The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this study, an efficient device-to-device communication-assisted transmission mechanism that improves proximity-based emergency services by prioritizing elderly adults is proposed. The proposed method allows substantially enhanced service quality to be provided to users experiencing life-threatening situations, while ensuring that service quality is maintained for users facing less dire situations...
Device-to-device transmission technology can help base stations achieve high transmission rates and meet high-capacity requirements. It is also a key technology for future markets. Additionally, the coexistence of licensed and unlicensed bands will be relevant to the landscape of the emerging 5th-generation cellular systems. However, there is a shortage of research on efficient transmission during...
This paper proposes an efficient round-robin-based resource scheduling method performed over both the licensed and unlicensed bands in device-to-device-enabled cellular networks. Simulation results demonstrate that, in terms of the average transmission rate and the blocking ratio, the proposed method is superior to the conventional method.
This paper presents a fast and efficient transmission method for use in device-to-device (D2D)-assisted cellular networks. The proposed method is designed to be able to achieve short service time and reduce the number of blocked users subject to the condition that all users' transmission rates are satisfactory. Simulation results show that the proposed method has a much better average data rate and...
A base station (BS) that enables multiple component carriers (CCs) to be jointly utilized for data transmissions is one of the most advanced cellular systems. This kind of BS aims to cope with the amazingly fast-growing demand from various users. However, such a BS is the most energy-intensive part of a cellular network because the activation of its additional CCs consumes a large amount of energy,...
This paper presents an efficient resource allocation approach for outband device-to-device communication within cellular networks. The proposed method aims to maximize bandwidth resource utilization and simplify system protocols, greatly optimizing throughput by minimizing the number of blocked connections and increasing the ease of operation. Using this method, bandwidth resources can be effectively...
In a traditional cellular network, the base station (BS) plays a critical role in linking devices for communications, but the huge user demand, especially in cities, has become a cost burden to the BS. The technique of device-to-device (D2D) communications underlaying cellular networks solves this problem and adds benefits to resource utilization. Nevertheless, the issue of how to efficiently utilize...
Due to the fact that existing cellular data cards usually select networks with the highest physical data rate as their priority choices, network radio resources may not be efficiently and equally utilized in a multiple network environment, even when the network with the highest data rate is already congested. In this paper, we present a dynamic network selection algorithm via a quota-based admission...
Traditional resource allocation studies of wireless access networks almost all focused on the maximization of the network capacity and quality of services (QoS). As the development of the cellular technologies (such as LTE-Advanced) progress, more than one component carrier (CCs) can now be jointly utilized in a base station (BS). However, the use of some CCs may not be necessary at light traffic...
Due to the fact that existing 3.5G network cards usually select networks with the highest data rate as their priority choices, the radio resources may not be efficiently and equally utilized in a multiple network environment, even when the network with the highest rate is already congested. In this paper, we propose two dynamic resource allocation algorithms to resolve such issues assuming an HSPA...
As various wireless technologies and application demands for more and more bandwidth, dynamic channel allocation in multiple bands has become an attractive research direction. In this paper, we propose several channel allocation policies for various types of user profiles under various fluctuation traffic loads in dual-band multi-cell environments. The considered policies include 1) fixed allocation...
Bandwidth resource allocation and scheduling has posed a challenging problem in wireless sensor networks. This paper provides a survey on the current state-of-the-art researches in this important area. Bandwidth reservation is considered in terms of time slot allocation in a pure TDMA or TDMA/CSMA based networks. We first overview different approaches for time slot allocation in a star network topology,...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.