CDMA Bunched系统覆盖控制算法研究
doi: 10.3724/SP.J.1146.2006.01803
Research on Coverage Control Algorithm of CDMA Bunched System
-
摘要: 该文对CDMABunched系统位置优化问题进行了研究,给出了使远端天线单元覆盖区域达到最优的方法;根据CDMA系统中断方程提出了一种基于梯度下降算法的CDMABunched系统覆盖控制算法;利用计算机仿真对该算法进行了验证,结果表明,经过优化的系统,用户中断概率较天线单元均匀分步的系统低一个数量级,较规则分布的系统低40%以上。Abstract: In this paper, the situation optimization issue of a CDMA Bunched system is investigated and a method that optimize the points distribution is given. According to outage equation of CDMA system, a coverage control algorithm is proposed based on gradient descent algorithm. Computer simulation results show that outage probability of the optimized system is one order of magnitude less than the uniform distributed system and 40% less than the regular distributed system..
-
ETSI SMG Tdoc SMG2 UMTS D 9/97, Concept GroupDelta Wideband TDMAICDMA, Evaluation Report-PartV0.2.[2]ITU-R WP8F, Draft New Report ITU-R M.[IMT.TRENDS]Technology trends, 27 October 2003: 25-31.[3]Venugopal V V and Sendonaris A. The coverage-capacitytradeoff in cellular CDMA systems [J].IEEE Trans. onVeh.Technol.1999, 48(5):1443-1450[4]Molina A, Nix A R, and Athanasiadou G E. Cellular networkcapacity planning using the combination algorithm for totaloptimization [C]. IEEE Vehicular Technology Conference,Tokyo, Japan, 2000: 2512-2516.[5]Cortes J, Martinez S, and Karatas T, et al.. Coverage controlfor mobile sensing Networks [J]. IEEE Trans. on Roboticsand Automation, 2003, 16(3): 791-803.[6]Du Q, Faber V, and Gunzburger M. Centroidal Voronoitessellations: applications and algorithms [J].SIAM Review.1999, 41(4):637-676[7]袁亚湘，孙文瑜．最优化理论与方法[M]．北京：科学出版社，1997: 108-121.Yuan Y X and Sun W Y. Optimization Theory and Method.Beijing: Science Publishing House, 1997: 108-121. -
计量
- 文章访问数: 3203
- HTML全文浏览量: 89
- PDF下载量: 802
- 被引次数: 0
下载:
