I need to calculate the delay based on given equation. This equation contains some parameters related to Body sensor network and Wifi network. I'm looking for finding the actual values for these parameters, so that I can implement the equation and calculate the delay. These parameters are:   

Lm: denote the length of a BSN data packet.

hm: indicate header length of BSN data packet.

La & Ha : denote the total length and header length of a WiFi data packet.

Cw: denotes the back off time.

M : denotes the number of potential contenders sharing the same access point with the aggregator.

R:  is the maximum number of back off retries.

Please help me finding the reference paper or dataset that contains the values of these parameters.