| Coverage Enhancement in terrestrial 6G Networks using mmWave Technology |
| Paper ID : 1092-ICEEM2025 (R1) |
| Authors |
|
ahmad atef abualmagd *, Saied M Abd El-atty, Somaya Ffeshawy Electronics & Communication Dept. Faculty of Eletronic Engineering, Menoufia University Egypt |
| Abstract |
| Millimeter-wave (mmWave) bands promise to unlock vast swaths of spectrum for future 6G cellular systems, yet their utility in densely built urban areas is fundamentally constrained by high free‑space path loss, susceptibility to blockage by buildings or foliage, and limited diffraction around obstacles. Reconfigurable intelligent surfaces (RISs)—ultra‑thin, planar arrays of passive, low‑power phase‑shifting elements—offer a disruptive means to reshape propagation environments by intelligently reflecting incident mmWave signals toward intended users. In this paper, we present a unified stochastic‑geometry framework that incorporates generalized Nakagami‑m fading to accurately characterize a terrestrial cellular network augmented with randomly deployed RIS panels. We introduce a novel two‑step user‑association policy that first attempts connection to the nearest line‑of‑sight base station and, in the event of blockage, selects the RIS‑mediated link providing the highest received power. Through this model, we derive exact closed‑form expressions for both the probability of association via RIS and the resultant signal‑to‑interference‑plus‑noise‑ratio (SINR) coverage probability. Extensive Monte Carlo simulations in realistic urban layouts corroborate our analytical findings, showing that strategic RIS deployment can dramatically enhance coverage, reliability, and per‑user data rates in mmWave‑dominated 6G networks. |
| Keywords |
| RIS,6G,mmWave |
| Status: Accepted |