DocumentCode :
2553181
Title :
Optimizations in Vertical handoff Decision Algorithms for Real time Services
Author :
Rizvi, Syed ; Aziz, Asif ; Saad, N.M.
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. Teknol. PETRONAS, Tronoh, Malaysia
fYear :
2010
fDate :
15-17 June 2010
Firstpage :
1
Lastpage :
4
Abstract :
The vision of 4G network is to have a unified network of heterogeneous wireless networks. To achieve seamless mobility in such a diverse environment, vertical handoff is still a challenging problem. Traditional handoff mechanisms were based on the Received Signal Strength (RSS), but to have an efficient handoff decision in a heterogeneous network environment in addition to RSS other parameters, e.g. monetary cost, user preferences and network conditions must be taken into account. In many situations unnecessary handoffs are triggered causing degradation of services, reduction in throughput and increase the blocking probability and packet loss. In this paper we propose real time services vertical handoff decision algorithm (RS-VDA). RS-VDA, defined for upward and downward vertical handoff scenarios. The proposed algorithm takes several metrics into account such as velocity of mobile terminal, bandwidth, RSS and delay of the network. The proposed algorithm will improve the overall efficiency of seamless mobility in Next Generation Networks (NGN).
Keywords :
4G mobile communication; mobility management (mobile radio); next generation networks; wireless LAN; 4G network; NGN; RS-VDA; RSS; heterogeneous wireless network; mobile terminal; next generation network; real time service; received signal strength; vertical handoff decision algorithm; 3G mobile communication; Multiaccess communication; Next generation networking; Variable speed drives; Wireless LAN; Wireless communication; Next Generation Networks (NGN); UMTS/WLAN integration; Vertical handover decision algorithm;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Intelligent and Advanced Systems (ICIAS), 2010 International Conference on
Conference_Location :
Kuala Lumpur, Malaysia
Print_ISBN :
978-1-4244-6623-8
Type :
conf
DOI :
10.1109/ICIAS.2010.5716262
Filename :
5716262
Link To Document :
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