40 
 
 
Parameter description 
No ACK policy is applicable to scenarios where the interference is mild. According to this 
policy, no ACK packet is used during wireless packet transmission to acknowledge packet 
reception. 
No ACK policy can effectively improve transmission rate. However, in case of strong 
interference, lost packets are not sent again if this policy is adopted. This leads a higher 
packet loss rate. 
Enhanced Distributed Channel Access (EDCA): It is a channel competition mechanism to 
ensure that packets with higher priorities are assigned more bandwidth and transmitted 
earlier. 
It specifies the EDCA parameters used by the router. 
It specifies the EDCA parameters of the client. 
 
CWmin: Exponent form of CWmin 
 
CWmax: Exponent form of CWmaxContention window. CWmin and CWmax specify the