Performance of IEEE 802.11b Wireless Links: An Experimental Study

Performance Modelling of IEEE 802.11g Wireless LAN

“…Zhang et al in [22] argued that by amending a packet size, the wireless stations can reach COT-Fairness as it can reach to high performance. Moreover, the packet size, transmission rate, distance between stations, retry limit and network topology are considered, as they affect the performance of IEEE 802.11b, as Pham et al have studied in their experiments [15]. However, Pham et al have only studied transmission between two stations and have not extended the number of nodes in their experiments, and have not applied their approach to other protocols, like 802.11g.…”

“…In backoff, an unsuccessful node waits for a random time (backoff period) in the range [0, CW ], where CW is a contention window based on the number of transmission failures. The initial value of CW is [31] and [15] for 802.11b/g respectively, and CW is doubled after every unsuccessful transmission, until it reaches to the maximum number [1023], (see [5,7] and [9,10,20] for detailed explorations of the backoff algorithm). CW returns to the initial value after each ACK revived.…”

A PEPA Model of IEEE 802.11b/g with Hidden Nodes

“…As the data rate increases these protocols employ increasingly more sophisticated mechanisms. As a consequence of the proliferation of these protocols, there have been many performance studies considering different properties and issues [6,21]. IEEE 802.11g was introduced in 2003 as a compatible extension to IEEE 802.11b over the 2.4 GHz frequency [22].…”