基于Monte-Carlo法的PHS无线网络仿真
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摘要
移动通信的高速发展对移动通信网的规划和优化提出了挑战。计算机辅助是解决这一问题的有效手段。计算机辅助网络规划和优化主要涉及两方面的问题，其一是无线信道仿真，其二是无线传播模型的仿真预测(规划)和运行网络的无线电波覆盖的仿真(优化)，这两方面是论文讨论的关键。
在传播模型仿真中采用对实测数据做数值分析的方法匹配得到符合特定区域的传播模型，弥补了纯粹理论分析计算量过大和经验模型适用面窄的不足。针对无线通信系统中诸如呼叫请求等事件的出现是符合一定概率分布的随机事件这样的特点，在仿真时采用基于事件的蒙特卡罗分析法，使仿真更加接近实际状况。
本文详细分析了仿真系统建立的思路和过程，及其各个模块的功能、目的和实现方法。仿真结果表明该仿真系统能够很好的模拟实际网络参数，对网络规划和优化有指导意义。
The planning and optimization of mobile communication network have encountered great challenge brought by the rapid development of communications techniques. Compute is an effective tool to solve this problem. To simulate a wireless network with compute, we must deal with two aspects of things in order. First one is the simulation of wireless links and the second one is the electromagnetic wave simulation. These two aspects are just we focus on in this paper.
The planning and optimization of wireless communication networks requires highly sophisticated propagation models. Considering the shortcoming of the pure theoretic models and the empirical models, a new method of wave propagation computing is presented, which can simulate wave propagation model in different environments. It is based on the singular value decomposition which is a well known numerical analysis means.
Taking account of the characteristic of the wireless communication network, the program has been written to perform an event based Monte-Carlo simulation of cellular network.
In this paper, the algorithms, the key techniques and the software implementation are discussed in detail.
在传播模型仿真中采用对实测数据做数值分析的方法匹配得到符合特定区域的传播模型，弥补了纯粹理论分析计算量过大和经验模型适用面窄的不足。针对无线通信系统中诸如呼叫请求等事件的出现是符合一定概率分布的随机事件这样的特点，在仿真时采用基于事件的蒙特卡罗分析法，使仿真更加接近实际状况。
本文详细分析了仿真系统建立的思路和过程，及其各个模块的功能、目的和实现方法。仿真结果表明该仿真系统能够很好的模拟实际网络参数，对网络规划和优化有指导意义。
The planning and optimization of mobile communication network have encountered great challenge brought by the rapid development of communications techniques. Compute is an effective tool to solve this problem. To simulate a wireless network with compute, we must deal with two aspects of things in order. First one is the simulation of wireless links and the second one is the electromagnetic wave simulation. These two aspects are just we focus on in this paper.
The planning and optimization of wireless communication networks requires highly sophisticated propagation models. Considering the shortcoming of the pure theoretic models and the empirical models, a new method of wave propagation computing is presented, which can simulate wave propagation model in different environments. It is based on the singular value decomposition which is a well known numerical analysis means.
Taking account of the characteristic of the wireless communication network, the program has been written to perform an event based Monte-Carlo simulation of cellular network.
In this paper, the algorithms, the key techniques and the software implementation are discussed in detail.
引文
1. Xia, H. H. Bertoni, H. L. Maciel, L. R., Radio propagation characteristics for personal communication in urban and suburban environments, IEEE Trans. Antennas propagate., pp. 1439-1447, 1993
2. Xia, H. H. Bertoni, H. L. Maciel, Microcellular propagation characteristics for personal communications in urban and suburban environments, IEEE Trans. 1994, pp. 743-752
3. http://www.sinica.edu.tw/~cytseng/inversepb
4. Michael I. Mandell, Propagation Modeling for Shanghai 3G Field Trial, UTStarcom, 2003
5. Michael I. Mandell, Cellular Network Simulation Program Document and User Manual, UTStarcom, 2002.7
6． 汪雅，艾妮．CELLSIM成都现场测试报告．UTStarcom，2003．8
7. Brendan C. Jones, Derivation of Cochannel and Adjacent Channel Reuse Ratio Distributions in DCA Cellular Systems. IEEE Trans. on Vehicular Tech., Yol, NO. 1 2000.1, pp. 50-62
8． 上海计算机技术研究所．电子计算机仿真算法手册．上海：上海教育出版社，1982．12
9． 蒋忠涌，张力生．移动通信电波传播场强的数据采集与分析．通信学报，1991．1
10. Schwartz, Mischa, Telecommunication networks: Protocols, Modeling and Analysis, Reading, Mass.:Addison Wesley 1978
11. Jones, Brendan C., and David J. Skellern, Derivation of Cochannel and Adjacent Channel Reuse Ration Distributions in DCA Cellular System, IEEE Transactions on Vehicular Technology, vol 49, no.1, 2000.1, pp. 50-60
12. R. Hersch, R. J. Griego, Brownian motion and potential theory, Sci. Amer.,Mar. 1969, pp. 67-74
