Channel Interference in IEEE 802.11b Systems

There are many different channels defined in the IEEE 802.11 standard. However, the performance of WiFi networks still greatly suffers from the interference between users, even if they are using different channels. In this paper, the authors conduct some theoretical analysis of the interference between two channels, which is further verified by experiments. They show that there is indeed serious interference between two non-overlapping channels if they are close to each other.