Vertical Handover Decision Algorithm Using Multicriteria Metrics in Heterogeneous Wireless Network
Heterogeneous network concept was introduced to satisfy the demands of network’s traffic capacity and data rate. It consists of multiplatform networks with various radio access technologies. Conventionally, a mobile user may roam and accomplish the vertical handover using single criteria, such as re...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Journal of Computer Networks and Communications |
| Online Access: | http://dx.doi.org/10.1155/2015/539750 |
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| author | Gita Mahardhika Mahamod Ismail Rosdiadee Nordin |
| author_facet | Gita Mahardhika Mahamod Ismail Rosdiadee Nordin |
| author_sort | Gita Mahardhika |
| collection | DOAJ |
| description | Heterogeneous network concept was introduced to satisfy the demands of network’s traffic capacity and data rate. It consists of multiplatform networks with various radio access technologies. Conventionally, a mobile user may roam and accomplish the vertical handover using single criteria, such as received signal strength (RSS). Single criteria vertical handover decision, however, may cause inefficient handoff, unbalanced network load, and service interruption. This paper proposed an improved vertical handover decision using multicriteria metrics in the environment of heterogeneous network consisting of three network interfaces: (i) wireless local area network (WLAN), (ii) wideband code division multiple access (WCDMA), and (iii) worldwide interoperability for microwave access (WiMAX). In the vertical handover decision, four metrics are considered: (i) RSS, (ii) mobile speed, (iii) traffic class, and (iv) network occupancy. There are three types of the vertical handover decision algorithm: (i) equal priority, (ii) mobile priority, and (iii) network priority. Equal priority multicriteria handover algorithm improved the number of handoffs by 46.60 while mobile priority multicriteria algorithm improved the number of handoffs by 90.41% and improved the balance index by 0.09%. Network priority multicriteria method improved the number of handoffs by 84.60%, balance index by 18.03%, and average blocking probability by 20.23%. |
| format | Article |
| id | doaj-art-daadef2d5b264307b1e70434c4947d47 |
| institution | OA Journals |
| issn | 2090-7141 2090-715X |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Computer Networks and Communications |
| spelling | doaj-art-daadef2d5b264307b1e70434c4947d472025-08-20T02:21:20ZengWileyJournal of Computer Networks and Communications2090-71412090-715X2015-01-01201510.1155/2015/539750539750Vertical Handover Decision Algorithm Using Multicriteria Metrics in Heterogeneous Wireless NetworkGita Mahardhika0Mahamod Ismail1Rosdiadee Nordin2Department of Electrical, Electronics and System, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43000 Bangi, MalaysiaDepartment of Electrical, Electronics and System, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43000 Bangi, MalaysiaDepartment of Electrical, Electronics and System, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43000 Bangi, MalaysiaHeterogeneous network concept was introduced to satisfy the demands of network’s traffic capacity and data rate. It consists of multiplatform networks with various radio access technologies. Conventionally, a mobile user may roam and accomplish the vertical handover using single criteria, such as received signal strength (RSS). Single criteria vertical handover decision, however, may cause inefficient handoff, unbalanced network load, and service interruption. This paper proposed an improved vertical handover decision using multicriteria metrics in the environment of heterogeneous network consisting of three network interfaces: (i) wireless local area network (WLAN), (ii) wideband code division multiple access (WCDMA), and (iii) worldwide interoperability for microwave access (WiMAX). In the vertical handover decision, four metrics are considered: (i) RSS, (ii) mobile speed, (iii) traffic class, and (iv) network occupancy. There are three types of the vertical handover decision algorithm: (i) equal priority, (ii) mobile priority, and (iii) network priority. Equal priority multicriteria handover algorithm improved the number of handoffs by 46.60 while mobile priority multicriteria algorithm improved the number of handoffs by 90.41% and improved the balance index by 0.09%. Network priority multicriteria method improved the number of handoffs by 84.60%, balance index by 18.03%, and average blocking probability by 20.23%.http://dx.doi.org/10.1155/2015/539750 |
| spellingShingle | Gita Mahardhika Mahamod Ismail Rosdiadee Nordin Vertical Handover Decision Algorithm Using Multicriteria Metrics in Heterogeneous Wireless Network Journal of Computer Networks and Communications |
| title | Vertical Handover Decision Algorithm Using Multicriteria Metrics in Heterogeneous Wireless Network |
| title_full | Vertical Handover Decision Algorithm Using Multicriteria Metrics in Heterogeneous Wireless Network |
| title_fullStr | Vertical Handover Decision Algorithm Using Multicriteria Metrics in Heterogeneous Wireless Network |
| title_full_unstemmed | Vertical Handover Decision Algorithm Using Multicriteria Metrics in Heterogeneous Wireless Network |
| title_short | Vertical Handover Decision Algorithm Using Multicriteria Metrics in Heterogeneous Wireless Network |
| title_sort | vertical handover decision algorithm using multicriteria metrics in heterogeneous wireless network |
| url | http://dx.doi.org/10.1155/2015/539750 |
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