCNC), April 2008, pp. 1311 -1315. . M. Torabi and D. Haccoun, “Capacity analysis of opportunistic relaying in cooperative systems with outdated channel information,” IEEE Commun. Lett., vol. PP, no. 99, pp. 1 -3, Nov. 2010. . S.-Y. Lee, C.-C. Chang, and M.-K. Chang, “Modeling of df behavior and snr evaluation for multinode cooperation system with adaptive modulation under diﬀerent diversity combining strategies,” in Prof. International Symposium on Information Theory and its Applications (ISITA), Oct. 2010, pp. 169 -173. . M. Torabi and D. Haccoun, “Performance analysis of cooperative diversity systems with opportunistic relaying and adaptive transmission,” IET Communications, vol. 5, no. 3, pp. 264 -273, Nov. 2011. . K. Hwang, Y. Ko, and M. Alouini, “Performance analysis of incremental opportunistic relaying over identically and non-identically distributed cooperative paths,” IEEE Trans. Wireless Communications, vol. 8, no. 4, pp. 1953 -1961, April 2009. . J. Kwon, Y. Ko, and H. Yang, “Maximum spectral eﬃciency of amplify-and-forward cooperative transmission with multiple relays,” IEEE Trans. Wireless Communications, vol. 10, no. 1, pp. 49 -54, January 2011. . E. Altubaishi and X. Shen, “A generalized switching policy for incremental relaying with adaptive modulation,” in Prof. IEEE International Conference on Communications (ICC), May 2010, pp. 1 -5. . ——, “Variable-rate based relay selection scheme for decode-and-forward cooperative networks,” in Prof. IEEE Wireless Communications and Networking Conference (WCNC), March 2011, pp. 1887 -1891. . A. Bastami and A. Olfat, “Selection relaying schemes for cooperative wireless networks with adaptive modulation,” IEEE Trans. Veh. Technol., vol. 60, no. 4, pp. 1539 -1558, May 2011. . P. Kalansuriya, M. Soysa, and C. Tellambura, “Performance of a coopera-tive network using rate adaptation and cooperative combining,” in Prof. IEEE Wireless Communications and Networking Conference (WCNC), April 2010, pp. 1 -6. . T. Nechiporenko, P. Kalansuriya, and C. Tellambura, “Performance of optimum switching adaptive m -qam for amplify-and-forward relays,” IEEE Trans. Veh. Technol., vol. 58, no. 5, pp. 2258 -2268, Jun. 2009. . Y. Ma, R. Tafazolli, Y. Zhang, and C. Qian, “Adaptive modulation for oppor-tunistic decode-and-forward relaying,” IEEE Trans. Wireless Communications, vol. PP, no. 99, pp. 1 -6, July 2011. . Y. Luo and L. Cai, “Throughput maximization for user cooperative wireless systems with adaptive modulation,” in Prof. IEEE International Conference on Communications (ICC), May 2010, pp. 1 -5. . K. Kamath and D. Goeckel, “Adaptive-modulation schemes for minimum outage probability in wireless systems,” IEEE Trans. Communications, vol. 52, no. 10, pp. 1632 - 1635, Oct. 2004. . W. Su, A. Sadek, and K. Liu, “Ser performance analysis and optimum power allocation for decode-and-forward cooperation protocol in wireless networks,” in Proc. IEEE Wireless Communications and Networking Conference (WCNC), vol. 2, March 2005, pp. 984 - 989 Vol. 2.||摘要:||
Cooperative communication has became popular research recently. Since the mobile users can help sending the information each other in cooperative communication system, it can achieve cooperative diversity similar to the multiple-input multiple output (MIMO) system and overcome some limitation of MIMO systems. Furthermore, the cooperative communication with adaptive modulation (AM) can improve the system performance. The adaptive modulation can increase the data throughput and satisfy the required error rate. In general, we use thresholds to decide the transmission rate. However, the fixed thresholds cause ine ciency of the system performance. Therefore, a novel adaptive modulation method is proposed in this thesis. We can improve the performance intensely by changing the thresholds and modulation scheme of each average signal to noise rate (SNR). This method can be compared to fixed thresholds and verify that our proposed method is better than fixed threshold. We also compare our method to optimum thresholds and the results prove complexity of our proposed method is lower than optimum thresholds.
|Appears in Collections:||電機工程學系所|
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