博碩士論文 102523007 詳細資訊




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姓名 王礪志(Li-Chih Wang)  查詢紙本館藏   畢業系所 通訊工程學系
論文名稱 感知無線電異質網路下以不完美頻譜偵測進行資源配置之探討
(Cognitive Radio Resource Allocation for Heterogeneous Network with Imperfect Spectrum Sensing)
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摘要(中) 本篇論文探討在下鏈(Downlink)異質網路(Heterogeneous Network)系統之下,如何利用能量偵測法(Energy detection)搭配頻譜偵測(Spectrum Sensing)以達成最大傳輸效率。在異質網路環境中,主要基地台(Primary base station)與次要基地台(Secondary base station)之間共用同個頻帶,因此在傳輸過程中會產生同頻帶之間的干擾(Co-channel Interference),這也是異質網路所面臨的一個重要問題。為了解決同頻帶之間的干擾,因此使用感知無線電(Cognitive Radio)的技術針對基地台之間傳輸時所產生的干擾問題進行優化與資源配置並達成傳輸效率的提升。
此論文探討次要使用者利用頻譜偵測技術及能量偵測法偵測異質網路主要使用者(Primary User)的使用情形,若當前頻段沒有主要使用者使用時,次要使用者(Secondary User)便可使用該頻段,否則需空出頻段給主要使用者。而頻譜偵測主要考慮兩種機率值,分別是正確偵測機率(Probability of Detection)值以及誤警報機率(Probability of False-alarm)值。正確偵測機率值越高或誤警報機率值越低,則次要使用者能夠占用頻帶的可能性就越高,也就更能利用頻帶,並利用偵測結果進行子載波配置以及利用拉格朗日乘數法進行功率配置。
此篇論文研究的感知無線電頻譜偵測搭配能量偵測技術,在模擬結果顯示出,相較於沒有考慮偵測機率的情形,更能增進次要使用者及總傳輸效率。
摘要(英) This thesis is about how to use spectrum sensing technology to improve the transmission capacity in downlink heterogeneous network systems. Heterogeneous network consists of primary and secondary base station. The major problem in heterogeneous network is the co-channel interference because it shares the same spectrum. Cognitive radio is the key technique to optimize the interference problem and allocate subcarriers and power among the base stations. The proposed scheme discusses that whether the spectrum is used by the primary user or not with the spectrum sensing technique. If the spectrum is detected to be idle, the secondary user can use the band. There are two main models of probability about spectrum sensing, probability of detection and probability of false-alarm. The higher detection probability or the lower false-alarm probability makes the secondary users to have more chances to occupy the spectrum. Based on the statement, using the sensing result to allocate the subcarrier, and using Lagrange multiplier method and Lagrange dual decomposition to allocate power lead to the simulation result reveals that the proposed scheme outperforms the other conditions which not consider the sensing probability.
關鍵字(中) ★ 感知無線電
★ 異質網路
★ 頻譜偵測
關鍵字(英) ★ Cognitive Radio
★ Heterogeneous
★ Spectrum Sensing
論文目次 中文摘要 i
Abstract iii
致謝 iv
Contents v
List of Figures vii
List of Tables viii
Chapter1. Introduction - 1 -
1.1. Cognitive Radio - 1 -
1.2. Spectrum Sensing - 3 -
1.3. Heterogeneous Network - 6 -
1.4. Review of Literature - 7 -
1.5. Abbreviations - 9 -
1.6. Organization - 10 -
Chapter2. System Model and Problem Formulation - 11 -
2.1. Heterogeneous Networks System Model - 11 -
2.2. Problem Formulation - 14 -
Chapter3. Spectrum Sensing and Resource Allocation - 16 -
3.1. Spectrum Sensing conditions - 16 -
3.2. Proposed Scheme - 18 -
3.2.1. Primary Network Resource Allocation - 18 -
3.2.2. Secondary Network Spectrum Sensing - 24 -
3.2.3. Secondary Network Capacity Improvement - 26 -
Chapter4. Simulation Results - 36 -
Chapter5. Conclusions - 42 -
Reference - 43 -
參考文獻 [1]Mitola, J., III, Maguire, G.Q., Jr., “Cognitive Radio: Making Software Radios More Personal”, IEEE Personal Communications, vol. 6, no. 4, pp.13-18, August, 1999.
[2]F. Peng, Y. Gao, Y. Chen, K. K. Chai, L. Cuthbert, “Using TV White Space for Interference Mitigation in LTE Femtocell Networks”, IEEE ICCTA , pp.5-9, Oct. 2011.
[3]W.-C. Chung, C.-J. Chang, and C.-C. Ye, “A Cognitive Priority-based Resource Management Scheme for Cognitive Femtocells in LTE Systems,” IEEE ICC, pp. 6220 – 6224, June . 2013.
[4]X. Fei, B. Bai, W. Chen, X. Guo, "Utilization of LTE-A Uplink Resource for Cognitive Radio Network via Matching and Quantizing," IEEE ICC. pp. 5336 - 5341, June. 2014.
[5]古孟霖,寬頻感知無線電及壓縮感知技術簡介, NCP Newsletter, No.36, pp. 14-19, February 2012.
[6]Y.-C. Liang, K.-C. Chen, G. Y. Li, and P. Mahonen, “Cognitive Radio Networking and Communications: An Overview,” IEEE Trans. on Vehic. Tech., vol. 60, no. 7, pp. 3386–3407, Sep. 2011.
