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In this paper, the authors characterize the effective throughput for multi-hop paths in IEEE 802.11n based wireless mesh networks. They derive an analytical model capturing the effects of frame aggregation and block acknowledgements, features found in the new IEEE 802.11n standard. They describe the throughput at MAC layer as a function of physical data rate, error rate, and aggregation level and path length. While being mathematically tractable, the proposed model is flexible enough to account for complex and realistic error characteristics of the wireless channel, such as long-term fluctuations and burstiness. They further show how to integrate the well-known Gilbert-Elliot channel model into their model and evaluate both models in their indoor wireless testbed.
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