Abstract
When network is congested, packet collisions will happen and lead to severe throughput decrease. In this paper we propose a novel collision decoding method to decode collided packets, and thus increase network throughput. Our method is specifically designed for OFDM-based WLAN network. IFFT/FFT, channel influence and packet collisions effects are formulated as linear processes. Taking into account network features as random-jitter and retransmission, collision can be seen as a group of linear equations and solved. Simulation results show that by adopting collision decoding method, the network throughput can be improved significantly, especially when the network is congested.
This paper is supported by Research and Development for Commercial LTE-TD Drive Test Equipment Project(2010ZX03002-007-01) and Shanghai Digital Media Processing and Transmission Key Laboratory(STCSM:12DZ2272600).
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© 2012 Springer-Verlag Berlin Heidelberg
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Cao, J., Yang, F., Ding, L., Qian, L., Zhi, C. (2012). Collision Decoding to Improve the Throughput of OFDM-Based WLAN. In: Zhang, W., Yang, X., Xu, Z., An, P., Liu, Q., Lu, Y. (eds) Advances on Digital Television and Wireless Multimedia Communications. Communications in Computer and Information Science, vol 331. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-34595-1_55
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DOI: https://doi.org/10.1007/978-3-642-34595-1_55
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-34594-4
Online ISBN: 978-3-642-34595-1
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