Estimation Algorithm of Contending Stations Based on Improved DCF Model in IEEE 802.11

• 出 处: The Journal of China Universities of Posts and Telecommunica
• 发表日期: 2004年S1期
• 关键词: deter Guangdong seconds separately

The fundamental access method of IEEE 802.11 is a DCF known as carrier sense multiple access with collision avoidance (CSMA/CA) scheme with exponential back-off. RTS__threshold is used to determine whether to deploy RTS/CTS access method. This threshold should vary with the number of contending stations which contend wireless media to get better throughput. The paper proposes an algorithm which estimates the number of contending stations in BSS. The algorithm is shown to be accurate which is verified by elaborate simulations.

The fundamental access method of IEEE 802.11 is a DCF known as carrier sense multiple access with collision avoidance (CSMA / CA) scheme with exponential back-off. RTS__threshold is used to determine whether to deploy RTS / CTS access method. This threshold should vary with the number of contending stations which contend wireless media to get better throughput. The paper is an algorithm that estimates the number the contending stations in BSS. The algorithm is shown to be accurate which is verified by elaborate simulations.