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With the ever-increasing demand for wireless traffic and quality of services (QoS), wireless local area networks (WLANs) have developed into one of the most dominant wireless networks that fully influence human life. As the most widely used WLANs standard, IEEE 802.11 will release the upcoming next generation WLANs standard amendment: IEEE 802.11ax. Thus, this article briefly surveys the key technologies...
Dense carrier sensing wireless networks are important scenarios to enable ubiquitous mobile Internet access. In this work, we study user experience from the end-to-end performance of dense p-persistent CSMA networks that suffers from operation interference among many non-coordinated APs. Results show that in dense networks, the effective coverage of APs shrinks and most STAs don't receive satisfactory...
This paper introduces a novel algorithm that increases the efficiency of the current cloud-based smart-parking system and develops a network architecture based on the Internet-of-Things technology. This paper proposed a system that helps users automatically find a free parking space at the least cost based on new performance metrics to calculate the user parking cost by considering the distance and...
In Radio Frequency IDentification (RFID) system, one of the most important issues that affect the data integrity is the collision resolution between the tags when these tags transmit their data to reader. In framed slotted ALOHA based RFID Systems, a proper choice of the frame size has a great influence on overall system performance. Hence, in this paper we develop an accurate method to estimate the...
There are two main types of applications for vehicular ad-hoc networks (VANET): safety applications and user applications (such as entertainment and mobile commerce). For user applications, Internet connectivity is a necessity. However, it is challenging to provide fast handoff for vehicles in a VANET due to the rapid movement of vehicles. Previous studies have showed that the time required by the...
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