Towards Performance Modeling of IEEE 802.11 Based Wireless Networks: A Unified Framework and Its Applications

Performance Metric Sensitivity Computation for Optimization and Trade-Off Analysis in Wireless Networks

“…Kumar et al [2] showed that the derivation of the access probability can be simplified by viewing the exponential back-off as a renewal process. In [4] and [3] different models are presented for the derivation of the individual node throughput in arbitrary IEEE 802.11 network topologies. Our MAC model goes beyond Bianchi's seminal work [1], in that it considers saturated users with ideal (no channel losses) and homogeneous (equal physical data rate) channel conditions with no hidden terminals.…”

“…Our MAC model goes beyond Bianchi's seminal work [1], in that it considers saturated users with ideal (no channel losses) and homogeneous (equal physical data rate) channel conditions with no hidden terminals. The MAC model we present in the current paper modifies and generalizes the IEEE 802.11 models presented in [4] and [5] by Hira et al Their model takes into account blocking and interference, and computes the throughput of the individual nodes in an IEEE 802.11 network with hidden nodes. In [4] only one hop connections are considered and every node can only transmit to a single node.…”

“…The MAC model we present in the current paper modifies and generalizes the IEEE 802.11 models presented in [4] and [5] by Hira et al Their model takes into account blocking and interference, and computes the throughput of the individual nodes in an IEEE 802.11 network with hidden nodes. In [4] only one hop connections are considered and every node can only transmit to a single node. In [5] the model is extended to consider one single path in the network, and it is explained that the same methodology can be used to model multiple paths as long as there is no common node between the paths.…”

Saturation throughput of IEEE 802.11 DCF in multi-hop ad hoc networks

“…Wang et al [13] propose a Markov chain to analyze the saturation throughput, which is the first analytical model in multi-hop ad hoc networks. By adopting Bianchi's result [3], Carvalho et al [5] and Medepalli et al [11] also study the perfonnance of IEEE 802.11 MAC in multi-hop ad hoc networks. However, in [13], [5], and [11], physical carrier sensing threshold and signal-to-interference plus noise ratio (SINR) threshold are not considered, 978-1-4244-2677-5/08/$25.00@2008 IEEE which are two important issues in IEEE 802.11 MAC.…”

“…By adopting Bianchi's result [3], Carvalho et al [5] and Medepalli et al [11] also study the perfonnance of IEEE 802.11 MAC in multi-hop ad hoc networks. However, in [13], [5], and [11], physical carrier sensing threshold and signal-to-interference plus noise ratio (SINR) threshold are not considered, 978-1-4244-2677-5/08/$25.00@2008 IEEE which are two important issues in IEEE 802.11 MAC. Specifically, a node can transmit packets only if the detected power level is below the physical carrier sensing threshold, and a transmission is successful only if the SINR at the receiver is above the SINR threshold.…”