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2014 (Vol. 7, Issue: 6)
Article Information:

SSVHOP: A Simple and Seamless Vertical Handoff Protocol for Loosely Coupled Integrated UMTS/WLAN Network

Safdar Rizvi and N.M. Saad
Corresponding Author:  Safdar Rizvi 

Key words:  Heterogeneous wireless networks, loose coupling, seamless mobility, tight coupling, UMTS/WLAN integration, vertical handoff,
Vol. 7 , (6): 1268-1278
Submitted Accepted Published
April 11, 2013 April 22, 2013 February 15, 2014
Abstract:

To provide anywhere at any time services in an integrated wireless networking environment, seamless mobility is one of the most important and challenging issues. Recent literature shows that the seamless mobility can be achieved by performing significant modifications in existing network designs and protocol architectures. However, such intensive modification increases the network implementation complexity and deployment cost. In this study , we have proposed a Simple and Seamless Vertical Handoff Protocol (SSVHOP) to attain the seamless mobility without implementing any major modification in the existing network topology or protocol architecture. The foundations of the underlying principle of the SSVHOP are based on a proactive RSS handoff triggering mechanism and multi-homing capabilities of mobile terminal. In addition, SSVHOP reduces the signaling and processing cost of the network to achieve low handoff delay and packet loss during upward and downward vertical handoff scenarios. Moreover, it has been observed that the proposed design also improves the data session performance by routing the data packets on the optimal route and by introducing an overhead free mechanism for data transportation in an integrated UMTS/WLAN network. We evaluated and compared the SSVHOP with the tight coupling mechanism. By analyzing mathematical modeling and simulation results, it is evident that the SSVHOP performs better than the tight coupling mechanism for all tested applications and measurement parameters.
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  Cite this Reference:
Safdar Rizvi and N.M. Saad , 2014. SSVHOP: A Simple and Seamless Vertical Handoff Protocol for Loosely Coupled Integrated UMTS/WLAN Network.  Research Journal of Applied Sciences, Engineering and Technology, 7(6): 1268-1278.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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