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.
Smartphones and other devices connected to a mobile network typically create billions of measurement samples every day. Those measurements are currently used for instantaneous resource allocation and link adaptation. There is much room for using the measurements also for network optimization with big data analytics. The measurements give valuable insight into the service quality experienced by devices...
The cloud radio access network (C-RAN), which is a novel technology in 5G wireless architecture, has been recently proposed. Resource allocation can utilize resources more efficiently, which generates a lot of researches in C-RAN architecture. In this paper, we deeply investigate the resource allocation in C-RAN with fronthaul capacity constraints, the concept of deploying cache on RRHs in the traditional...
We consider the problem of maximizing the alphafairness utility over the downlink of a heterogeneous wireless network (HetNet) by jointly optimizing the association of users to transmission points (TPs) and the activation fractions of all TPs. Activation fraction of each TP is the fraction of the frame duration for which it is active, and together these fractions influence the interference seen in...
In this letter, we study how to adaptively tune system parameters to optimize the downlink and uplink throughput performance of IEEE 802.11 networks. In contrast to previous studies which only focus on achieving a target downlink/uplink throughput ratio, we show that by properly choosing the initial backoff window sizes of the access point and mobile stations, the total network throughput (i.e., the...
In mobile network, a deviation of cell coverage area will influence many performance indexes, cell coverage analysis is vital to network optimization. The traditional check method is road testing by manpower which costs much time and resource. This paper presents a new method to analyze the cell coverage area based on phone measured data collected in OMC system. The cell coverage analysis algorithm...
This paper focuses on the congestion control problem on a multi-hop path in mobile wireless networks. Conventional congestion control algorithms do not consider highly mobile devices in a network where link status changes frequently. The assumption of link validity in proactive algorithms results in high network overhead. In this paper, a new on-demand method of congestion control in multi-hop communication...
The optimization of the base station (BS) assignment problem in mobile access networks is a primary task towards enabling efficient utilization of network resources. So far, this problem has been mainly studied in terms of air interface optimization. In this paper, we present a novel BS assignment strategy that integrates backhaul constraints in the user assignment criterion. The motivation of this...
Existing base station (BS) assignment methods in cellular networks are mainly driven by radio conditions since it is assumed that the limiting factor is the air interface. This assumption has been proven to be very reasonable when circuit voice was the dominant service and backhaul capacity provisioning in BS accounting for the peak rate of the radio link was an economically feasible option. However,...
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.