在此論文中，將提出可調適非連續接收的架構，其能根據目前的流量類型及剩餘的電量動態地調整DRX參數。我們發展分析性模組利用傳統以及動態的DRX機制分析省電性能，並且依據發展中的分析模組設計動態的DRX架構。在運行時，每個用戶設備（UE）的最佳DRX參數，可以利用簡單的查表方式，不需要花太多時間，而得到最佳參數。最後我們進行模擬來比較我們所提出的動態DRX與傳統DRX架構下之性能。其結果顯示，我們所提出的方法能夠根據當下的流量類型和剩餘電量，有效地改進使用者感知的QoS以及節能效能，因而強化整體的LTE性能。

In the paper we present a novel adaptive multicycle Discontinuous Reception (DRX) scheme which dynamically adjusts the DRX parameters according to the base station’s perceived traffic intensity and specific Quality of service (QoS) for Long Term Evolution (LTE) networks. It is a table-driven method which off-line pre-establishes the table of the optimal DRX parameters based on a theoretical analysis approach. At runtime, the DRX parameters of each user equipment (UE) can be determined optimally with a simple table lookup rapidly without spending much computational time. We conducted simulations to compare the performance of our proposed multi-cycle DRX scheme with that of the conventional DRX scheme. The results demonstrate that our approach can effectively improve both the user-perceived service quality and power saving efficiency according to the current traffic intensity and QoS requirements, and thus enhances the overall system performances.

[1] Moray Rumney BSc, C. Eng, MIET,"3GPP LTE: Introducing Single-Carrier
FDMA,"Agilent Measurement Journal, Issue 4, pp.18-27, January 2008

[2] Amitava Ghosh, Rapeepat Ratasuk, Bishwarup Mondal, Nitin Mangalvedhe, and
Tim Thomas, “LTE-Advanced: Next-Generation Wireless Broadband
Technology,” in IEEE Wireless Communications, vol. 17, no. 3, pp. 10-22, June
2010.

[3] http ://www.conniq.com/WiMAX/tdd-fdd.htm (2011/06/03)

[4] 3GPP , TS 36.300 V10.1.0 Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolves Universal Terrestrial Radio Access Network (E-UTRAN);Overall description ; Stage 2 (Release 10).

[5] 3GPP , TS 36.321 V10.2.0 Evolved Universal Terrestrial Radio Access (E-UTRA) ; Medium Access Control (MAC) protocol specification (Release 10).

[6] Huang Bo, Tian Hui, Chen Lan, and Zhu Jianchi "DRX-Aware Scheduling Method for Delay-Sensitive Traffic, " IEEE COMMUNICATIONS LETTERS, VOL. 14, NO. 12, DECEMBER 2010.

[7] S. Shenker, “Fundamental design issues for the future internet,” IEEE Journal on Selected Areas in Communication, Vol. 13, No. 7, Sept. 1995, pp. 1176 - 1188.

[8] S. Sesia, I. Toufik, and M. Baker, LTE-The UMTS Long Term Evolution:
From Theory to Practice. Wiley, 2009.

[9] 3GPP R1-120056, “Analysis on traffic model and characteristics for
MTC and text proposal,” Huawei, HiSilicon.

[10] S.-R. Yang and Y-B. Lin, “Modeling UMTS discontinuous reception
mechanism,” IEEE Trans. Wireless Commun., vol. 4, no. 1, pp. 312–
319, Jan. 2005.

[11] S.-R. Yang, S.-Y. Yan, and H.-N. Hung, “Modeling UMTS power saving
with bursty packet data traffic,” IEEE Trans. Mobile Comput., vol. 6,
no. 12, pp. 1398–1408, Dec. 2007.

[12] 3GPP R1-114439, “Text proposal for traffic model/characteristics for
MTC,” Vadafone Group.

[13] C. S. Bontu and E. Illidge, “DRX Mechanism for Power Saving in LTE,” IEEE
Communications Magazine, June 2009.

[14] S-R. Yang et al., “Modeling UMTS Power Saving with Bursty Packet Data
Traffic,” IEEE Trans. Mobile Comp., Vol. 6, No. 12, Dec. 2007, pp. 1398–
1409.

[15] S-R. Yang et al., “Modeling UMTS Power Saving with Bursty Packet Data
Traffic,” IEEE Trans. Mobile Comp., Vol. 6, No. 12, Dec. 2007, pp. 1398– 1409.

[16] S-R. Yang et al., “Modeling UMTS Power Saving with Bursty Packet Data
Traffic,” IEEE Trans. Mobile Comp., Vol. 6, No. 12, Dec. 2007, pp. 1398– 1409.

[17] S-R. Yang et al., “Modeling UMTS Power Saving with Bursty Packet Data
Traffic,” IEEE Trans. Mobile Comp., Vol. 6, No. 12, Dec. 2007, pp. 1398– 1409.
[18] S-R. Yang et al., “Modeling UMTS Power Saving with Bursty Packet Data
Traffic,” IEEE Trans. Mobile Comp., Vol. 6, No. 12, Dec. 2007, pp. 1398– 1409.

[19] Amitava Ghosh, Rapeepat Ratasuk, Bishwarup Mondal, Nitin Mangalvedhe, and Tim Thomas, “LTE-Advanced: Next-Generation Wireless Broadband
Technology,” in IEEE Wireless Communications, vol. 17, no. 3, pp. 10-22,
June 2010.

[20] Fang-wei Li, Ya-qing Zhang and Liang-wei Li, “Enhanced Discontinuous
Reception Mechanism for Power Saving in TD-LTE,” in 3rd IEEE International
Conference on Computer Science and Information Technology (ICCSIT), vol. 9,
pp. 682-686, July 2010.

[21] A. Ghosh, R. Ratasuk, B. Mondal, N. Mangalvedhe, and T. Thomas, “LTE-Advanced: Next-Generation Wireless Broadband Technology,” IEEE Wireless Communications, Vol. 17, No. 3, pp. 10-22, June 2010.

[22] H.-C.Wang, C.-C. Tseng, G.-Y. Chen, F.-C. Kuo, and K.-C. Ting, “Accurate analysis of delay and power consumption of lte drx mechanism with a combination of short and long cycles,” in Wireless Personal Multimedia Communications (WPMC), 2012 15th International Symposium on, Sept 2012, pp. 384–388.