(3.235.108.188) 您好!臺灣時間:2021/02/28 00:06
字體大小: 字級放大   字級縮小   預設字形  
回查詢結果

詳目顯示:::

我願授權國圖
: 
twitterline
研究生:蔡宗豪
研究生(外文):Tsung-hao Tsai
論文名稱:雙躍進合作式通訊網路之合作機制設計
論文名稱(外文):Selective Cooperation for Dual-Hop Cooperative Communication Networks
指導教授:李志鵬李志鵬引用關係
指導教授(外文):Chih-Peng Li
學位類別:碩士
校院名稱:國立中山大學
系所名稱:通訊工程研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2010
畢業學年度:98
語文別:英文
論文頁數:55
中文關鍵詞:合作的門檻解碼後傳送放大後傳送直接傳送
外文關鍵詞:cooperative thresholdsamplify-and-forwarddecode-and-forwarddirect transmission
相關次數:
  • 被引用被引用:0
  • 點閱點閱:121
  • 評分評分:系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔
  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0
在合作式網路通訊系統之中,不論是在多個中繼站中選擇最佳的一個來幫助傳送端傳送訊號、或是中繼站選擇是否幫助傳送端傳送訊號,現有的文獻所探討的系統,都是根據瞬間通道狀況來做判斷,但是這樣的方法會有很高的複雜度,尤其當通道劇烈改變時,系統沒有足夠的時間作出決定。
我們在此研究中提出了利用通道統計特性選擇直接傳送 (Direct Transmission,DT) 、放大後傳送(Amplify-and-Forward, AF) 或是解碼後傳送(Decode-and-Forward, DF) 的方式。在本論文之中,系統的效能分析是依據通道的平均容量,而不論中繼站使用放大後傳送(AF)還是解碼後傳送(DF),我們都利用了幾個不同的不等式化簡通道容量平均的理論值,並且求得選擇合作的門檻。
本論文也藉由電腦模擬來驗證理論推導的結果,由模擬圖分析可知使用合作門檻的傳送方式可以有效的選擇甚麼時候該使用合作式通訊。
In cooperative communications systems, multiple relays selection scheme and adaptive relay selection scheme are usually adopted. In both schemes, the system makes selections based on instantaneous channel status. However, such schemes have an extremely high computational complexity. In particular, when the channels experience fast fading, the systems do not have sufficient to make a correct decision.

In this thesis, statistical channel properties are utilized in deciding whether cooperative transmission should be adopted or not. In our investigations, the cooperative mechanism includes direct transmission (DT), decode-and-forward (DF) relaying and amplify-and-forward (AF) relaying. The Ergodic capacity is adopted throughout the theoretical analyses. In addition, a number of approximated thresholds are derived to assist the decision process.

Simulation experiments are conducted to verify the derived results. It is shown that the proposed transmission scheme using the cooperative thresholds is effective in deciding when the cooperative communication is necessary.
致謝…….................................................................................................................................... I
中文摘要.. ................................................................................................................................ II
Abstract…. .............................................................................................................................. III
Chapter 1 Introduction ............................................................................................................. 1
1.1 Introduction of Cooperative Network ......................................................................... 1
1.2 Introduction of Cooperative Transmission Protocols ................................................... 2
1.3 Literature Review.......................................................................................................... 3
Chapter 2 System Model ........................................................................................................ 10
2.1 Direct Transmission System ....................................................................................... 10
2.2 Conventional Single-Relay Cooperative System ........................................................ 11
2.2-1 Ergodic Capacity of Decode-and-Forward Relaying ..................................... 13
2.2-2 Ergodic Capacity of Amplify-and-Forward Relaying .................................... 16
Chapter 3 Approximate Threshold Functions for Selective Cooperation ......................... 19
3.1 Decode-and-Forward Relaying and Direct Transmission ........................................... 19
3.1-1 Approximation of Exponential Integral .......................................................... 19
3.1-2 Approximation by Jensen’s Inequality ........................................................... 21
3.2 Amplify-and-Forward Relaying and Direct Transmission ......................................... 22
3.2-1 Approximation of Exponential Integral .......................................................... 22
3.2-2 Approximation of Jensen’s Inequality ............................................................ 23
3.3 Hybrid Cooperative Protocol and Direct Transmission .............................................. 26
Chapter 4 Simulation Results ................................................................................................ 27
Chapter 5 Conclusions and Future Works ........................................................................... 40
5.1 Conclusions ................................................................................................................. 40
5.2 Future Works .............................................................................................................. 40
References ............................................................................................................................... 41
Abbreviations .......................................................................................................................... 45
[1] T. Cover and A. E. Gamal, “Capacity theorems for the relay channel,” IEEE Trans. Inf. Theory, vol. 25, no. 5, pp. 572-584, Sep. 1979.
