第四代行動通訊 4G LTE 正於世界各地蓬勃發展階段，除了比第三代行動通訊
網路擁有更快速的資料傳輸速度外，更確保了頻寬的資源分配效率更為提高，然而在行動裝置的能源管理議題始終有著可以著墨的地方，所以在本論文中我們會引入在4G LTE中專有的技術，名為「Device-to-Device Communication」，此技術最主要的特點為資料傳輸無須透過基地台來幫忙傳輸，只需要裝置與裝置之間連接好，即可進行傳輸，而如此一來則可以達到省電的效果，至於要以多少的功率傳輸訊號則要由Alternating Direction Method of Multiplier(ADMM) 演算法來求出最佳化的功率輸出解。

4G LTE is widespread in the world, recent years. Except having a higher transmitting speed than 3rd-generation(3G), also include more efficient resource allocation. However, there always exists an issue of power consumption of mobility equipment. Accordingly, we will introduce a technology called “Device-to-Device communication” undelaying LTE, which connect each equipment without Base Station (BS) and only need to make a link between two devices. Due to this way, the purpose of reducing power consumption can be realized. In the case of how much power should transmitter transmit, we will introduce an algorithm named “Alternating Direction Method of Multiplier”. We put these two methods jointly to find out the optimal solution of minimum power consumption.

[1] Mohammad Zulhasnine, Changcheng Huang, Anand Srinivasan, “Efficient Resource Allocation for Device-to-Device Communication Underlaying LTE Network ” 2010 IEEE 6th International Conference on Wireless and Mobile Computing, Networking and Communications

[2] Chia-Hao Yu, Klaus Doppler, C´ assio B. Ribeiro, and Olav Tirkkonen, “Resource Sharing Optimization for Device-to-Device Communication Underlaying Cellular Networks”IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 10, NO. 8, AUGUST 2011

[3] Pekka J¨ anis and Visa Koivunen, C´ assio Ribeiro, Juha Korhonen“Interference-aware resource allocation for device-to-device radio underlaying cellular networks”

[4] Gábor Fodor, Norbert Reider “A Distributed Power Control Scheme for Cellular Network Assisted D2D Communications”

[5] Daquan Feng, Lu Lu, Yi Yuan-Wu, Geoffrey Ye Li, Gang Feng, and Shaoqian Li “Device-to-Device Communications Underlaying Cellular Networks” IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 61, NO. 8, AUGUST 2013

[6] Bin Wang, Li Chen, Xiaohang Chen, Xin Zhang, and Dacheng Yang “Resource Allocation Optimization for Device-to-Device Communication Underlaying Cellular Networks”

[7] Mi Jeong yang, Soon yong lim, hyeong Jun Park, and nam hoon Park “Device-to-Device Bearer Control Architecture for Cellular Data Offloading ”

[8] Xinzhou Wu, Saurabha Tavildar, Sanjay Shakkottai, Tom Richardson, Junyi Li, Rajiv Laroia, Aleksandar Jovicic, “FlashLinQ: A Synchronous Distributed Scheduler for Peer-to-Peer Ad Hoc Networks”

[9] LEI LEI AND ZHANGDUI ZHONG, CHUANG LIN, XUEMIN (SHERMAN) SHEN, “OPERATOR CONTROLLED DEVICE-TO-DEVICE COMMUNICATIONS IN LTE-ADVANCED NETWORKS”

[10] Stephen Boyd, Neal Parikh, Eric Chu ,Borja Peleato and Jonathan Eckstein,
“Distributed Optimization and Statistical Learning via the Alternating Direction Method of Multipliers”