摘要
传统切换算法不能适应多准则切换的要求,基于多准则切换算法的实现越来越重要,必须发展新的技术来提高切换算法的有效性,在用户满意度和网络效率间形成平衡。智能和优化切换算法对像集成自组网(Ad hoc)和蜂窝网络结构的混合网络具有很好的适应性和鲁棒性,能够根据未来混合网络中的各种业务类型的服务质量需求、网络状态以及移动节点条件等多种因素的变化进行自适应切换,可以运用这些智能优化算法来进行更加有效的切换判决,从而提高系统的性能。更进一步的研究方向是在集成Ad hoc和蜂窝网络的环境下,使用智能或优化技术设计垂直切换算法来提高系统整体性能。
Because the traditional handoff algorithms cannot meet the requirement of multi-criteria handoff, realizing the handoff algorithms based on multi-criteria is becoming more and more important. New technologies must be developed to improve the validity of handoff algorithms, and balance the satisfaction of users and the efficiency of networks. The hybrid network of Ad hoc and mobile cellular systems uses intelligent and optimized handoff algorithms that are flexible and robust. These algorithms are able to execute the handoff adaptively. Although the future hybrid networks have such characteristics as different QoS for different services, and varying network status and mobile node conditions, by using these intelligent and optimized algorithms, handoff decision can be carried out more exactly, thus improving system performance. The future research will tackle the environment of integrated Ad hoc and mobile cellular network systems, employing the intelligent and optimized technology to design the vertical handoff algorithm and improve the whole performance of these heterogeneous systems.
出处
《中兴通讯技术》
2007年第5期37-43,共7页
ZTE Technology Journal
基金
国家高技术研究发展计划资助项目(863计划)(No.2006AA01Z208)
关键词
切换
算法
自组网
蜂窝网络
集成
handoff
algorithm
Ad hoc
cellular network
integration
