无线异构网络的垂直切换

传统意义上的水平切换算法已经在同构网络中得到很好的研究和应用,而随着多种无线异构网络的出现,下一代网络必须支持垂直切换技术以保证用户从一种类型的网络切换到另一种类型的网络时仍然保持连接。由于切换算法所需考虑因素的多样性和算法本身的复杂性,有必要对现有文献中的网络切换类型、切换因素、切换算法进行了归纳总结,并对垂直切换算法进行比较,指出未来切换算法的研究方向。

Vertical Handoff of Wireless Heterogeneous Network

Traditional horizontal handoff algorithm is well researched and applied to homogeneous networks.And with the emergence of various wireless heterogeneous networks,next generation network must support the vertical handoff technique,thus to ensure the connection when users move from one type of network to another type of network.Due to consideration of various factors in handoff algorithm and the complexity of the algorithm itself,common handoff type,handoff factor,handoff algorithm in literatures are summariz...