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研究生(外文):Chien-Chun Huang
論文名稱(外文):Integrating ABS and DRX Mechanisms in LTE-A Heterogeneous Networks
指導教授(外文):You-Chiun Wang
外文關鍵詞:quality of service (QoS)heterogeneous networksenhanced inter-cell interference coordination (eICIC)almost blank subframe (ABS)discontinuous reception (DRX)long term evolution-advanced (LTE-A)
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在LTE-A異質網路的架構下,為了有效解決細胞間彼此干擾的問題,第三代合作夥伴計劃(3rd Generation Partnership Project,簡稱3GPP)提出了「增強型細胞間干擾消除技術」(Enhanced inter-cell interference coordination,簡稱eICIC),並利用傳送近乎空白子訊框(Almost blank subframe,簡稱ABS),來解決macrocell基地台對於small cell訊號干擾的問題;另一方面,為了延長使用者設備(User equipment,簡稱UE)的電池續航力,3GPP也同時制定「非連續接收」(Discontinuous Reception,簡稱DRX)機制,該機制透過讓UE週期性地關閉射頻電路以便節省其能源消耗;然而,當macrocell基地台使用ABS時,由於不會傳送使用者資料給旗下的UE,而UE在睡眠模式時亦無法接收資料,也因此,倘若我們能在UE進入睡眠模式時順勢使用ABS,就能同時達到降低對small cell的干擾和UE省電的效果;基於上述的觀察,本論文將根據UE的通道狀況、資料產生速率,以及服務品質的需求,來動態調整DRX參數和ABS的使用時機,以減少UE的耗電量、降低GBR flow的封包遺失率,以及提升網路整體的吞吐量。
In order to solve the cell-interference problem in LTE-A heterogeneous networks, 3GPP proposes the technique of enhanced inter-cell interference coordination (eICIC). It uses almost blank subframes (ABSs) to alleviate signal interference by a macrocell eNB to small cells. In addition, 3GPP also proposes a discontinuous reception (DRX) mechanism to help extend battery lifetime of user equipments (UEs). It allows UE to turn off radio frequency circuit periodically to save energy consumption. However, during an ABS, the macrocell eNB doesn’t send user data to UEs. Besides, UEs cannot receive data in the sleeping mode. Therefore, if we allow UEs to enter the sleeping mode during ABSs, not only the interference problem is alleviated but also UEs can save more energy. Based on the above observation, the objectives of this thesis are to reduce energy consumption, decrease packet loss rate of guaranteed bit rate (GBR) flows, and improve overall throughput by considering channel condition, data rate, and quality of service (QoS) requirements of UEs adaptively to adjust the DRX parameters and the ABS mechanism.
論文審定書 i
致謝 ii
摘要 iii
Abstract iv
目錄 v
圖次 vii
表次 viii
一、 導論 1
1.1 前言 1
1.2 研究動機 3
1.3 論文貢獻與章節架構 4
二、 LTE-A技術介紹 5
2.1 LTE-A頻譜資源與服務品質分級 5
2.2 增強型細胞間干擾消除技術 10
2.3 非連續接收機制 11
三、 問題定義與相關研究 13
3.1 網路架構與問題定義 13
3.2 相關文獻探討 14
四、 研究方法 17
4.1 步驟一:求出CQI、 Long DRX cycle與ABS cycle 20
4.2 步驟二:計算UE的flow需要多少個PRB 21
4.3 步驟三:計算UE預計分配到的PRB與ABS使用數量 23
4.4 步驟四:決定On duration timer與DRX offset 26
4.5 演算法設計原由 28
五、 模擬結果與分析 30
5.1 能源消耗比較 34
5.2 吞吐量比較 36
5.2.1 系統整體吞吐量 36
5.2.2 Macrocell吞吐量 38
5.2.3 Picocell吞吐量 40
5.3 能源效率比較 42
5.4 GBR flow封包遺失率比較 44
5.4.1 系統封包遺失率 44
5.4.2 Macrocell封包遺失率 46
5.4.3 Picocell封包遺失率 48
5.5 不同場景之比較 50
5.5.1 系統能源消耗 50
5.5.2 系統吞吐量 51
5.5.3 系統能源效率 53
5.5.4 系統GBR flow封包遺失率 54
六、 結論與未來展望 56
參考文獻 57
[1]ITU-R, “Requirements Related to Technical Performance for IMT-Advanced Radio Interface(s),” Technical Report M.2134, 2008. [Online]. Available: http://www.itu.int/pub/R-REP-M.2134.
