Title: DETERMINATION OF PERFORMANCE ENHANCEMENT IN IEEE 802.11 MULTI-RATE WLAN

Issue Number: Vol. 5, No. 4
Year of Publication: Oct - 2015
Page Numbers: 257-269
Authors: Ibrahim Abubakar Alhaji, Bello Idrith Tijjani, Mutari Hajara Ali
Journal Name: International Journal of Digital Information and Wireless Communications (IJDIWC)
- Hong Kong
DOI:  http://dx.doi.org/10.17781/P001824

Abstract:


This work investigates performance anomaly of IEEE 802.11 multi-rate WLAN with respect to throughtput and fairness. Even though in a given WLAN, hosts with different transmission rates exist, IEEE 802.11 allows them to only transmit equal-sized frames. This is unfair and reduces the overall throughput of the network. A new technique is proposed in this work to mitigate this problem by making the transmission time of the host equal instead, thereby adjusting their packet sizes in proportion to their individual transmission rates. Analytical and simulation analyses show that the proposed scheme eliminates the anomaly by improving the throughput and fairness index (FI) of a given WLAN.