基于固定中继的盲区覆盖的研究

如何减小蜂窝小区的盲区覆盖一直是多跳蜂窝网络研究的热点问题。这里提出了一种新的在传统蜂窝小区中划分扇区并加入固定中继的系统模型。该系统模型通过数学模型解析了节点移动到盲区边缘或未完全进入盲区时的距离,并通过算法描述了盲区附近节点需要选择跳板节点的条件以及通过跳板节点连接到固定中继后再同基站通信的过程。该方法设计降低了掉话率,维持了正常通信,仿真证明了该方法的可行性。

Study on Coverage of Dead Spot based on Fixed Relay

How to reduce the dead-spot coverage of cellular networks is always a hot research issue.This paper presents a novel system model that divides the traditional sectors in the cellular cell and adds fixed relays in the cellular cell.The system model,with the mathematical model,analyzes the distance when the node moves to the edge of the dead spot or enters the dead spot uncompletely,and by the algorithm,describes the process that the nodes near the dead spot select conditions for springboard nodes and after these nodes are linked to the fixed relay and communicate with the base station.This method reduces the rate of dropped calls and maintains the normal communication.The simulation proves the feasibility of this method.