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The traditional MAC protocol of 802.11 detects the loss of a packet and declares it a collision only after the transmission of the entire packet is completed. The early detection of a packet loss can reduce the time spent in collision and as a result improve the overall throughput. This paper presents an analytical performance analysis of the early collision detection for WiFi Direct networks. To...
In this paper, we investigate issues of fairness and spatial reuse in heterogeneous wireless local area networks (WLANs) based on IEEE 802.11ax. According to discussions in the evolving IEEE 802.11ax standardization, the value of carrier sensing threshold (CSTH) needs to be increased, in order to improve spectral efficiency of WLANs by means of spatial reuse. We reveal a serious problem of unfairness,...
The increasing use of wireless networks and the constant miniaturization of electronic devices have empowered the development of wireless body area networks (WBAN). In this paper, we focus on the coexistence problem of WBAN and wireless LAN (WLAN) in medical environments. In order to resolve the unfairness issue caused by coexistence, we propose a novel contention window adaptation scheme for achieving...
In this paper, we design an admission control mechanism on top of our previous study on medical-grade wireless LAN. The proposed admission control scheme controls the total number of real-time electrocardiogram (ECG) monitoring connections in order to guarantee the medical-grade quality of service. We verify the performance of the proposed scheme with ns-2 simulation.
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