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Analysis of the downlink saturation throughput of an asymmetric IEEE 802.11n-based WLAN

Soleymani, M ; Sharif University of Technology | 2016

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  1. Type of Document: Article
  2. DOI: 10.1109/ICC.2016.7511453
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2016
  4. Abstract:
  5. Frame aggregation (FA) mechanisms improve the throughput of WLANs. In this paper, the effect of the FA mechanism on the throughput of wireless local area networks (WLANs) has been investigated. To this end, we propose an analytical model in order to analyze an IEEE 802.11n network comprised of an access point (AP) and several conventional nodes (CNs), all in the coverage area of each other. With respect to the heavier download traffic compared to the upload one, in our scenario, only the AP uses an FA mechanism and the other nodes use the basic IEEE 802.11 standard. In our proposed analytical model, the maximum downlink (DL) throughput is derived. Regarding the asymmetry among nodes, our analytical model consists of two different queueing networks: one for the AP and the other one for CNs. We verify the accuracy of our analytical results by simulations, i.e., less than 5% mismatch between the analytical and simulation results. We show that there is a tradeoff between the DL saturation throughput and performance of CNs. In other words, the FA improves the AP saturation throughput at the cost of a little degradation of the performance for CNs. © 2016 IEEE
  6. Keywords:
  7. Downlink Saturation Throughput ; IEEE 802.11n standard ; Queueing Network ; Queueing networks ; Standards ; Throughput ; Wireless local area networks (WLAN) ; Access points ; Analytical results ; Coverage area ; Frame aggregation ; IEEE 802.11 standards ; IEEE 802.11n ; Ieee 802.11n standards ; Saturation throughput ; Analytical models
  8. Source: 2016 IEEE International Conference on Communications, ICC 2016, 22 May 2016 through 27 May 2016 ; 2016 ; 9781479966646 (ISBN)
  9. URL: http://ieeexplore.ieee.org/document/7511453