Title :
QoS guaranteed vertical handoff signaling scheme for heterogeneous networks
Author :
Yihong, Wang ; Qi, Zhang ; Ying, Wang ; Ping, Zhang ; Li, Victor O K
Author_Institution :
WTI Labs., Beijing Univ. of Posts & Telecommun., China
Abstract :
Signaling process of vertical handoff with QoS support between GPRS and WLAN is developed. Schemes of handoff preparing loop (HPL) and layer 3 (mobile IP layer) bi-direction connections between GPRS and WLAN are proposed in order to provide QoS guarantee. However, bi-direction connection will occupy more network resources. To solve this problem, a parameter "connecting lifetime" is introduced. The latency analysis and simulation results show that systems could achieve better performance in terms of handoff latency and outage probability.
Keywords :
IP networks; packet radio networks; probability; quality of service; telecommunication signalling; wireless LAN; GPRS; HPL; QoS; WLAN; general packet radio service; handoff preparing loop; heterogeneous network; latency analysis; layer 3 bidirection connection; outage probability; quality of service; vertical handoff signaling scheme; wireless local area network; Analytical models; Bandwidth; Bidirectional control; Delay; Fuzzy logic; Ground penetrating radar; Joining processes; Large scale integration; Signal processing; Wireless LAN;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2005. MAPE 2005. IEEE International Symposium on
Print_ISBN :
0-7803-9128-4
DOI :
10.1109/MAPE.2005.1618137
