Trusted Network Selection using SAW and TOPSIS Algorithms for Heterogeneous Wireless Networks

Seamless continuity is the main goal in fourth generation Wireless networks (FGWNs), to achieve this “ HANDOVER” technique is used, when a mobile terminal(MT) is in overlapping area for service continuity, Handover mechanism are mainly used. In Heterogeneous wireless networks main challenge is continual connection among the different networks like WiFi, WiMax, WLAN, WPAN etc. In this paper, Vertical handover decision schemes are compared and Multi Attribute Decision Making (MADM) is used to choose the best network from the available Visitor networks (VTs) for the continuous connection by the mobile terminal. In our work we mainly concentrated to the handover decision phase and to reduce the processing delay in the period of handover. MADM algorithms SAW and TOPSIS where compared to reduce the processing delay by using NS2 to evaluate the parameters for processing delay.

[1]  David Binet,et al.  MADM-based network selection in heterogeneous wireless networks: A simulation study , 2009, 2009 1st International Conference on Wireless Communication, Vehicular Technology, Information Theory and Aerospace & Electronic Systems Technology.

[2]  Vincent W. S. Wong,et al.  A Vertical Handoff Decision Algorithm for Heterogeneous Wireless Networks , 2007, 2007 IEEE Wireless Communications and Networking Conference.

[3]  Guy Pujolle,et al.  An overview of vertical handover decision strategies in heterogeneous wireless networks , 2008, Comput. Commun..

[4]  Enrique Stevens-Navarro,et al.  Performance comparison between MADM algorithms for vertical handoff in 4G networks , 2010, 2010 7th International Conference on Electrical Engineering Computing Science and Automatic Control.

[5]  David L. Olson,et al.  Comparison of weights in TOPSIS models , 2004, Math. Comput. Model..

[6]  C. Chandrasekar,et al.  Comparison of vertical handoff decision scheme in heterogeneous wireless network , 2010, 2010 IEEE International Conference on Computational Intelligence and Computing Research.

[7]  Guy Pujolle,et al.  A Vertical Handoff Decision Scheme in Heterogeneous Wireless Systems , 2008, VTC Spring 2008 - IEEE Vehicular Technology Conference.

[8]  G. Pujolle,et al.  Distributed Handoff Decision Scheme using MIH Function for the Fourth Generation Wireless Networks , 2008, 2008 3rd International Conference on Information and Communication Technologies: From Theory to Applications.

[9]  Jeffrey H. Reed,et al.  Handoff in cellular systems , 1998, IEEE Wirel. Commun..

[10]  G. Pujolle,et al.  A Trusted Handoff Decision Scheme for the Next Generation Wireless Networks , 2008 .

[11]  Wenhui Zhang,et al.  Handover decision using fuzzy MADM in heterogeneous networks , 2004, 2004 IEEE Wireless Communications and Networking Conference (IEEE Cat. No.04TH8733).

[12]  Chetan Sharma,et al.  Always Best Connected , 2008 .

[13]  Guy Pujolle,et al.  Vertical Handoff Decision Scheme Using MADM for Wireless Networks , 2008, 2008 IEEE Wireless Communications and Networking Conference.

[14]  Guy Pujolle,et al.  Processing-delay reduction during the vertical handoff decision in heterogeneous wireless systems , 2008, 2008 IEEE/ACS International Conference on Computer Systems and Applications.

[15]  Vincent W. S. Wong,et al.  Comparison between Vertical Handoff Decision Algorithms for Heterogeneous Wireless Networks , 2006, 2006 IEEE 63rd Vehicular Technology Conference.

[16]  Hossam S. Hassanein,et al.  Handoffs in fourth generation heterogeneous networks , 2006, IEEE Communications Magazine.

[17]  Vincent W. S. Wong,et al.  An MDP-Based Vertical Handoff Decision Algorithm for Heterogeneous Wireless Networks , 2008, IEEE Transactions on Vehicular Technology.