Abstract: This paper compares the advantages and disadvantages of additive increase and multiplicative decrease control mechanism and proportional fair schedule on TETRA trunked network, and it finds that the additive increase and multiplicative decrease scheme of TCP can degrade QoS performance of TETRA trunked system. For solving this problem, it puts forward a new TETRA trunked queue management method, and designs a queue management counter based on dynamic starting mechanism to manage queue based on average channel quality. The effectiveness of the method on TETRA trunked network is demonstrated by simulation.

Key words: TETRA, additive increase and multiplicative decrease control mechanism, proportional fair schedule, average channel quality

摘要： 比较陆地集群无线电系统(TETRA)集群网络中加增乘减控制机制和按比公平时序调度的优缺点，指出TCP的加增乘减机制会降低TETRA集群系统的QoS性能。提出一种新的TETRA集群队列管理方法，设计基于动态起点机制的队列管理计数器，基于平均信道质量进行队列管理。仿真实验验证了该方法在TETRA集群网络中的有效性。

关键词: 陆地集群无线电系统, 加增乘减控制机制, 按比公平时序调度, 平均信道质量

CLC Number: 

• TP393