[2] A. Sendonaris, E. Erkip, and B. Aazhang, “User cooperation diversity-part I: system description,” IEEE Trans. Commun., vol. 51, no. 11, pp. 1972-1938, Nov. 2003.
[3] A. Sendonaris, E. Erkip, and B. Aazhang, “User cooperation diversity-part II: implementation aspects and performance analysis,” IEEE Trans. Commun., vol. 51, no. 11, pp. 1939-1948, Nov. 2003.
[4] Y. Song, H. Shin, and E. K. Hong, “MIMO cooperative diversity with scalar-gain amplify-and-forward relaying,” IEEE Trans. Commun., vol. 57, no. 7, pp.1932-1938, Jul. 2009.
[5] W. Su and X. Liu, “On optimum selection relaying protocols in cooperative wireless networks,” IEEE Trans. Commun., vol. 58, no. 1, pp. 52-57, Jan. 2010.
[6] S. S. Ikki and M. H. Ahmed, “Performance analysis of adaptive decode-and-forward cooperative diversity networks with best-relay selection,” IEEE Trans. Commun., vol.58, no. 1, pp. 68-72, Jan. 2010.
[7] H. Mheidat and M. Uysal, “Impact of receive diversity on the performance of amplify-and-forward relaying under APS and IPS power constraints,” IEEE Communs. Lett., vol. 10, no. 6, pp. 468-470, Jun. 2006.
[8] J. Boyer, D. D. Falconer, and H. Yanikomeroglu, “Multihop diversity in wireless relaying channels,” IEEE Trans. Commun., vol. 52, no. 10, pp. 1820-1830, Oct. 2004.
[9] A. K. Sadek, W. Su, and K. J. R. Liu, “Multinode cooperative communications in wireless networks,” IEEE Trans. Signal Process., vol. 5, no. 1, pp. 341-355, Jan. 2007.
[10] S. S. Ikki, M. Uysal, and M. H. Ahmed, “Performance analysis of incremental-best-relay amplify-and-forward technique,” in Proc. IEEE Global Telecommunications Conference, Honolulu, HI, Nov. 2009.
[11] S. S. Ikki, M. Uysal, and M. H. Ahmed, “Performance analysis of incremental-relay-selection decode-and-forward technique,” in Proc. IEEE Global Telecommunications Conference, Honolulu, HI, Nov. 2009.
[12] J. N. Laneman, D. N. C. Tse, and G. W. Wornell, “Cooperative diversity in wireless networks: efficient protocols and outage behavior,” IEEE Trans. Inf. Theory, vol. 50, no. 12, pp. 3062-3080, Dec. 2004.
[13] R. U. Nabar, H. Bolcskei, and F. W. Kneubuhler, “Fading relay channels: performance limits and space–time signal design,” IEEE J. Sel. Areas Commun., vol. 22, no. 6, pp.
1099-1109, Aug. 2004.
[14] Y. Ding, K. J. Zhang, and K. M. Wong, “Ergodic channel capacities for the amplify-and-forward half-duplex cooperative systems,” IEEE Trans. Inf. Theory, vol. 55, no. 2, pp. 713-730, Feb. 2009.
[15] A. Bletsas, A. Khisti, D. P. Reed, and A. Lippman, “A simple cooperative diversity method based on network path selection," IEEE J. Sel. Areas Commun., vol. 24, no. 3, pp. 659-672, Mar. 2006.
[16] W. P. Siriwongpairat, T. Himsoon, S. Weifeng, and K. J. R. Liu, “Optimum threshold-selection relaying for decode-and-forward cooperation protocol,” in Proc. IEEE Wireless Communications and Networking Conference, Las Vegas, NV, Apr. 2006, vol. 2, pp. 1015-1020.
