Research Article
Signal Strength based Scanning Considering Free Capacity for Handover Execution in WiMAX Networks
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
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| Volume 61 - Issue 15 |
| Published: January 2013 |
| Authors: P. P. Edwin Winston, K. S Shaji |
10.5120/10007-4873
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P. P. Edwin Winston, K. S Shaji . Signal Strength based Scanning Considering Free Capacity for Handover Execution in WiMAX Networks. International Journal of Computer Applications. 61, 15 (January 2013), 34-37. DOI=10.5120/10007-4873
@article{ 10.5120/10007-4873,
author = { P. P. Edwin Winston,K. S Shaji },
title = { Signal Strength based Scanning Considering Free Capacity for Handover Execution in WiMAX Networks },
journal = { International Journal of Computer Applications },
year = { 2013 },
volume = { 61 },
number = { 15 },
pages = { 34-37 },
doi = { 10.5120/10007-4873 },
publisher = { Foundation of Computer Science (FCS), NY, USA }
}
%0 Journal Article
%D 2013
%A P. P. Edwin Winston
%A K. S Shaji
%T Signal Strength based Scanning Considering Free Capacity for Handover Execution in WiMAX Networks%T
%J International Journal of Computer Applications
%V 61
%N 15
%P 34-37
%R 10.5120/10007-4873
%I Foundation of Computer Science (FCS), NY, USA
Abstract
In mobile networks handover is initiated when there is change in network Quality of Service (QoS) parameters such as signal strength, signal to interference noise ratio (SINR), bit error rate (BER) etc. Handover considering signal strength is a basic scheme in mobile networks. Considering only signal strength is not ideal for WiMAX networks, which has stringent QoS requirements. Signal strength along with hysteresis and threshold serves as an accurate handover mechanism in WiMAX network. But it is not necessary that selected target base station have enough capacity to handle the data of mobile station. In this paper we propose a multiple trigger initiated handover execution which considers the signal strength along with hysteresis and threshold during scanning phase and the estimation of free capacity during handover execution phase. We evaluate our proposed scheme in Opnet Modeler simulator and its performance is verified.
References
- R. Vijayan and J. Holtzman, "A model for analyzing handoff algorithms," IEEE Transactions on Vehicular Technology, Vol. 42, No. 3, pp. 351–356, August 1993.
- G. E. Corazza, et al. , "Characterization of handover initialization in cellular mobile radio networks," IEEE VTC' 94, pp. 1869–1872, 1994.
- T. S. Rappaport, "Wireless communications," Prentice Hall, 1996.
- D. Nisith, et al. , "Handoff in cellular systems," IEEE Personal Communications, Dec. 1998.
- M. Gudmundson, "Analysis of Handover algorithm", IEEE VTC, May 1991, pp 537–42.
- M. Gudmundson, "Correlation model for shadow fading in mobile radio systems," Electronics Letters, Vol. 27, No. 23, pp. 2145–2146, November 1991.
- G. P. Pollini, "Trends in handover design," IEEE Com-munication Magazine, Vol. 34, pp. 82–90, March 1996.
- G. P. Pollini, "Handover rate in cellular systems: To-wards a closed form approximation," Global Telecom-munications Conference, GLOBE COM'97, IEEE, Vol. 1, pp. 711–715, November 1997.
- N. Zhang and J. M. Holtzman, "Analysis of handover algorithms using both absolute and relative measurements," IEEE VTC'94, pp. 82–86, 1994.
- B. Singh, et al. , "Sensitivity analysis of handover per-formance to shadow fading in microcellular systems," IEEE ICPWC, 2005.
- S. D. Roy, "Effects of averaging, shadow fading and hysteresis margin on handover performance," CD pro-ceedings, ICEMC, Pesit, Bangalore, Aug. 2007.
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