中文摘要：

不同于传统互联网，作为涵盖了数据感知、处理和传输的复杂任务型网络，无线传感器网络面向应用的特点给服务质量（QoS）研究带来了许多新的挑战，需要针对Qos体系结构以及Qos指标间复杂关系的系统工作．文中首先提出了无线传感器网络中QoS指标的分层模型以及相应的规范化描述，然后分析了QoS指标的映射关系，最后提出了一个层次化的QoS体系结构，希望为无线传感器网络中QoS保障技术的系统性研究提供参考．

英文摘要：

As a complex network consisting of sensing, processing and communication, wireless sensor network is driven by various applications and highly requires new QoS （Quality of Service） guarantees. However, unlike traditional Internet, its unique characteristics have brought unprecedented challenges in the area of QoS research. First a hierarchical description （user level, network level and node level） and a comprehensive specification for QoS parameters are presented in this paper. Then the mapping relationship between QoS parameters is carefully analyzed. Final- ly, a hierarchical QoS architecture is proposed for systemic QoS support in wireless sensor networks.