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.
Opportunistic scheduling exploits the multiuser diversity to improve the performance of wireless communications. The scheduling gain is enabled by the channel feedback sent from the receiver to the transmitter. In this paper, we consider the so-called opportunistic cumulative distribution function (CDF) scheduling with threshold-based selective feedback in the orthogonal frequency division multiple...
It is important to know the profiles of partial discharge (PD) signals caused by different interior defaults in GIS and measured by outer ultra-high frequency (UHF) antenna prior to their default identifications. In this paper, four classes of typical physical models in GIS were structured and tested to produce UHF PD signals for the samples of PD identification. Furthermore, the exterior UHF PD signals...
This paper presents a proposal for interference avoidance in Long Term Evolution (LTE) femtocells by using a simple distributed frequency-domain resource allocation and power optimization. A downlink frequency-domain scheduling approach is proposed to roughly separate the macro- and femtocell resource allocation with a small signaling load increase from macrocell to femtocells. The scheduling approach...
In this paper, we propose a simple decentralized frequency-domain resource allocation strategy combined with uplink power optimization for Long Term Evolution (LTE) femtocell base stations (FBSs). We consider femtocells as an underlay network that reuse the existing macrocell spectral bands. The objective of this work is to maximize the uplink throughput of femtocell user equipments (FUEs) without...
In this paper, we analyze the interference distribution and gain of beamforming in closed access femtocells in downlink of a two-tier HSDPA cellular network. We show through simulations that indoor femtocell deployment leads to a dominant interferer scenario. According to results even simple null steering method based on the scarce codebook of HSDPA transmit diversity mode 1 can be beneficially applied...
This paper presents the vision shared by partners from the CELTIC project HOMESNET about Femto Base Station deployed at Home, i.e. Home Base Station (HBS). Three of the main aspects under study are presented. The challenges in HBS self-organizing, including femto-macro coexistence, are explained and methodology for successful self-organization is proposed. To achieve very low radio emission at home...
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.