支持多重业务的地面电视双向方案呼叫接入控制算法

A Call Admission Control Algorithm in Bidirectional Terrestrial Television System of Multiple Services

对于支持多重业务的地面电视系统双向方案,呼叫接入控制影响着用户的QoS和系统的性能。本文基于对已有的呼叫接入控制算法的研究以及地面电视双向方案的业务特点,将缓冲队列策略与适应性带宽分配策略相结合,提出一种适用于多重业务的地面电视系统双向方案的多级降级呼叫接入控制算法。通过MATLAB仿真验证,该算法能够有效降低上述系统的CBP和HDP。

To bidirectional terrestrial television system of multiple services, the call admission control affects the QoS of consumers＇ services and the system performance. Based on the research of call admission control algorithm and the characteristics of bidirectional terrestrial television system of multiple services, we propose a new multi - level degradation call admission control algorithm which combines queue strategy and adaptive resource allocation strategy. Through simulations on Matlab platform, the results show that the proposed call admission control algorithm can decrease the CBP and HDP in the bidirectional terrestrial television system of multiple services effectively.