Arshad Javeed Viktoria Fodor György Dán PERX: Energy-aware O-RAN Service Orchestration with Pairwise Performance Profiling. 1-8 2025 INFOCOM WKSHPS https://doi.org/10.1109/INFOCOMWKSHPS65812.2025.11152926 conf/infocom/2025w db/conf/infocom/infocom2025w.html#JaveedFD25 streams/conf/infocom