Multi-Constraint Dynamic Access Selection in Always Best Connected Networks

Abstract— In future generation networks, various access technologies, such as Wi-Fi, Bluetooth, GPRS and UMTS, etc., are simultaneously available to mobile devices. They vary in characteristics (communication range, power consumption, security, etc.) and QoS parameters (bandwidth, delay, etc.). The notion of Always Best Connected (ABC) enables people to run applications over the most efficient combination of access technologies with continuous connectivity. Access selection is the key functional block in ABC solutions, as it chooses the most suitable access networks for application traffic flows. However, it is important that access selection decisions be dynamically made, minimizing the power consumption on mobile devices while satisfying QoS requirements and user/application preferences. In this paper, we model the problem of multi-constraint dynamic access selection (MCDAS) as a variant of bin packing problem. A series of approximation algorithms derived from the First Fit Decr...

• Type: Conference
• Year: 2005
• Where: MOBIQUITOUS
• Authors: Bo Xing, Nalini Venkatasubramanian
• Keywords: Access Selection, Access Technologies, MOBIQUITOUS 2005, Power Consumption