[7]T. Yucek, and H. Arslan, “A Survey of Spectrum Sensing Algorithms for Cognitive Radio Applications,” IEEE Commun. Surveys and Tutorials., vol. 11, no. 1, pp. 116-130, FIRST QUARTER 2009.
[8]A. Nasser, A. Mansour, K. C. Yao, H. Charara, and M. Chaitou, “Efficient spectrum sensing approaches based on waveform detection,” IEEE ICeND., pp. 13 - 17, April-May. 2014.
[9]F. F. Digham, M. S. Alouini, and M. K. Simon, “On the Energy Detection of Unknown Signals over Fading Channels,” IEEE Trans. Commun., vol.55, no. 1, pp. 21-24, Jan. 2007.
[10]S. Kalambe, P. Lohiya, P. Malathi, “Performance Evoluation of Energy Detection Spectrum Sensing Technique Used In Cognitive radio,” IEEE Conference. Publications., pp.786-790, July 2014
[11]R. Tandra, and A. Sahai “Fundamental limits on detection in low SNR under noise uncertanty,” IEEE Wireless Networks, Communications and Mobile Computing, vol. 1, pp. 464-469, June. 2005.
[12]M. Ghozzi, F. Marx, M. Dohler, and J. Palicot, “Cyclostationarity based test for detection of vacant frequency bands,” IEEE Int. Conf. Cognitive Radio Oriented, Wireless Networks and Commun., Mykonos Island, Greece, June 2006.
[13]Md. Shipon Ali, "An Overview on Interference Management in 3GPP LTE-Advanced Heterogeneous Networks.," IJFGCN, vol. 8, no. 1, pp. 55-68, 2015.
[14]A. Khandekar, N. Bhushan, J. Tingfang, V. Vanghi, “LTE-Advanced Heterogeneous Networks,” IEEE Wireless Conference (EW), pp. 978-982, Apr. 2010.
[15]I. F. Akyildiz, D. M. Gutierrez-Estevez, and E. C. Reyes, “The evolution to 4G cellular systems: LTE-Advanced,” J. Physical Commun., vol. 3, pp. 217-244. 2010.
[16]S. Wang, Z. H. Zhou, M. Ge, C. Wang, “Resource Allocation for Heterogeneous Cognitive Radio Networks With Imperfect Spectrum Sensing,” IEEE Journal, vol. 31, no. 3, pp. 464-475, Mar. 2013.
[17]C.Shi, Y.Wang, P. Zhang, “Joint Spectrum Sensing and Resource Allocation for Multi-band Cognitive Radio Systems with Heterogeneous Services,” IEEE GLOBECOM, pp. 1180-1185, Dec. 2012.
[18]I. Harjula, and A. Hekkala, "Spectrum Sensing in Cognitive Femto Base Stations Using Welch Priodogram," in Proc. IEEE PIMRC, pp.2305-2309, Sept. 2011.
[19]D. Oh, H. Lee, and Y. Lee, “Cognitive Radio Based Femtocell Resource Allocation,” in Proc. IEEE ICTC, pp. 274–279, Nov. 2010.
[20]H. Zhang, C. Jiang, and X. Mao, and H. H. Chen “Interference Limited Resource Optimization in Cognitive Femtocells with Fairness and Imperfect Spectrum Sensing,” IEEE VTC, vol. PP, pp. 1, Feb. 2015.
[21]S. E. Mahmoodi, S. B. Kordan, B. Abolhassani, “A New Algorithm for Joint Sensing and Power Allocation in Multiuser Cognitive Radio Networks,” IEEE WPMC, pp. 1-5, Oct. 2011.
[22]S. M. Almalfouh, and G. L. Stuber, “Interference Aware Radio Resource Allocation in OFDMA Based Cognitive Radio Networks,” IEEE Trans. Vehicular Technology, vol. 60, no. 4, pp. 1699-1713, May. 2011.
[23]S. Althunibat, and F. Granelli, “On The Reduction of Power Loss Caused by Imperfect Spectrum Sensing in OFDMA-Based Cognitive Radio Access,” IEEE GLOCOM, pp. 3383-3387, Dec. 2012.
[24]X. Tan, H. Zhang, J. Hu, “Capacity maximisation of the secondary link in cognitive radio networks with hybrid spectrum access strategy.," IEEE Commun. IET, vol. 8, issue 5, pp. 689-696, Mar. 2014.
[25]Y. Ofuji, A. Morimoto, and S. Abeta, and M. Sawahashi, “Comparison of Packet Scheduling Algorithm Focusing on User Throughput in High Speed Downlink Packet Access,” IEEE PIMRC, vol. 3, pp. 1462-1466, Sept. 2002.
[26]A. Falahati and E. Hosseini, “An Iterative Resource Allocation Algorithm for Multi-user OFDM-CR System with Low Complexity,” IEEE IST, pp. 725-728, Sept. 2014.
[27]W. C. Pao, Y. F. Chen, M. G. Tsai, W. T. Lou and Y. J. Chang, “A Multiuser Subcarrier and Power Allocation Scheme in Localized SC-FDMA Systems,” IEEE PIMRC, pp. 210-214, Sept.2012.
指導教授 陳永芳(Yung-Fang Chen) 審核日期 2015-7-22
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