A Generic Framework for Cross-Layer Optimisation in Wireless Personal Area Networks
A Generic Framework for Cross-Layer Optimisation in Wireless Personal Area Networks
复制标题
无线个域网跨层优化的通用框架
DOI：
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发表时间：
2004
影响因子：
2.2
通讯作者：
R. Prasad
中科院分区：
文献类型：
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作者：
C. Wijting;R. Prasad
无线个人区域网络（WPAN）是下一代无线系统的新概念。无线广域网是在用户周围直接工作的短距离无线系统。设计了一个覆盖端到端系统设计的短程无线通信参考体系结构。传统的基于分层的协议栈实现由于各层功能的低效率、不灵活性和次优性而不能有效地在无线环境中工作。特别是在WPAN和其他短距离无线系统中，性能受益于跨层设计策略，支持自适应性并优化协议栈多层资源的使用。在本文中，我们提倡WPAN系统的跨层优化，并在主设备或领导设备中引入一种用于不同层之间交互的集中控制结构。控制结构使链路特性适应信道状态和用户需求。允许在无线环境中支持异构服务，每种服务都有自己的服务质量需求。
Wireless Personal Area Networking (WPAN) is introduced as a new concept for next generation wireless systems. WPANs are short-range wireless systems operating in the direct surrounding of the user. A reference architecture for short-range wireless communications has been designed covering the end-to-end system design. Traditional protocol stack implementations based on layering do not function efficiently in wireless environments due to inefficiency, inflexibility and suboptimality of the functionalities in the different layers. Specifically in WPAN and other short-range wireless systems the performance benefits from a cross-layer design strategy, supporting adaptability and optimizing the use of resources over multiple layers of the protocol stack.In this paper we advocate cross-layer optimisation for WPAN systems and introduce a centralised control structure for interaction between different layers in master or leader devices. The control structure adapts the link characteristics to the channel state and user requirements. Allowing for the support of heterogeneous services, each with their own quality-of-service demands, in wireless environments.