While it is commonly understood that 802.11a / 802.11g as 54Mbps WLANs; and 802.11b as 11Mbps WLAN, the actual achievable throughput for these standards is much lower.
This thesis is focused on the evaluation of the theoretical performance of IEEE 802.11a/b/g wireless technologies. By using the exact formulas, the theoretical maximum throughput for different MSDU sizes, MAC schemes and spectrum technologies under ideal conditions is calculated. The results demonstrate that RTS/CTS scheme has considerable impact on the throughput and bandwidth efficiency of the various IEEE 802.11 systems. In addition, CTS-to-self and RTS/CTS legacy protection mechanisms influence the throughput of 802.11b and 802.11g in hybrid b/g mode.
For realistic channel conditions in harsh environments that pose a challenge to the performance of the IEEE 802.11 wireless networks, the experimental measurements are obtained from two a group of students in sms048 course. They made the measurements from operating an 802.11g based wireless network in the LKAB underground iron ore mine in Sweden. By comparing experimental data with theoretical calculations, the path loss exponent for in the mine has been estimated.
Author: Akhavan, Mohammad Reza
Source: Luleå University of Technology
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