http://ir.sru.ac.th/handle/123456789/882 Mon, 13 Apr 2026 18:15:54 GMT 2026-04-13T18:15:54Z http://ir.sru.ac.th/handle/123456789/889 Title: A Discrete-Time Simulation for Throughput Performance Evaluation of IEEE802.11 with Hidden Stations Authors: Varanya Plodchinda; Theesid Sriprasert; Amir Parnianifard; Rafee Al Ahsan; Pruk Sasithong; Muhammad Saadi; Pisit Vanichchanunt; Warakorn Srichavengsup; Lunchakorn Wuttisittikulkij Abstract: The hidden station is a major problem in Wireless Local Area Network (WLAN). As the hidden stations obstruct the perception of transmitting packets, this results in a collision during transmission. In this paper, a discrete-time simulation for IEEE802.11 is demonstrated, and the saturation throughput is observed. A comparison between the analytical model and the simulation model is also conducted. For the sake of lucidity, the number of hidden channels is varied and the shared channel medium is monitored over a longer period to observe the situation of hidden and contending stations. Results show an excellent agreement between the analytical and experimental approaches. Fri, 01 Jan 2021 00:00:00 GMT http://ir.sru.ac.th/handle/123456789/889 2021-01-01T00:00:00Z http://ir.sru.ac.th/handle/123456789/888 Title: Solving Hidden Station Problem using Self-Localization Asymmetric Full-Duplex MAC Protocol in WLANs Authors: Varanya Plodchinda; Theesid Sriprasert; S.K.Wijayasekara; Pisit Vanichchanunt; Warakorn Srichavengsup; Robithoh ANNUR; Norrarat Wattanamongkhol; Lunchakorn Wuttisittikulkij Abstract: In recent years, Full-Duplex (FD) communication has become a potential technology for the future wireless local area network (WLAN). The FD Medium Access Control (MAC) enables both asymmetric and symmetric transmission behaviors. Asymmetric full-duplex transmission is used when only Access Point (AP) possesses the full duplex functionality, whereas mobile stations remain conventional half duplex devices. Symmetric full-duplex transmission is used when both AP and mobile stations have full duplex functionality. As a result, asymmetric full-duplex transmission is considered a useful fast solution to improve channel throughput by upgrading mobile devices. Asymmetric fullduplex transmission allows the up-link and down-link communications to take place simultaneously at an AP where the AP send a packet to one mobile station, while receiving a packet from another mobile station, in which both stations are hidden from each other. In order to achieve such an asymmetric fullduplex transmission, the AP must be able to control or guide the transmission of each station to avoid unnecessary collisions without substantial modification to the existing four-way handshake (RTS/CTS) as used in IEEE 802.11 Distributed Coordination Function. In this work, we aim to utilize the mobile station locations to assist the AP to perform proper asymmetric full-duplex transmissions as often to enhance the system throughput. Fri, 01 Jan 2021 00:00:00 GMT http://ir.sru.ac.th/handle/123456789/888 2021-01-01T00:00:00Z