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Ad Hoc网络是由一组带有无线收发装置的移动终端组成的一个多跳的临时性自治系统。由于其具有的无中心、自组织、可快速展开、可移动等特点,受到国际学术界和工业界的广泛关注,在战场,救灾等特殊场合得到了越来越多的应用。首先介绍了Ad Hoc网络结构,然后从分层角度出发,探讨了各个层的功能和关键技术,最后简要论述了Ad Hoc网络的QoS、安全问题和功率控制,并对其未来提出了展望。
Ad Hoc network is a multi-hop temporary autonomous system composed of a group of mobile terminals with wireless transceivers. Due to its characteristics of centerlessness, self-organization, rapid deployment and mobility, it has drawn wide attention from international academia and industry and has been applied more and more in special occasions such as battlefield and disaster relief. Firstly, Ad Hoc network architecture is introduced. Then, the functions and key technologies of each layer are discussed from the perspective of hierarchy. Finally, the QoS, security and power control of Ad Hoc networks are briefly discussed.