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http://hdl.handle.net/10397/105537
Title: | A local communication system over Wi-Fi Direct : implementation and performance evaluation | Authors: | Li, F Wang, X Wang, Z Cao, J Liu, X Bi, Y Li, W Wang, Y |
Issue Date: | Jun-2020 | Source: | IEEE internet of things journal, June 2020, v. 7, no. 6, p. 5140-5158 | Abstract: | Wireless communication demands increase sharply with the explosive growth of mobile devices. The communications mainly depend on the infrastructure-based networks, e.g., WLANs and cellular networks. However, such wireless connections may be unavailable in crowded areas (e.g., concert and conference hall) or interrupted by infrastructure failures caused by earthquake or tsunami. These promote the evolution of local communication systems over device-to-device communication, such as Bluetooth and Wi-Fi Direct (WFD). However, none of the existing studies construct a full-featured local communication system, and they do not consider how to support the user mobility either. In this article, we implement and evaluate the performance of a WFD-based local communication system. First, we improve the intragroup communication by the native implementation of WFD on the Android platform, and propose an application-layer forwarding solution for the intergroup communication, which can be applied to three or more connected groups. Then, we put forward a self-adaptive handover mechanism taking user mobility and node failures into account. To deal with the uncertainty in the handover decision procedure, a fuzzy-logic-based normalized quantitative decision algorithm (FNQD) with the weights derived from the fuzzy analytic hierarchy process (FAHP) is utilized. Finally, we evaluate the performance of the system through both simulation and experiment analysis. Results show that we can get a maximum throughput of 31.7 Mb/s for the intragroup communication and a maximum goodput of 4.76 Mb/s for the intergroup communication. What is more, mobile devices could perform various types of handover according to their roles and status, which could improve the robustness of the local communication system. | Keywords: | Device-to-device (D2D) communication Handover Local communication system Wi-Fi Direct (WFD) |
Publisher: | Institute of Electrical and Electronics Engineers | Journal: | IEEE internet of things journal | EISSN: | 2327-4662 | DOI: | 10.1109/JIOT.2020.2976114 | Rights: | ©2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The following publication F. Li et al., "A Local Communication System Over Wi-Fi Direct: Implementation and Performance Evaluation," in IEEE Internet of Things Journal, vol. 7, no. 6, pp. 5140-5158, June 2020 is available at https://doi.org/10.1109/JIOT.2020.2976114. |
Appears in Collections: | Journal/Magazine Article |
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