[17] L. Sun, T. Zhang, L. Lu, and H. Niu, “Cooperative communications with relay selection in wireless sensor networks," IEEE Trans. Consum. Electron., vol. 55, no. 2, pp.513-517, Apr. 2009.
[18] W. Choi, D. Kim, and B. H. Kim, “Adaptive multi-node incremental relaying for hybrid-ARQ in AF relay networks,” IEEE Trans. Wireless Commun., vol. 9, no. 2, pp. 505-511, Feb. 2010.
[19] I. Krikidis, J. Thompson, S. Mclaughlin, and N. Goertz, “Max-min relay selection for legacy amplify-and-forward systems with interference,” IEEE Trans. Wireless Commun., vol. 8, no. 6, pp. 3016-3027, Jun. 2009.
[20] A. Adinoyi, Y. Fan, H. Yanikomeroglu, H. V. Poor, and F. Al-Shaalan, “Performance of selection relaying and cooperative diversity,” IEEE Trans. Wireless Commun., vol. 8, no. 12, pp. 5790-5795, Dec. 2009.
[21] A. Bletsas, H. Shin, and M. Z. Win, ”Outage optimality of opportunistic amplify-and-forward relaying,” IEEE Communs. Lett., vol. 11, no. 3, pp. 261-263, Mar. 2007.
[22] A. S. Ibrahim, A. K. Sadek, S. Weifeng, and K. J. R. Liu, “Cooperative communications with relay-selection when to cooperate and whom to cooperate with,” IEEE Trans. Wireless Commun., vol. 7, no. 7, pp. 2814-2827, Jul. 2008.
[23] F. A. Onat, A. Adinoyi, Y. Fan, H. Yanikomeroglu, J. S. Thompson, and I. D. Marsland, “Threshold selection for SNR-based selective digital relaying in cooperative wireless networks,” IEEE Trans. Wireless Commun., vol. 7, no. 11, pp. 4226-4237, Nov. 2004.
[24] Bo Gui, Lin Dai, and L. J. Cimini, “Selective relaying in cooperative OFDM systems: two-hop random network,” in Proc. IEEE Wireless Communications Networking Conference, Las Vegas, NV, Apr. 2008, pp. 996-1001.
[25] IEEE 802.11n, Draft 4.0 - Wireless LAN Media Access Control and Physical Layer Specifications: Enhancements for Higher Throughput, Mar. 2008.
[26] D. G. Brennan, “Linear diversity combining techniques,” in Proc. IEEE, vol. 91, no. 2, pp. 331-356, Feb. 2003.
[27] M. S. Alouini and A. J. Goldsmith, “Capacity of Rayleigh fading channels under different adaptive transmission and diversity-combining techniques,” IEEE Trans. Veh. Technol., vol. 48, no. 4, pp. 1165-1181, Jul. 1999.
[28] I. S. Gradshteyn and I. M. Ryzhik, Table of Integrals, Series, and Products, 5th ed. San Diego, CA: Academic, 1994.
[29] L. C. Andrews, Special Functions of Mathematics for Engineers, 2nd ed. SPIE Press, 1998.
[30] Y. Han, S. H. Ting, and C. K. Ho, ” Moments of harmonic mean and rate analysis for two-way amplify-and-forward relaying,” in Proc. IEEE International Conference on
Communications Workshops, Beijing, May 2008, pp. 365-369.
[31] M. O. Hasna and M. S. Alouini, “Harmonic mean and end-to-end performance of transmission systems with relays,” IEEE Trans. Commun., vol. 52, no. 1, pp. 130-135, Jan. 2004.
[32] W. C. Choi, S. Kim, S. R. Jin, and D. J. Park, “Average approach to amplify-and-forward relay networks,” International Symposium on Communications and Information Technology 9th, pp. 1195-1196, Sept. 2009.
[33] S. Weifeng and L. Xin, “On optimum selection relaying protocols in cooperative wireless networks,” IEEE Trans. Commun., vol. 58, no. 1, pp. 52-57, Jan. 2010.
QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top
系統版面圖檔 系統版面圖檔