Non-Saturated Performance Analysis of IEEE 802.11 Broadcast in 2-D Mobile Ad Hoc Networks

The non-saturated performance of the IEEE 802.11 broadcast scheme in the two-dimensional (2-D) mobile ad hoc networks is studied in this paper. A simplified yet reasonable system model is built to derive the closed-form expressions of average packet reception probability, non-saturated throughput, and average queuing delay. Compared with the existing work in the literature, the proposed system model takes into account the effect of arbitrary transmission queue length. Moreover, our analysis considers both the impact of concurrent transmissions caused by identical backoff interval selection and that of hidden nodes caused by limited sensing range on an observed transmitter. All the analysis results are validated by extensive simulations.