Effects of Fragmentation in IEEE 802.11b Networks

M.U. Ilyas, M.A.B. Ilyas, Z. Ul-Mustafa, and M. Mufti (Pakisan)


Wireless LAN, IEEE 802.11, Optimum fragment


The growing popularity of Wireless LAN-based connectivity has increased the use of IEEE 802.11b as an edge access technology. Unlike wired networks that can provide large bandwidth, the bandwidth of wireless local area networks (WLANs) is rather limited. Therefore, finding an optimum size of transmitting frame may reduce the transmission time. In this paper, an analysis is performed regarding size of fragments over 802.11b WLAN. It is shown that fragment size lesser than 1500 bytes tantamount to huge throughput losses, whereas, in noisy environment fragmentation considerably improves the performance of a network.

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