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 heterogeneous networks, the active/sleep strategy for base stations (BSs) provides an effective way to match capacity to demand and also improve energy efficiency. At the same time, environmental awareness and self-organizing features are expected to play important roles in improving the network performance. In this letter, we propose an active/sleep scheme based on user activity sensing of small...
Despite the advantages of deploying femtocells into cellular networks, the consequent cross-tier interference has seriously limited the network performance. Applying different power control techniques has been heavily discussed in 3GPP as an efficient approach for handling dominant interference scenarios. Instead of relying on system level simulations, this paper evaluates an analytical uplink power...
As conventional single-layered network cannot satisfy the increasing demand in high-speed indoor data service, femtocell has been introduced to provide higher network capacity and better user experience. However, the downlink transmit signal from femtocell base station (FBS) may result in severe cross-tier interference to macrocell users (MUE). To address this problem, we propose a dynamic femtocell...
This paper studies the resource allocation problem for spectrum-sharing femtocell networks. An auction-based algorithm, VCG auction, is proposed to ensure femtocell users submit their utilities truthfully despite the selfish nature of them, so that the resource allocation scheme works efficiently and fairly. We investigate the uplink transmission in a sparsely deployed scenario of Femto-network. By...
Femtocell networks embedded in the macrocell greatly benefit capacity gain from high SINR and dedicated BS to home subscribers. However, the lack of schemes to effectively control the interference and fully utilize radio resources creates challenges to practically facilitate the additive unlicensed spectrum in femtocells. To tackle these challenges, this paper presents a solution to the interference...
This paper investigates downlink frequency resource coordination for LTE network that comprises of macrocell and femtocell. Due to the requirement of high data rate for indoor coverage, femtocells have been considered as a potential solution recently. However, owing to their random and uncoordinated deployment, cross-tier interference exists and affects the system throughput seriously. A hybrid resource...
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.