Smooth is better than sharp: a random mobility model for simulation of wireless networks
MSWIM '01 Proceedings of the 4th ACM international workshop on Modeling, analysis and simulation of wireless and mobile systems
A cost-based approach to vertical handover policies between WiFi and GPRS: Research Articles
Wireless Communications & Mobile Computing - Special Issue: WLAN/3G Integration for Next-Generation Heterogeneous Mobile Data Networks
Saturation throughput analysis of error-prone 802.11 wireless networks: Research Articles
Wireless Communications & Mobile Computing - RRM for Next-Generation Wireless and Mobile Communication Systems
A Novel Decision Strategy of Vertical Handoff in Overlay Wireless Networks
NCA '06 Proceedings of the Fifth IEEE International Symposium on Network Computing and Applications
Vertical handoffs in fourth-generation multinetwork environments
IEEE Wireless Communications
Providing statistical QoS guarantee for voice over IP in the IEEE 802.11 wireless LANs
IEEE Wireless Communications
Cross-Layer combining of adaptive Modulation and coding with truncated ARQ over wireless links
IEEE Transactions on Wireless Communications
Beyond 3G: vision, requirements, and enabling technologies
IEEE Communications Magazine
Efficient mobility management for vertical handoff between WWAN and WLAN
IEEE Communications Magazine
Handoffs in fourth generation heterogeneous networks
IEEE Communications Magazine
IEEE Network: The Magazine of Global Internetworking
Cross-layer handover scheme for multimedia communications in next generation wireless networks
EURASIP Journal on Wireless Communications and Networking - Special issue on multimedia communications over next generation wireless networks
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Next generation wireless communications are expected to rely on integrated networks consisting of multiple wireless technologies. Heterogeneous networks based on Wireless Local Area Networks (WLANs) and Wireless Wide Area Networks (WWANs) can combine their respective advantages on coverage and data rates, offering a high Quality of Service (QoS) to mobile users. In such environment, multi-interface terminals should seamlessly switch from one network to another in order to obtain improved performance or at least to maintain a continuous wireless connection. Therefore, network selection algorithm is important in providing better performance to the multi-interface terminals in the integrated networks. In this paper, we propose a cost-based vertical handover decision algorithm that triggers the Vertical Handover (VHO) based on a cost function for WWAN/WLAN integrated networks. For the cost function, we focus on developing an analytical model of the expected cost of WLAN for the mobile users that enter the double-coverage area while having a connection in the WWAN. Our simulation results show that the proposed scheme achieves better performance in terms of power consumption and throughput than typical approach where WLANs are always preferred whenever the WLAN access is available.