Abstract
In the application scenario of smart city, there exist many portable mobile devices that communicate in Wi-Fi technique, so communication conflicts among them are unavoidable and lead to low network performance and high energy consumption. To address this problem, this paper studies the optimization method of spatial reuse based on dynamic control of transmit power. Considering the metric of spatial reuse factor, this paper explores how to select the proper transmission radius and power to decrease the adverse effects from the hidden terminals and the exposed terminals. By setting the frame control field in the MAC layer frame according to the received signal strength, the method can adaptively adjust the transmission power of the communication nodes pair to maintain the reception power in the appropriate range. Through the simulation experiment in NS-2, the feasibility and effect of the optimization method for spatial reuse and energy saving are verified.
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Supported by the Scientific Research Foundation for Returned Overseas Chinese Scholars of State Education Ministry (the 50th, 2015).
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Ran, C., Xiong, Qg., Li, Wx., Wei, X. (2017). An Optimization Technique of Spatial Reuse for Communication in Smart City Environment. In: Lee, JH., Pack, S. (eds) Quality, Reliability, Security and Robustness in Heterogeneous Networks. QShine 2016. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 199. Springer, Cham. https://doi.org/10.1007/978-3-319-60717-7_38
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DOI: https://doi.org/10.1007/978-3-319-60717-7_38
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