Abstract
The integration of UMTS cellular network and wireless LANs enables users to achieve both the broad coverage of UMTS cellular network and the higher data rate of WLANs. In this paper, we present a transport-layer based simultaneous access scheme which enhances throughput by efficient use of these networks. Two representative transport protocols in the Internet, UDP and TCP, show significantly different behaviors against end-to-end delay and packet losses, and UMTS cellular network and WLANs have different packet losses and end-to-end delay characteristics. After prediction of UDP and TCP throughput in each network, each transport protocol is allocated to the network where total throughput can be maximized. We evaluate the proposed mechanism using NS-2 and show the improvement of the total throughput.
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References
Iera, A., Molinaro, A., Polito, S., Ruggeri, G.: End-to-End QoS Provisioning in 4G with Mobile Hotspots. IEEE Network 29, 26–34 (2005)
Buddhikot, M.M., Chandranmenon, G., Han, S., Lee, Y.-W., Miller, S., Salgarelli, L.: Design and Implementation of a WLAN/CDMA2000 Internetworking Architecture. IEEE Commun. Mag. 41, 90–100 (2003)
Guo, C., Guo, Z., Zhang, Q., Zhu, W.: A Seamless and Proactive End-to-End Mobility Solution for Roaming Across Heterogeneous Wireless Networks. IEEE J. Select. Areas Commun. 22, 834–848 (2004)
McNair, J., Zhu, F.: Vertical Handoffs in Fourth-Generation Multinetwork Environments. IEEE Wireless Commnun. 11, 8–15 (2004)
Padhaye, J., Firoiu, V., Towsley, D.F., Kurose, J.F.: Modeling TCP Reno performance: A simple model and its empirical validation. Comput. Commun Rev. 8, 133–145 (2000)
Lakshman, T.V., Madhow, U.: The Performance of TCP/IP for Networks with High Bandwidth-Delay Products and Random Loss. IEEE/ACM Transactions on Networking, 1997, 336–350 (1997)
Hu, F., Sharma, J.K., Ziobro, J.: An accurate model for analyzing wireless TCP performance with the coexistence of Non-TCP traffic. Computer Networks 42, 419–439 (2003)
UCB/LBNL/VINT, The network simulator-ns-2 http://www.isi.edu/nanam/ns
EURANE: Enhance UMTS Radio Access Networks Extensions for ns-2http://www.tiwmv. nl/eurane/
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Lim, HT., Seok, SJ., Kang, CH. (2007). A Transport-Layer Based Simultaneous Access Scheme in Integrated WLAN/UMTS Mobile Networks. In: Giacobini, M. (eds) Applications of Evolutionary Computing. EvoWorkshops 2007. Lecture Notes in Computer Science, vol 4448. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-71805-5_15
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DOI: https://doi.org/10.1007/978-3-540-71805-5_15
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-71804-8
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