Service Time Estimation in Multiple-Rate IEEE 802.11 WLANs With and Without Opportunistic Cooperative Mechanism Under Unsaturated Load Conditions
Wireless media servers and real-time applications are becoming increasingly popular in most homes. Wireless network latency is a key factor in many applications. The objective of this paper is to derive an analytical framework to estimate the latency in terms of the average service time of the most used multiple-rate wireless link protocol, i.e., IEEE 802.11. A number of analytical models for IEEE 802.11 exists in the literature. However, to the best of the authors' knowledge, no general analytical model exists that jointly models IEEE 802.11 latency under the assumption of using multiple transmission rates and unsaturated load traffic.