Abstract
A cross-layer wireless LAN system is considered which transmits packets for a number of users simultaneously using OFDMA or SDMA transmission. Due to varying packet lengths and physical bitrates for each user, this results in different transmission times so that users with faster transmissions have to wait until the transmission of the slower users is complete. Packet aggregation can reduce the loss of airtime and enhance the throughput without affecting the delay by filling in the gaps with additional packets which are ready for transmission. In this paper, the throughput is determined analytically and by simulation with and without packet aggregation for some given distribution functions of the packet size and the transmission time. For a more realistic channel model, the throughput enhancement due to packet aggregation is determined by simulations. It is shown that dependent on the distribution of the different flows, a significant throughput enhancement can be achieved.
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Könsgen, A., Herdt, W., Timm-Giel, A., Görg, C.: A Crosslayer Two-Stage Scheduler for Wireless LANs. In: Mobile and Wireless Communications Summit, Budapest, Hungary (2007)
Könsgen, A., Herdt, W., Timm-Giel, A., Wang, H., Görg, C.: An Enhanced Crosslayer Two-Stage Scheduler for Wireless LANs. In: Int. Symposium on Personal and Indoor Wireless Comm. (PIMRC), Athens, Greece (2007)
Kermoal, J.P., Schumacher, L., Pedersen, K.I., Mogensen, P.E., Frederiksen, F.: A Stochastic MIMO Radio Channel Model with Experimental Validation. IEEE Journal on Selected Areas in Communications. Work supported by IST project I-METRA IST-2000-30148 20(6) (2002)
Senst, A., Schulz-Ritticg, P., Croonen, D., Ascheid, G., Meyr, H.: A Wireless Revenue Based Scheduler with QoS Support. In: 41st Annual Allerton Conf. on Communications, Control and Computing, Monticello, IL, USA (2003)
Inan, I., Keceli, F., Ayanoglu, E.: An Adaptive Multimedia QoS Scheduler for 802.11e Wireless LANs. In: Proc. IEEE Int. Conf. on Communication, Istanbul, Turkey (2006)
Yuan, Y., Gu, D., Arbaugh, W., Zhang, J.: Achieving Packet-Level Quality of Service Through Scheduling in Multirate WLANs. In: Proc. Vehicular Technology Conference (VTC), Los Angeles, USA (Fall 2004)
Khan, S., Suhovniko, S., Steinbach, E.: Application-driven Cross-layer Optimization for Mobile Multimedia Communication using a Common Application Layer Quality Metric. In: Proc. 2nd Int. Symposium on Multimedia over Wireless (ISMW), Vancouver, CDN (2006)
Rom, R., Tam, H.P.: Analysis of Performance Trade-offs for an Adaptive Channel-aware Wireless Scheduler. Springer Wireless Network Journal (December 2007)
Liu, Q., Zhou, S., Giannakis, G.B.: Queuing with Adaptive Modulation and Coding Over Wireless Links: Cross-Layer Analysis and Design. IEEE Transactions on Wireless Comm. 4(3) (May 2005)
Glenn, A.G., Leemis, L.M., Drew, J.: Computing the distribution of the product of two continuous random variables. Computational Statistics and Data Analysis 44(3) (January 2004)
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Könsgen, A., Islam, M.S., Timm-Giel, A., Görg, C. (2009). Performance Analysis of Packet Aggregation in WLANs with Simultaneous Multi-user Access. In: Fratta, L., Schulzrinne, H., Takahashi, Y., Spaniol, O. (eds) NETWORKING 2009. NETWORKING 2009. Lecture Notes in Computer Science, vol 5550. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-01399-7_20
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DOI: https://doi.org/10.1007/978-3-642-01399-7_20
Publisher Name: Springer, Berlin, Heidelberg
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