Title :
A QoS guaranteed fast handoff algorithm for wireless LAN
Author :
Shin, Il-Hee ; Lee, Chae-Woo
Author_Institution :
Sch. of Electr. & Comput. Eng., Ajou Univ., Suwon, South Korea
Abstract :
CCRSVP (candidate casting RSVP) algorithm is a new fast handoff method for WLAN which shows good performance in the handoff latency and the bandwidth efficiency aspects. Because it uses an intelligent multicasting method and RSVP, it guarantees QoS. Using L2 information (BSSID) of WLAN, the proposed scheme starts resource reservation and multicasts packets before L2 handoff completes. Thus, it reduces L3 handoff latency also. To analyze its performance, we model handoff process with a Markov chain and show that the proposed algorithm has superior performance than existing L3 handoff algorithms using RSVP.
Keywords :
IP networks; Markov processes; mobile radio; multicast protocols; quality of service; resource allocation; wireless LAN; Markov chain; QoS guaranteed fast handoff algorithm; WLAN; candidate casting RSVP; intelligent multicasting method; mobile IP network; quality of service; Algorithm design and analysis; Bandwidth; Delay; Mobile computing; Multicast algorithms; Performance analysis; Quality of service; Throughput; Ubiquitous computing; Wireless LAN;
Conference_Titel :
Communications, 2004 IEEE International Conference on
Print_ISBN :
0-7803-8533-0
DOI :
10.1109/ICC.2004.1313269
