# Heterogeneous Network Switching Strategy Based on Communication Blind Area Dwell Time
## 5 Conclusions  
The research in this article is presented in the model of a user quality of service-based switching strategy for heterogeneous networks [10], which first detects the dwell time of the user receiving device under the visible channel, sets a threshold value, and performs horizontal and vertical switching by comparing the dwell time with the threshold value. Although this model improves the communication quality, it ignores the communication in the channel fading region, so the communication stability is not strong. Based on this, this paper uses ACO-OFDM technology to reduce multipath interference in channel transmission while using the BER of the signal receiver to determine the indoor communication blind zone, which not only enhances the signal communication stability but also improves the recognition of the communication blind zone. At the same time, combined with the horizontal and vertical collaborative handover strategies based on the communication blind zone, it continues to maintain communication stability while minimizing power consumption and improving the communication quality of the networking system. In the future, it can also contribute to the research of high-precision positioning techniques in  
Figure 11: Comparison of the impact of different velocities of the proposed I-VHO, D-VHO, and CBDHVHO schemes on the average network throughput. indoor non-smooth environments [21] and the development and operation of high-data-throughput real-time applications in commercial network environments [22]. In addition, the scheme is based on the data obtained in the MATLAB simulation case, and further physical platforms need to be built to perform experimental validation. At the same time, since it is a simulation environment, we only introduced the additive white Gaussian noise channel and need to further consider the Rayleigh fading channel [23], the Rician fading channel [24], etc., to simulate the real environment. Another unconsidered factor is the self-blocking of the visible channel, which means that the visible channel is blocked by moving objects and may last for some time, so further experiments are needed to improve the indoor network switching mechanism. The contributions of the authors in this paper are the following: Conceptualization, C.Z. and Y.T. ; investigation, C.Z. ; methodology, C.Z. and X.W. ; project administration, Y.T. ; software, C.Z. and Y.Z. ; validation, X.L. and C.Z. All authors have read and agreed to the published version of the manuscript. Research on the intelligent integration device of street lights and electric vehicle charging pile based on the Internet of Things, Grant/Award Number: 20210203148 SF. Not applicable. The authors declare no conflict of interest. * [PERSON] et al. (2022) [PERSON]; [PERSON]; [PERSON]; [PERSON] Access Frameworks and Application Scenarios for Hybrid VLC and RF Systems: State of the Art, Challenges, and Trends. _IEEE Commun. Mag._**2022**, _60_, 55-61. [CrossRef]
* [PERSON] et al. (2015) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Efficient vertical handover scheme for heterogeneous VLC-RF systems. _IEEE/OSA J. Opt. Commun. Netw._**2015**, \(7\), 1172-1180. [CrossRef]
* [PERSON] (2006) [PERSON]; [PERSON] Vertical handover decision-making algorithm using fuzzy logic for the integrated radio-and-OW system. _IEEE Trans. Wirel. Commun._**2006**, \(5\), 176-185. [CrossRef]
* [PERSON] et al. (2018) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Channel adaptive dwell timing for hando-ver decision in VLC-WiFi heterogeneous networks. _EURASIP J. Wirel. Commun. Netw._**2018**, _2018_, 244. [CrossRef]
* [PERSON] et al. (2022) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] A Hybrid Application-Aware VHO Scheme for Coexisting VLC and WLAN Indoor Networks. _J. Netw. Syst. Manag._**2022**, _30_, 52. [CrossRef]
* [PERSON] and [PERSON] (2017) [PERSON]; [PERSON] Research on indoor VLC-WiFi heterogeneous wireless access network. _Semicond. Optoelectron._**2017**, _38_, 853-856. * [PERSON] et al.