[2]S. Kanchi, S. Sandilya, D. Bhosale, A. Pitkar and M. Gondhalekar, “Overview of LTE-A technology,” IEEE Global High Tech Congress on Electronics, pp. 195-200, 2013.
[3]G. Yuan, X. Zhang, W. Wang and Y. Yang, “Carrier aggregation for LTE-advanced mobile communication systems,” IEEE Communications Magazine, vol. 48, no. 2, pp. 88-93, 2010.
[4]Q. Li, G. Li, W. Lee, M. Lee, D. Mazzarese, B. Clerckx and Z. Li, “MIMO techniques in WiMAX and LTE: a feature overview,” IEEE Communications Magazine, vol. 48, no.5, pp. 86-92, 2010.
[5]Y. C. Wang and C. A. Chuang, “Efficient eNB deployment strategy for heterogeneous cells in 4G LTE systems,” Computer Networks, vol. 79, no. 14, pp. 297-312, 2015.
[6]D. Lopez-Perez, I. Guvenc, G. de la Roche, M. Kountouris, T. Q. S. Quek and J. Zhang, “Enhanced intercell interference coordination challenges in heterogeneous networks,” IEEE Wireless Communications, vol. 18, no. 3, pp. 22-30, 2011.
[7]A. Damnjanovic, J. Montojo, Y. Wei, T. Ji, T. Luo, M. Vajapeyam, T. Yoo, O. Song and D. Malladi, “A survey on 3GPP heterogeneous network,” IEEE Wireless Communications, vol. 18, no. 3, pp. 10-21, 2011.
[8]C. S. Bontu and E. Illidge, “DRX mechanism for power saving in LTE,” IEEE Communications Magazine, vol. 47, no. 6, pp. 48-55, 2009.
[9]European Telecommunications Standards Institute, “3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Medium Access Control (MAC) protocol specification (Release 13),” 3GPP TS 36.321 V13.4.0, 2016.
[10]European Telecommunications Standards Institute, “3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Physical layer procedures (Release 13),” 3GPP TS 36.213 V13.3.0, 2016.
[11]European Telecommunications Standards Institute, “3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Policy and charging control architecture (Release 13),” 3GPP TS 23.203 V13.10.0, 2016.
[12]European Telecommunications Standards Institute, “3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Radio Resource Control (RRC); Protocol specification (Release 13),” 3GPP TS 36.331 V13.3.0, 2016.
[13]L. Liu, X. She and L. Chen, “Multi-user and channel dependent scheduling based adaptive power saving for LTE and beyond system,” Asia-Pacific Conference on Communications, pp. 118-122, 2010.
[14]S. Gao, H. Tian, J. Zhu and L. Chen, “A more power-efficient adaptive discontinuous reception mechanism in LTE,” IEEE Vehicular Technology Conference, pp. 1-5, 2011.
[15]S. C. Jha, A. T. Koc and R. Vannithamby, “Optimization of discontinuous reception (DRX) for mobile Internet applications over LTE,” IEEE Vehicular Technology Conference, pp. 1-5, 2012.
[16]Y. P. Yu and K. T. Feng, “Traffic-based DRX cycles adjustment scheme for 3GPP LTE systems,” IEEE Vehicular Technology Conference, pp. 1-5, 2012.

