Before revision: A Markovian model  is proposed in this paper to study the performance of 1-persistent CSMA / CA protocols, from which we obtain stable regions with respect to the throughput and bounded delay of Geometric Retransmission and Exponential Backoff scheduling algorithms .
After revision: A Markovian model of 1-persistent CSMA/CA protocols with K-Exponential Backoff scheduling algorithms is proposed in this paper to study the performance of 1-persistent CSMA / CA protocols, from which we obtain stable regions with respect to the throughput and bounded delay of Geometric Retransmission and Exponential Backoff scheduling algorithms .