In this paper, to avoid communication interruptions when moving between APs in WLANs, we propose a multilink based seamless handoff scheme for next generation Wi-Fi networks, in which the power of target AP is adjusted to facilitate the connection establishment of STAs in advance. Furthermore, to mitigate extra energy consumption and overlapping basic service set (OBSS) interference to other STAs, we develop a dynamic power adjustment (DPA) algorithm inspired by the PSO (particle swarm optimization) algorithm. The DPA algorithm determines the optimal period of power adjustment and power levels during the handoff process. In the scheme, we also employ three metrics including throughput, power consumption, and OBSS interference to evaluate the system performance. Compared with the traditional AP handoff scheme, our proposed scheme effectively reduces OBSS interference and energy consumption while avoiding communication interruptions.
A Multi-Link Based Seamless Handoff Scheme for Next Generation Wi-Fi Networks
2024-06-24
622623 byte
Conference paper
Electronic Resource
English
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