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 a number of wireless communication applications, the impulse response of multipath communication channels has sparse nature. In this study, physical model for various propagation environments exhibiting sparse channel structure is considered. A superimposed (SI) training-based compressed channel sensing (SI-CCS) technique is proposed for such sparse multipath channels. A non-random periodic pilot...
Angle of Arrival (AoA) statistics at base station (BS) are observed for 3-D macrocell environment that assume uniform distribution of scatterers confined in a semispheroid with a directional antenna employed at elevated BS. Closed-form expressions for joint probability density function (PDF) and marginal PDFs in correspondence to azimuth and elevation angles seen at BS are derived. Furthermore, theoretical...
MIMO (multiple input multiple output) and OFDM (orthogonal frequency division multiplexing) bringing along a number of pros; a combination of both stands a good possibility of being the next-generation (4th generation) of mobile wireless systems. The technology however imposes a challenge that is the increased complexity of channel equalization. Wireless channels are multipath fading channels, causing...
There are numbers of publications addressing control systems for home/office appliance involving infrared remote controls but there is no such publication/protocol/standard addressing solution for mobile-to-home/office appliance controlling through general packet radio services (GPRS) networks without involving any Internet based servers. This paper addresses recent research and development efforts...
There are a number of Internet based instant messengers and mobile-to-Internet instant messengers but there is no such publication addressing mobile-to-mobile instant messaging solution for wireless text based communication through General Packet Radio Services (GPRS) networks without involving Internet based servers. This paper addresses recent research and development efforts in constructing wireless...
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.