... 1 Adaptive access and rate control of CSMA for energy, rate, and delay optimization Mahdi Khodaian1, Jesús Pérez*2, Babak H Khalaj1 and Pedro M Crespo3 Department of Electrical Engineering, ... performance: (7) where , and are suitable continuous, concave functions, and parameters and control the tradeoff between rate, energy, and delay in the utility function A similar formulation for ... smoothed data rate, and delay in links of a CSMA network They also show that the use of suitable Markov model for the wireless channel improves performance of the adaptation algorithm, mainly for slow...