Congestion-aware proactive vertical handoff algorithm in heterogeneous wireless networks

Y. Wu; K. Yang; L. Zhao; X. Cheng

Congestion-aware proactive vertical handoff algorithm in heterogeneous wireless networks

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Congestion-aware proactive vertical handoff algorithm in heterogeneous wireless networks

Author(s): Y. Wu ; K. Yang ; L. Zhao ; X. Cheng
DOI: 10.1049/iet-com.2008.0451

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Author(s): Y. Wu ¹ ; K. Yang ¹ ; L. Zhao ² ; X. Cheng ³
- Affiliations: 1: School of Computer Science and Electronic Engineering, University of Essex, UK
  2: State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an, People's Republic of China
  3: Institute of Computer Technology (ICT), Chinese Academy of Science, Beijing, People's Republic of China
Source: Volume 3, Issue 7, July 2009, p. 1103 – 1114
DOI: 10.1049/iet-com.2008.0451 , Print ISSN 1751-8628, Online ISSN 1751-8636

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In heterogeneous wireless networks, when a mobile host/handset (MH) with multiple wireless interfaces changes its location or requires a certain network service, the MH will require a switch between different wireless networks (namely vertical handoff). A congestion-aware proactive vertical handoff algorithm is proposed, which uses a data pre-deployment technology to realise soft handoff between cellular interface and ad hoc interface. Here, the vertical handoff algorithm is implemented in an experimental heterogeneous network structure called converged ad hoc and cellular network, which is an ad hoc overlay system considering the balancing of the traffic between adjacent cellular cells. By evaluations, it is shown that the proposed algorithm can realise low handoff delay and low packet losses, and help to ease congestion issue existing in the heterogeneous networks.

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Congestion-aware proactive vertical handoff algorithm in heterogeneous wireless networks

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