| Publisher | University of British Columbia | ||
|---|---|---|---|
| Format | 201.5KB PDF | Date added | 03 Feb 2006 |
| Topics | Wi-Fi (802.11), Wireless LAN | ||
| Downloads | 150 | ||
The next generation wireless networks will support the vertical handoff mechanism in which users can maintain the connections when they switch from one network to another (e.g., from IEEE 802.11b to CDMA 1xRTT network, and vice versa). Although various vertical handoff decision algorithms have been proposed in the literature recently, there is a lack of performance comparisons between different schemes. This paper compares the performance between four vertical handoff decision algorithms, namely, MEW (Multiplicative Exponent Weighting), SAW (Simple Additive Weighting), TOPSIS (Technique for Order Preference by Similarity to Ideal Solution), and GRA (Grey Relational Analysis). All four algorithms allow different attributes (e.g., bandwidth, delay, packet loss rate, cost) to be included for vertical handoff decision.
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