摘要:目前移动通信技术已经由有线电话发展到第四代移动通信（4G），虽然4G仍然在完善阶段，但是已经在全国各地实施覆盖了，在移动通信的发展过程中，第三代移动通信技术（3G）的成就和研究价值是瞩目的，4G也是在3G的基础上扩充发展的。本文首先在绪论部分介绍移动通信系统的发展状况，因为功率控制是随着移动通信的发展逐渐崭露头角，直到现在功率控制在移动通信系统中占有尤为重要的地位。现在对移动通信技术的研究虽然取得了阶段性的成果，但是有很多看不到和未发现的危险性存在，宇宙中的无线资源还有多少，我们还能应用多久，我们在开发一些看不到的资源，因为我们本身看不到他们所以也不会有危险意识，但是在宇宙中能量石守恒的，我们在利用的资源为我们创造了便利，但是也在消耗很多资源，总归会有耗尽的一天，所以对于资源的节约尤为重要。如何节约资源，就是要控制资源，在移动通信中，移动台想基站发射信号是需要频率的，信号在信道中传输也是要消耗资源的，所以我们要根据用户的通信要求，进行合理的功率控制，使用最小的资源最大化保障通信质量。移动通信是一个很复杂的过程，不确定因素很多，要具体分析，使系统发挥最大的作用。71084

在绪论中我就移动通信的发展历程以及未来的发展前景作了简要的介绍，本课题主要是研究移动通信中的功率控制技术，所以在第二章中详细介绍了功率控制的分类以及原则等。每个用户分配到的资源基本不会相差太大，从而达到合理利用分配资源的目的。在本文的第三章进入算法阶段，我提出的改进算法实在MIMO系统基于SIR的分布式功率控制。

毕业论文关键词： 功率控制;CAMA;信干比

Mobile communication system of power control technology research

Abstract:Under the efforts of the scholars and experts from all walks of life at present, the mobile communication technology has been developed from a telephone cable to the fourth generation mobile communication (4 g), while 4 g is still in perfect phase, but has implementation covers all over the country, in the process of the development of mobile communication, the third generation (3 g) mobile communication technology is a remarkable achievement and research value, 4 g is expanded on the basis of the development of 3 g. Now the research of mobile communication technology has made phased achievements, but there are a lot of see and found no dangers exist, how many wireless resources in the universe, how long can we still apply, we in the development of some invisible resources, because we can't see them so there won't be inherently dangerous consciousness, but Shi Shouheng energy in the universe, we in the use of resources for us to create the convenience, but also consume a lot of resources, it will have run out of a day, so for resource conservation is particularly important. How to save resources, is to control resources, in mobile communication, the mobile station to base station transmitting signal to frequency, signal transmission are to be used up in the channel resources, so we should according to the requirements of the user communication,  

power control, reasonable use of minimal resources to maximize security communication quality.Mobile communication is a complicated process, and there is a lot of uncertainty.

This paper in the introduction part introduces the development of mobile communication system, because of the power control is with the development of mobile communication is emerging, until now, power control is especially important in mobile communication system. In the introduction I will the development of mobile communication and the future development prospect of makes a brief introduction, this topic mainly studies the power control technology of mobile communication, so in the second chapter introduced the classification and principle of power control, etc. The power control standards are a reference in the process of power control, in order to make dried ratio convergence in a range, so that each user resources allocated to basic won't vary too big, so as to achieve the purpose of rational utilization of resources. Entered the stage of algorithm in the third chapter of this article, I put forward the improved algorithm of multi-input multi-output (MIMO) system is a distributed power control based on SIR, conditions will interrupt probability as the basis of judgment, without using power control and adopts centralized power control, and compare the simulation results of the distributed power control, found that the improved algorithm has obvious advantages.