Efficient Link Handling for Enhanced Quality of Service in eMLSR Devices Under OBSS Scenarios

This article proposes an innovative approach to optimize Enhanced Multi-Link Single Radio (eMLSR) operations in IEEE 802.11be networks under Overlapping Basic Service Set (OBSS) interference conditions. While Wi-Fi 7's Multi-Link Operation (MLO) offers unprecedented performance potential, simultaneous utilization of 5 GHz and 6 GHz links introduces significant cost and implementation challenges due to required isolation mechanisms. To address these constraints, eMLSR enables dynamic link switching, but the associated transition latency can degrade network performance when switches occur too frequently. The proposed solution implements an adaptive RSSI threshold-based switching mechanism inspired by IEEE 802.11ax spatial reuse concepts, where link transitions occur only when interference severity exceeds a dynamically calculated threshold. This intelligent approach balances immediate interference mitigation against cumulative switching overhead, resulting in reduced protocol overhead, enhanced throughput stability, improved power efficiency, and optimized spectrum utilization. Comprehensive article validates significant performance improvements across various metrics in both controlled testbeds and real-world deployments, demonstrating the approach's effectiveness in enabling next-generation wireless applications in dense deployment scenarios.