[17]S. V. R, K. M. Sivalingam, L. P. Tung and Y. D. Lin, “Dynamic DRX algorithms for reduced energy consumption and delay in LTE networks,” IFIP Wireless Days, pp. 1-8, 2014.
[18]J. M. Liang, J. J. Chen, H. H. Cheng and Y. C. Tseng, “An energy-efficient sleep scheduling with QoS consideration in 3GPP LTE-advanced networks for internet of things,” IEEE Journal on Emerging and Selected Topics in Circuits and Systems, vol. 3, no. 1, pp. 13-22, 2013.
[19]L. P. Tung, Y. D. Lin, Y. H. Ku, Y. C. Lai and K, M. Sivalingam, “Reducing power consumption in LTE data scheduling with the constraints of channel condition and QoS,” International Conference on Computing, Networking and Communications, pp. 731-735, 2014.
[20]J. Pang, J. Wang, D. Wang, G. Shen, Q. Jiang and J. Liu “Optimized time-domain resource partitioning for enhanced inter-cell interference coordination in heterogeneous networks,” IEEE Wireless Communications and Networking Conference, pp.1613-1617, 2012.
[21]S. N. S. Kshatriya, S. Kaimalettu, S. R. Yerrapareddy, K. Milleth and N. Akhtar, “On interference management based on subframe blanking in heterogeneous LTE networks,” International Conference on Communication Systems and Networks, pp.1-7, 2013.
[22]S. Vasudevan, R. N. Pupala and K, Sivanesan “Dynamic eICIC — A proactive strategy for improving spectral efficiencies of heterogeneous LTE cellular networks by leveraging user mobility and traffic dynamics,” IEEE Transactions on Wireless Communications, vol. 12, no. 10, pp. 4956-4969, 2013.
[23]Z. Liu and Y. Ji, “Intercell interference coordination under data rate requirement constraint in LTE-advanced heterogeneous networks,” IEEE Vehicular Technology Conference, pp.1-5, 2014.
[24]A. Daeinabi, K. Sandrasegaran and P. Ghosal, “An enhanced intercell interference coordination scheme using fuzzy logic controller in LTE-advanced heterogeneous networks,” International Symposium on Wireless Personal Multimedia Communications, pp. 520-525, 2014.
[25]R. Xue, M. Zhang, H. Yu, H. Luo and X. Gan “Dynamic time-domain resource allocation in heterogeneous small cell networks based on bursty traffic,” IEEE/CIC International Conference on Communications in China, pp. 621-626, 2014.
[26]A. Argyriou, D. Kosmanos and L. Tassiulas “Joint time-domain resource partitioning, rate allocation, and video quality adaptation in heterogeneous cellular networks,” IEEE Transactions on Multimedia, vol. 17, no. 5, pp. 736-745, 2015.
[27]Y. C. Wang and S. T. Chen, “Delay-aware ABS adjustment to support QoS for real-time traffic in LTE-A HetNet,” IEEE Wireless Communications Letters, 2017.
[28]J. Huilin, W. Hao, Z. Wenxiang, L. Zhihang, P. Zhiwen, L. Nan, Y. Xiaohu and Y. Li, “Carrier aggregation based interference coordination for LTE-A macro-pico HetNet,” IEEE Vehicular Technology Conference, pp. 1-6, 2013.
[29]R. Giuliano and F. Mazzenga, “Exponential effective SINR approximations for OFDM/OFDMA-based cellular system planning,” IEEE Transactions on Wireless Communications, vol. 8, no. 9, pp. 4434-4439, 2009.
[30]G. Piro, L. A. Grieco, G. Boggia, F. Capozzi and P. Camarda, “Simulating LTE cellular systems: an open-source framework,” IEEE Transactions on Vehicular Technology, vol. 60, no. 2, pp. 498-513, 2011.
[31]3GPP TSG-RAN, “DRX parameters in LTE,” Technical Report R2-071285, 2007. [Online]. Available: http://www.3gpp.org/DynaReport/TDocExMtg--R2-57b--26245.htm.
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