跳到主要內容

臺灣博碩士論文加值系統

(34.236.36.94) 您好!臺灣時間:2021/07/24 22:37
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

: 
twitterline
研究生:林志峰
研究生(外文):Chih-FengLin
論文名稱:在合作式無線網路中受限於干擾源的中繼點選擇協定之研究
論文名稱(外文):Relay Selection Protocol in Interference-LimitedCooperative Wireless Networks
指導教授:劉光浩
指導教授(外文):Kuang-Hau Liu
學位類別:碩士
校院名稱:國立成功大學
系所名稱:電腦與通信工程研究所
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:2012
畢業學年度:100
語文別:英文
論文頁數:76
中文關鍵詞:合作式通訊多樣性分集中繼點選擇同頻干擾瑞利衰減通道
外文關鍵詞:cooperative communicationdiversityrelay selectionco-channel interferencesRayleigh fading channel
相關次數:
  • 被引用被引用:0
  • 點閱點閱:148
  • 評分評分:
  • 下載下載:34
  • 收藏至我的研究室書目清單書目收藏:0
在合作式通訊中,為了達到多樣性增益,中繼點選擇機扮演了非常重要之角色。現有的文獻往往假設在理想的環境中去選擇中繼點,而忽略了同頻干擾的影響。然而對於忽略同頻干擾的中繼點選擇機制而言,無線網路可能遭受到同頻干擾而導致系統效能降低。在本論文中,系統模型為一個提供多目的端存取的來源端及中繼點群。根據干擾源的強度,提出兩種新的中繼點選擇機制並與傳統的最佳中繼點選擇機制比較。實驗中考慮兩種干擾情景。第一種情景為目的端受到干擾,第二種情景為中繼點和目的端皆受到干擾。並在瑞利衰減通道中,對於各個中繼點選擇機制計算中斷機率。最後,模擬驗證了分析的精確度,且經由與現有中繼點選擇機制比較後,證明了本篇論文所提出之方法非常適合於具有同頻干擾之環境。
For cooperative wireless networks, relay selection plays a principal role in the achievable diversity gain. Existing work commonly assumes an ideal condition where the effect of interference is ignored. However, wireless networks may be subject to the co-channel interferences (CCI) that can cause a severe performance degradation. In this thesis, the studied system model employs a single source that provides access to several destinations and exploits a group of relays. Two relay selection schemes are proposed according to the magnitude of interference, and they are compared with the traditional best relay selection. Two interfering scenarios are considered. In CASE I, the destination is interfered and in CASE II, both destination and relays are interfered. The exact outage probabilities for the proposed relay selection schemes are derived over the Rayleigh fading channels. Simulation results validate our analysis, and the comparisons with existing relay selection schemes are presented to identify the merits of our proposed schemes.
Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i
Certification of Passed Oral Examination . . . . . . . . . . . . . . . . ii
Chinese Abstract . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
English Abstract . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
List of Variables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
List of Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.1 Challenges and Problem Statement . . . . . . . . . . . . . . . . . . . . 1
1.2 Thesis Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2 Background and Literature Review . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Cooperative Relaying Techniques . . . . . . . . . . . . . . . . . . . . . 5
2.1.1 Amplify and Forward . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1.2 Decode and Forward . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.2 Combining Techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2.1 Receive Diversity Via Selection Combining . . . . . . . . . . . . 7
2.2.2 Receive Diversity Via Gain Combining . . . . . . . . . . . . . . 8
2.3 Single Relay Selection Schemes . . . . . . . . . . . . . . . . . . . . . . 10
2.4 Co-Channel Interference . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.5 Literature Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3 Cooperative Relay Selection in Interference-Limited Networks . . 14
3.1 System Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.2 Protocol Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2.1 Received Signal of CASE I . . . . . . . . . . . . . . . . . . . . . 17
3.2.2 Received Signal of CASE II . . . . . . . . . . . . . . . . . . . . 18
3.3 Relay Selection Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3.1 Best Relay Selection [1] . . . . . . . . . . . . . . . . . . . . . . . 19
3.3.2 Minimal Interference Relay Selection . . . . . . . . . . . . . . . 19
3.3.3 Hybrid Relay Selection . . . . . . . . . . . . . . . . . . . . . . . 20
3.4 Performance Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.4.1 Performance Analysis Of Best Relay Selection . . . . . . . . . . 20
3.4.2 Performance Analysis Of Minimal Interference Relay Selection . 23
4 Simulation Results and Discussions . . . . . . . . . . . . . . . . . . . 25
4.1 Theoretical and Simulated Outage Probability . . . . . . . . . . . . . 25
4.1.1 Impact of High Interference . . . . . . . . . . . . . . . . . . . . 25
4.1.2 Impact of Low Interference . . . . . . . . . . . . . . . . . . . . . 28
4.2 Comparisons of CASE I and CASE II . . . . . . . . . . . . . . . . . . . 30
4.3 Impact of Rely Position . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4 Simulation Results and Discussions . . . . . . . . . . . . . . . . . . . 25
4.1 Theoretical and Simulated Outage Probability . . . . . . . . . . . . . 25
4.1.1 Impact of High Interference . . . . . . . . . . . . . . . . . . . . 25
4.1.2 Impact of Low Interference . . . . . . . . . . . . . . . . . . . . . 28
4.2 Comparisons of CASE I and CASE II . . . . . . . . . . . . . . . . . . . 30
4.3 Impact of Rely Position . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5 Conclusion and Future Work . . . . . . . . . . . . . . . . . . . 35
5.1 Summary of Thesis Contribution . . . . . . . . . . . . . . . . . . . . . 35
5.2 Future Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
[1] A. Bletsas, H. Shin, and M. Z. Win, Outage optimality of opportunistic amplify-and-forward relaying, IEEE Commun. Lett, vol. 11, pp. 261-263, Mar. 2007.
[2] A. Agustin and J. Vidal, Amplify-and-forward cooperation under interference-limited spatial reuse of the relay slot, IEEE Trans. Wireless Commun., vol. 7, pp. 1952-1962, May 2008.
[3] I. Krikidis, J. S. Thompson, S. Mclaughlin, and N. Goertz, Max-min relay selection for legacy amplify-and-forward systems with interference, IEEE Trans.
Wireless Commun., vol. 8, pp. 3016-3027, June 2009.

