近幾年來能源議題被廣受關注，本論文將對無線網路能量管理問題最佳化研究與分析。在一定的服務品質下，如何使3G WCDMA系統之無線網路能量控制(power control)最佳化。依據細胞式網路的概念，在考慮訊號干擾狀況、路徑損失(path loss)和服務效益等情況下，同時規劃下行(downlink)與上行(uplink)的傳輸能量最佳化問題。在解決此規畫問題時須先將非線性問題轉換成線性問題，其使用的演算法主要為分支界定法(Branch-and-Bound)架構。

In recent years, energy issues are of most importance. In this paper, we discuss and analysis the wireless network energy efficiency optimization. Under the basic Quality of Service, We consider how to optimize the power in 3G WCDMA systems. Based on the concept of Cellular Network, we optimize the transmission power for uplink and downlink in consideration of signal interference 、path loss and service benefits. Resolve this problem must first solve nonlinear characteristics, and its use is mainly Branch-and- Bound algorithm method architecture.

[1] N. Zhisheng, Z. Sheng, H. Yao, Z. Qian, and C. Dongxu, "Energy-Aware Network Planning for Wireless Cellular System with Inter-Cell Cooperation," Wireless Communications, IEEE Transactions on, vol. 11, pp. 1412-1423, 2012.
[2] A. Abdel Khalek, L. Al-Kanj, Z. Dawy, and G. Turkiyyah, "Optimization Models and Algorithms for Joint Uplink/Downlink UMTS Radio Network Planning With SIR-Based Power Control," Vehicular Technology, IEEE Transactions on, vol. 60, pp. 1612-1625, 2011.
[3] M. P. Scaparra and R. L. Church, "An exact solution approach for the interdiction median problem with fortification," European Journal of Operational Research, vol. 189, pp. 76-92, 8/16/ 2008.
[4] E. Amaldi, A. Capone, and F. Malucelli, "Planning UMTS base station location: optimization models with power control and algorithms," Wireless Communications, IEEE Transactions on, vol. 2, pp. 939-952, 2003.
[5] K. Osaki, D. Minamihira, H. Furukawa, and Y. Akaiwa, "An FDD and TDD coexistence scheme for imbalanced traffic compensation," in Vehicular Technology Conference, 2005. VTC 2005-Spring. 2005 IEEE 61st, 2005, pp. 2616-2619 Vol. 4.
[6] T. Kay Leong, Y. Boon-Sain, and Y. H. Chew, "Performance Study on the Effects of Cell-Breathing in WCDMA," in Wireless Communication Systems, 2005. 2nd International Symposium on, 2005, pp. 44-49.
[7] C. Lee and H. Shin, "Cell Planning in WCDMA Networks for Service Specific Coverage and Load Balancing," Wireless Personal Communications, vol. 67, pp. 721-739, 2012/12/01 2012.
[8] K. Sipila, Z. C. Honkasalo, J. Laiho-Steffens, and A. Wacker, "Estimation of capacity and required transmission power of WCDMA downlink based on a downlink pole equation," in Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st, 2000, pp. 1002-1005 vol.2.
[9] H. Harri and T. Antti, WCDMA for UMTS: Radio Access for Third Generation Mobile Communications: John Wiley ; Sons, Inc., 2001.
[10] Y. Pochet and L. A. Wolsey, Production Planning by Mixed Integer Programming (Springer Series in Operations Research and Financial Engineering): Springer-Verlag New York, Inc., 2006.