Title :
A Cooperative Vertical Handover Algorithm in Integrated Wireless and Mobile Network
Author :
Yang, Shan ; Zhong, Zhangdui ; Xu, Rongtao
Author_Institution :
State Key Lab. of Rail Traffic Control & Safety, Beijing Jiaotong Univ., Beijing, China
Abstract :
The increasing demand for broadband service, especially in some hot spot areas, requires the network operator integrate different kind of radio access technology (RAT). In order to provide seamless service among the RATs, a vertical handover algorithm is needed. In this paper, we present a cooperative vertical handover algorithm which considers not only the QoS factors but also the signaling cost and the load balance. The QoS information is gathered by the mobile terminal and the grey relational coefficient (GRC) of the QoS part is calculated. After receiving the information from the mobile terminal, the network side estimates the velocity of the mobile terminal and checks the load of different RATs. Finally, handover decision is made according to the GRC of the different RATs.
Keywords :
decision theory; mobile radio; quality of service; radio access networks; telecommunication signalling; QoS factor; RAT; broadband service; cooperative vertical handover decision algorithm; grey relational coefficient; load balance; mobile terminal; quality of service; radio access technology; signaling cost; Bandwidth; Costs; Fuzzy logic; Laboratories; Mobile computing; Quality of service; Rails; Railway safety; Rats; Traffic control;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3692-7
Electronic_ISBN :
978-1-4244-3693-4
DOI :
10.1109/WICOM.2009.5303267