[4] J.-B. Kim and D. Kim, Exact and closed-form outage probability of opportunistic decode-and-forward relaying with unequal-power interferers, IEEE Trans. Wireless Commun., vol. 9, no. 12, pp. 3601-3606, Dec. 2010.
[5] A. Bletsas, A. G. Dimitriou, and J. N. Sahalos, Interference-limited opportunistic relaying with reactive sensing, IEEE Trans. Wireless Commun., vol. 9, pp. 14-20, Jan. 2010.
[6] T. Rappaport et al., Wireless communications: principles and practice, Prentice Hall PTR New Jersey, 1996.
[7] A. Nosratinia, T. Hunter, and A. Hedayat, Cooperative communication in wireless networks, IEEE Commun. Mag., vol. 42, no. 10, pp. 74-80, Dec. 2004.
[8] D. N. C. Tse J. N. Laneman and G. W. Wornell, Cooperative diversity in wireless networks: E cient protocols and outage behavior, IEEE Transaction on
Information Theory., vol. 50, no. 12, pp. 3062-3080, Dec. 2004.
[9] M. Yu and J. Li, Is amplify-and-forward practically better than decode-and-forward or vice versa?, in Proc. IEEE Acoustics, Speech, and Signal Processing (ICASSP'05), 19-23 Mar. 2005.
[10] C. Oestges and B. Clerckx, MIMO Wireless communications, Academic Press, Inc, 2007.
[11] D. G. Brennan, Linear diversity combining techniques, Proceedings of the IEEE, vol. 91, no. 2, Feb. 2003.
[12] Y. Zhao, R. Adve, and T. J. Lim, Symbol error rate of selection amplify-and-forward relay systems, IEEE Commun. Lett., vol. 10, Nov. 2006.
[13] D. P. Reed A. Bletsas, A. Khisti and A. Lippman, A simple cooperative diversity method based on network path selection, IEEE J. Select. Areas Commun., vol. 24, pp. 659-672, Mar. 2006.
[14] V. Sreng, H. Yanikomeroglu, and D. D. Falconer, Relay selection strategies in cellular networks with peer-to-peer relaying, in Proc. IEEE Veh. Technol. Conf., Oct. 2003.
[15] A. Ribeiro, X. Cai, and G. B. Giannakis, Symbol error probabilities for general cooperative links, IEEE Trans. Wireless Commun., vol. 4, May 2005.
[16] J. B. Si, Z. Li, and Z. J. Liu, Threshold based relay selection protocol for wireless relay networks with interference, in Proc. ICC10, pp. 1-5, May 2010.
[17] J. B. Kim and D. Kim, Outage probability of opportunistic decodeand- forward relaying with co-channel interferences, in Proc. ICACT, 2009.
[18] D. Lee and J. H. Lee, Outage probability for opportunistic relaying on multicell environment, in Proc. IEEE Veh. Technol. Conf., May 2009.
[19] Q. Yang and K. S. Kwak, Outage performance of cooperative relaying with dissimilar nakagami-m interferers in nakagami-m fading, IET Commun., vol. 3, no. 7, pp. 1179-1185, 2009.
[20] J. Si, Z. Li, and Z. Liu, Outage probability of opportunistic relaying in rayleigh fading channels with multiple interferers, IEEE Signal Process. Lett., vol. 17, no. 5, pp. 445-448, 2010.
[21] 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, 2004.
[22] D. Lee and J. H. Lee, Outage probability for dual-hop relaying systems with multiple interferers over rayleigh fading channels, IEEE Trans. Veh. Technol., vol. 60, no. 1, pp. 333-338, 2011.
[23] P. Herath, U. Gunawardana, R. Liyanapathirana, and N. Rajatheva, Outage probability analysis of two-hop mimo relay networks with interference at the relay, in Communications Theory Workshop (AusCTW), Australian, pp. 89-93,Feb. 2011.
QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top
無相關期刊