Abstract
TCP performance degrades when end-to-end connections extend over wireless connections — links which are characterized by high bit error rate and intermittent connectivity. Such link characteristics can significantly degrade TCP performance as the TCP sender assumes wireless losses to be congestion losses resulting in unnecessary congestion control actions. Link errors can be reduced by increasing transmission power, code redundancy (FEC) or number of retransmissions (ARQ). But increasing power costs resources, increasing code redundancy reduces available channel bandwidth and increasing persistency increases end-to-end delay. The paper proposes a TCP optimization through proper tuning of power management, FEC and ARQ in wireless environments (WLAN and WWAN). In particular, we conduct analytical and numerical analysis taking into account the three aforementioned factors, and evaluate TCP (and “wireless-aware” TCP) performance under different settings. Our results show that increasing power, redundancy and/or retransmission levels always improves TCP performance by reducing link-layer losses. However, such improvements are often associated with cost and arbitrary improvement cannot be realized without paying a lot in return. It is therefore important to consider some kind of net utility function that should be optimized, thus maximizing throughput at the least possible cost.
This work was supported in part by NSF grants ANI-0095988, ANI-9986397, EIA-0202067 and ITR ANI-0205294, and by grants from Sprint Labs and Motorola Labs.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Altman, E., Avrachenkov, K., Barakat, C.: TCP in Presence of Bursty Losses. Performance Evaluation 42, 129–147 (2000)
Anjum, F., Tassiulas, L.: On the Behavior of Different TCP Algorithms over a Wireless channel with Correlated Packet Losses. In: Proceedings of ACM SIGMETRICS (March 1999)
Bakre, A., Badrinath, B.R.: I-TCP: Indirect TCP for Mobile Hosts. In: Proceedings of the 15th International Conference on Distributed Computing Systems (1995)
Balakrishnan, H., Seshan, S., Kartz, R.: Improving Reliable Transport and Handoff Performance in Cellular Wireless Networks. ACM Wireless Networks 1(4) (December 1995)
Barakat, C., Altman, E.: Bandwidth Tradeoff between TCP and Linklevel FEC. In: Proceedings of IEEE International Conf. on Networking, France (July 2001)
Barman, D., Matta, I., Altman, E., Azouzi, R.E.: TCP Optimization through FEC, ARQ and Transmission Power Tradeoffs. Technical report, Boston University, Computer Science Department, Boston, MA 02215 (2003)
Capone, A., Martignon, F.: Bandwidth Estimates in the TCP Congestion Control Scheme. In: Palazzo, S. (ed.) IWDC 2001. LNCS, vol. 2170, p. 614. Springer, Heidelberg (2001)
Carvalho, M.M., Garcia-Luna-Aceves, J.J.: Delay Analysis of IEEE 802.11 in Single-Hop Networks. In: Proceedings of IEEE ICNP, Atlanta, Georgia (2003)
Chan, M.C., Ramjee, R.: TCP/IP Performance over 3G Wireless Links with Rate and Delay Variation. In: Mobicom 2002 (2002)
Chockalingam, A., Zorzi, M., Rao, R.R.: Performance of TCP on Wireless Fading Links with Memory. In: Proceedings of IEEE ICC (June 1998)
Akan, Ö.B., Akyildiz, I.F.: ARC: The Analytical Rate Control Scheme for Real-Time Traffic in Wireless Networks (2003)
Galluccio, L., Morabito, G., Palazzo, S.: An Analytical Study of a Tradeoff Between Transmission Power and FEC for TCP Optimization in Wireless Networks. In: Proceedings IEEE INFOCOM 2003 (2003)
Proakis, J.G.: Communication Systems Engineering. Prentice Hall International Editions, Englewood Cliffs (1994)
Padhye, J., Firoiu, V., Towsley, D., Kurose, J.: Modeling TCP Throughput: A Simple Model and Its Empirical Validation. In: Proceedings of ACM/SIGCOMM 1998, Vancouver, Canada (October 1998)
Pilosof, S., Ramjee, R., Raz, D., Shavitt, Y., Sinha, P.: Understanding TCP Fairness over Wireless LAN. In: Proceedings of IEEE INFOCOM 2003 (2003)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2004 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Barman, D., Matta, I., Altman, E., El Azouzi, R. (2004). TCP Optimization through FEC, ARQ, and Transmission Power Tradeoffs. In: Langendoerfer, P., Liu, M., Matta, I., Tsaoussidis, V. (eds) Wired/Wireless Internet Communications. WWIC 2004. Lecture Notes in Computer Science, vol 2957. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-24643-5_8
Download citation
DOI: https://doi.org/10.1007/978-3-540-24643-5_8
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-20954-6
Online ISBN: 978-3-540-24643-5
eBook Packages: Springer Book Archive