ANALYSIS OF DATA TRANSMISSION IN WIRELESS-LAN FOR 802.11 E2ET

Boddu Manikanta, Chuppana Sampath Kumar

Abstract: The aim of this paper is to investigate the transmission of data between client and server through different IEEE 802.11 wireless LAN multi- HOP network. To improve this issue, the transmission opportunity (TXOP) mechanism is defined in the IEEE 802.11e standard, with which a wireless node can transmit multiple frames consecutively for a maximum channel occupancy time, called TXOP limit. This paper considers the performance of the TXOP mechanism for multi-hop wireless networks. Focusing on a three-node chain topology, we model it as a tandem queuing network with two nodes. The E2ET is derived and the analysis is validated by simulation. Numerical results show that the TXOP mechanism works well for multi-hop wireless networks. It is also shown that adjusting TXOP limit is significantly important in order to increase the overall throughput. In terms of multi-hop wireless networks, there is little analytical work with regard to the E2ET performance. One of the rationales for the analytical difficulty for multi-hop wireless networks is that IEEE 802.11 MAC protocol is too complex to model the behavior of multi-hop frame transmissions.

Keywords: IEEE 802.11e, multi-hop wireless LAN, TXOP, E2ET

DOI: https://doi.org/10.15623/ijret.2013.0211097