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.
Advertisement distribution is a novel application in intelligent transportation systems, where advertisements are delivered from source nodes to passengers or drivers in vehicles. This type of application offers passengers instant information and brings potential benefit to the advertisement providers. In this paper, we consider an advertisement distribution scenario, where buses on the road act as...
After disasters, road side units, which can provide wireless communications to vehicles, may fail due to physical damages or power outages. Vehicle-to-vehicle communication also may not perform well owing to lack of neighbours in low vehicle density scenario or collisions in high vehicle density circumstance which may happen in disaster areas. In this study, the deployment of unmanned aerial vehicles...
After disasters, communication infrastructures in disaster-affected areas may fail due to physical damages or power outages. Unmanned aerial vehicles (UAVs) can act as flying base stations to satisfy the communication requirements of people in disaster-affected areas. For the purpose of increasing the data transmission rate and saving energy consumption of wireless telecommunication terminals (WTs),...
In this paper, we propose a hierarchical architecture based on software defined networking (SDN) to manage the physical resources in vehicular ad-hoc networks (VANETs), namely sdnMAC. First of all, a novel roadside unit (denoted by ROFS) is designed, which is an OpenFlow switch equipped with a wireless interface. Then, a hierarchical architecture is proposed for sdnMAC, consisting of two tiers, one...
Advertising among vehicles has become popular with the proliferation of vehicular ad-hoc networks (VANETs). Since the price of the advertisements broadcast in such networks decay over time, distributing advertisements with a high price value to more private vehicles can generate more revenues to the sellers. In this paper, we consider a bus-based priced advertising scenario in a VANET, in which the...
Floating car data (FCD) application is an urban sensing application, which collects the status (position, velocity and heading) of vehicles to feed a traffic management server and estimate the travel time of vehicles, and can be carried by long term evolution (LTE) or a heterogeneous network composed by LTE and vehicular ad hoc network (VANET). However, this application is characterized by high frequency...
In order to reduce the necessary manual intervention in network operation, self-organization and self-optimization of wireless communication systems are introduced. Automatical load balancing (LB), which can decrease the evolved Node B (eNB) overloading and improve the network capacity, draws much attentions from both network operators and manufactures in recent years. In this paper, we propose a...
High Speed Railway(HSR) scenario was currently agreed as the main scenario in the 3GPP Rel.11 study item, Mobile Relay for E-UTRA. Usually, communications of high-speed railway systems suffer from problems such as Doppler spread, radio condition abrupt change and handover failure. Mobile relay is a promising scheme to solve these problems, but the quantitative performance improvement to HSR has not...
Handover Parameter Optimization (HPO) and Load Balancing (LB) are two Self-Organization network (SON) aspects which aim at improving LTE system handover performance and user's satisfaction respectively. However, there is often counteraction between LB and HPO, because LB would increase the frequency of inter-cell handover and correspondingly increase the possibility of handover problems. Furthermore,...
Self-organization and self-optimization of mobile wireless systems is of utmost importance to operators and vendors and investigated for 3GPP Long Term Evolution (LTE). As one of the most important self-optimization issues, Mobility Load Balancing??MLB??has received much attention until now. In this paper, we present a novel method named as TL-MLB (Two-Layer Mobility Load Balancing) in which the over-load...
Deploy and maintenance of Future LTE RAN will be more complex, time consuming, and expensive. In order to meet the requirements of operators and users, self-organization networks is introduced. As one of the most important self-optimization issues, Mobility Load Balancing ( MLB ) has received much attention until now. In this paper, we present a novel method to achieve MLB for LTE RAN, namely, LCIMM...
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.