无线通信系统中信道拥塞动态调整的研究-《计算机技术与发展》

文章信息/Info

Title:: Study on Dynamic Adjustment on Channel Congestion in Mobile Telecommunication Systems

Keywords:: SDCCH; TCH; percentage of congestion; dynamic adjustment; mobile telecommunication systems

摘要:: 无线通信系统的信道拥塞率能准确地反映信道的使用情况。分析了无线通信网覆盖中产生的信道拥塞，提出一种基于信道拥塞率的动态调整算法。该算法通过对无线通信系统网络侧统计数据的分析，动态调整系统中的信令信道和业务信道的比例，以解决无线通信系统中信道拥塞的问题。在相同的话务模型下，对算法应用前后进行仿真比较。仿真结果表明，采用所提算法可以提高网络的质量，特别是当短时间多用户同时申请信道时，可以明显提高系统的接通率

Abstract:: The channel congestion reflects the use of channel accurately. The causes of channel congestion on mobile teleconmunication systems are analyzed. A new dynamic adjustment algorithm based on channel congestion is proposed. Solving the problem of channel congestion, the proportion between signal channel and traffic channel is dynamically adjust according of statistical data. On the same calling model, simulation results show that the proposed algorithm can increase the quality of mobile network, which the use and nonuse of algorithm is compared, especially, the call completion is improved when lots of requests emerged at the same time