13. Michael I. Mandell, Cellular Network Simulation Program Document and User Mannual, 2002.7
14. Michael I. Mandell, Propagation Modeling for Shanghai 3G Field Trial, UTStarcom, 2002
15. 郭梯云．移动通信．西安：西安科技大学出版社，1995．9
16. Walfisch, J., Bertoni, H. L, A theoretical model of UHF propagation in urban environments, IEEE Trans. on Antennas and Propagation, 1988, pp. 1788-1796
17. W. C. Y. Lee, Mobile Communications Design Fundamentals, 2nd Ed., J. Wiley & Sons, USA, 1993
18. Y. Okumura, E. Ohmori, T. Kawano, and K. Fukuda. Field strength and its variability in the VHF and UHF land mobile service. Review Electronic Communication Lab., 16(910):825--873, 1968
19． 汪茂光．几何绕射理论．西安：西北电讯工程学院出版社，1985
20． 龚克，赵伟国．个人通信的传播特性研究．电子学报，Vol．23，1995．10
21. K. Chamberlin, R. Luebbers, An evaluation of Longley-Rice and GTD propagation models, IEEE Trans. Antennas Propagat., vol. AP-30, pp. 1093-1098, Nov. 1982
22． 吴志忠．移动通信无线电波传播．北京：人民邮电出版社，2002．9
23. Cavalcante, G. P. S, amd A. J. Giarola, Optimization of radio communication in media with three layers. IEEE Trans on antennas and propagation, 1990, 38(4):433-499
24. Tabbane, S, Handbook of Mobile Radio Networks, Artech House, 2000
25. Stanley B. Lippman, Josée Lajoie. C++ Primer, 3rd Ed., Addison-Wesley Longman, USA, 1998
26． 戴闽鲁．PHS原理与网络维护．北京：人民邮电出版社，2002．11
27． 徐福新．小灵通(PAS)个人通信接入系统．北京：电子工业出版社，2002．1
28. Bertoni, Henry L., Radio propagation for modern wireless systems, Upper Saddle River, N. J. : Prentice Hall PTR, 2000
29． 周巍松等．Linux系统分析与高级编程技术．北京：机械工业出版社，1999．12
30． 杨晓云等译．LINUX程序设计(第2版)．北京：机械工业出版社，2002．1
2. Xia, H. H. Bertoni, H. L. Maciel, Microcellular propagation characteristics for personal communications in urban and suburban environments, IEEE Trans. 1994, pp. 743-752
3. http://www.sinica.edu.tw/~cytseng/inversepb
4. Michael I. Mandell, Propagation Modeling for Shanghai 3G Field Trial, UTStarcom, 2003
5. Michael I. Mandell, Cellular Network Simulation Program Document and User Manual, UTStarcom, 2002.7
6． 汪雅，艾妮．CELLSIM成都现场测试报告．UTStarcom，2003．8
7. Brendan C. Jones, Derivation of Cochannel and Adjacent Channel Reuse Ratio Distributions in DCA Cellular Systems. IEEE Trans. on Vehicular Tech., Yol, NO. 1 2000.1, pp. 50-62
8． 上海计算机技术研究所．电子计算机仿真算法手册．上海：上海教育出版社，1982．12
9． 蒋忠涌，张力生．移动通信电波传播场强的数据采集与分析．通信学报，1991．1
10. Schwartz, Mischa, Telecommunication networks: Protocols, Modeling and Analysis, Reading, Mass.:Addison Wesley 1978
11. Jones, Brendan C., and David J. Skellern, Derivation of Cochannel and Adjacent Channel Reuse Ration Distributions in DCA Cellular System, IEEE Transactions on Vehicular Technology, vol 49, no.1, 2000.1, pp. 50-60
12. R. Hersch, R. J. Griego, Brownian motion and potential theory, Sci. Amer.,Mar. 1969, pp. 67-74
13. Michael I. Mandell, Cellular Network Simulation Program Document and User Mannual, 2002.7
14. Michael I. Mandell, Propagation Modeling for Shanghai 3G Field Trial, UTStarcom, 2002
15. 郭梯云．移动通信．西安：西安科技大学出版社，1995．9
16. Walfisch, J., Bertoni, H. L, A theoretical model of UHF propagation in urban environments, IEEE Trans. on Antennas and Propagation, 1988, pp. 1788-1796
17. W. C. Y. Lee, Mobile Communications Design Fundamentals, 2nd Ed., J. Wiley & Sons, USA, 1993
18. Y. Okumura, E. Ohmori, T. Kawano, and K. Fukuda. Field strength and its variability in the VHF and UHF land mobile service. Review Electronic Communication Lab., 16(910):825--873, 1968
19． 汪茂光．几何绕射理论．西安：西北电讯工程学院出版社，1985
20． 龚克，赵伟国．个人通信的传播特性研究．电子学报，Vol．23，1995．10
21. K. Chamberlin, R. Luebbers, An evaluation of Longley-Rice and GTD propagation models, IEEE Trans. Antennas Propagat., vol. AP-30, pp. 1093-1098, Nov. 1982
22． 吴志忠．移动通信无线电波传播．北京：人民邮电出版社，2002．9
23. Cavalcante, G. P. S, amd A. J. Giarola, Optimization of radio communication in media with three layers. IEEE Trans on antennas and propagation, 1990, 38(4):433-499
24. Tabbane, S, Handbook of Mobile Radio Networks, Artech House, 2000
25. Stanley B. Lippman, Josée Lajoie. C++ Primer, 3rd Ed., Addison-Wesley Longman, USA, 1998
26． 戴闽鲁．PHS原理与网络维护．北京：人民邮电出版社，2002．11
27． 徐福新．小灵通(PAS)个人通信接入系统．北京：电子工业出版社，2002．1
28. Bertoni, Henry L., Radio propagation for modern wireless systems, Upper Saddle River, N. J. : Prentice Hall PTR, 2000
29． 周巍松等．Linux系统分析与高级编程技术．北京：机械工业出版社，1999．12
30． 杨晓云等译．LINUX程序设计(第2版)．北京：机械工业出版社，2002．1
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