In this paper, we introduce a novel smartphone framework called VisitSense that automatically detects and predicts a smartphone user's place visits from ambient radio to enable behavioral targeting for mobile ads in large shopping malls. VisitSense enables mobile app developers to adopt visit-pattern-aware mobile advertising for shopping mall visitors in their apps. It also benefits mobile user...

This paper proposes a Multi-hop Radio Access Cellular (MRAC) scheme for achieving both highspeed/high-capacity and good area coverage in fourth generation mobile communications systems. In this scheme, we assume two kinds of hop stations, one is a dedicated repeater station installed at a good propagation location such as a rooftop, and the other is a user terminal that temporarily experiences ...

WRC-12 on February under the Agenda Item 1.15 reviewed the possibility of frequency allocations for oceanographic radars in portions of the 3-50 MHz frequency range, and resolved to allocate several portions of the frequency bands in accordance with the Resolution 612 (Rev. WRC-12). Thus it is possible to use for oceanographic radars as much as 2 425 kHz width in the frequency range of 3-50 MHz...

Transmitter diversity at the base station of a cellular mobile radio system provides a means to achieve performance gains similar to those obtained with mobilestation receiver diversity, but without the complexity of a mobile-station receiver antenna array. We investigate Selective Transmit Diversity (STD) in the downlink of the Wideband Code Division Multiple Access (WCDMA) mobile radio channe...

Radio channel characteristics of mobile nodes are quite different compared with the traditional stationary base station to mobile radio channel. Wireless link reliability estimation is necessary for self-organization of wireless mobile multihop networks. In this paper, we measure narrowband path loss measurements in a typical mobile-to-mobile radio environment. For application, we proposed a me...

The mobile radio channel places strong limitations on the performance of wireless communication systems because the transmission principle in wireless communication is more complex than those of the wired networks. In this paper we discuss the radio propagation with an objective to provide an overview of various characteristics of radio channel and an understanding of the process and factors th...

establishing and operating private radio and television and its possible activity beside state radio and television is the selective method of administering radio and television in many countries worldwide. in legal system of iran, state run radio and television in article 44 of the constitution and interpretation of guardian council of mentioned article, establishing private radio and televisi...

The process of developing and enhancing a mobile radio system is a very ambitious task due to the inherent complexity and the manifold dynamics of such networks. Essentially, the problem leads to an analysis of the interferences between radio resources of limited number. Since the problem cannot be solved analytically, comprehensive simulation is a reasonable means to tackle it. Earlier, only s...

With Digital Video Broadcasting (DVB) technology, high data rates (30 – 50 Mbit/s) can be supported. Using terrestrial radio as a transmission medium, small antennas are sufficient for reception, even in moving vehicles and mobile terminals. Using DVB, not only digital television programmes can be transmitted, but also any data content based on Internet standards. Combining DVB broadcast techno...