01359nas a2200145   4500000000100000008004100001260003000042100001900072700002800091700002100119245006900140856003700209300000800246520095900254       2026                            d  cmar # "~2—4,"bIEEE1 aGabriele Gemmi1 aLlorenç Cerdà-Alabern1 aLeonardo Maccari00aReliability Analysis of Wireless Backhaul for Rural Wireless ISP  uhttps://2026.wons-conference.org  a1-43 aIn this paper, we propose a model to improve the reliability of a mesh-based last-mile replacement for broadband connectivity in rural and underserved areas. Using open data from ten such regions, we analyze representative demand scenarios and focus on enhancing the robustness of the corresponding wireless backhaul design. We introduce graph-partitioning methodologies to construct mesh clusters with multiple gateways and increased vertex-connectivity, ensuring stronger resilience to radio and node failures. To capture the stochastic behavior of device outages, we model radio failures through a Markov-chain formulation and derive metrics such as failure probability and expected time to disconnection. Through numerical evaluation, we show that incorporating multi-gateway structures and reliability-aware topology constraints can significantly improve the resilience of rural mesh networks with only modest additional infrastructure requirements.