Abstract A new transmit power control (TPC) is proposed that changes TPC target randomly in order to obtain the capture effect for DS-CDMA packet mobile radio. The uplink capacity of a DS-CDMA packet mobile radio system with proposed random TPC in a frequency selective fading channel is evaluated by computer simulation. The simulation results show that random TPC provides larger link capacity t...

LTE (Long Term Evolution) designates the successor to the widespread mobile radio standard UMTS (Universal Mobile Telecommunications System). Its introduction is one of the responses to the rapid growth in mobile data traffic. To date, the volume of traffic transmitted over mobile networks worldwidehas doubled every year. In many countries, including Switzerland, this traffic doubling time is j...

One of the stated aims of 3 Generation mobile communications systems is to provide enhanced multimedia services to the user. Such services will include an integration of video, high-quality audio and data services. This paper describes a real-time mobile video communications system which employs ETSI’s GPRS mobile packet system as a mobile access medium. Subjective performance tests are carried...

Theodore S. Rappaport Mobile and Portable Radio Research Group Bradley Department of Electrical Engineering Virginia Polytechnic Institute and State University Blacksburg, VA 24061-0111 The Mobile and Portable Radio Research Group (MPRG) is a relatively new research group at Virginia Tech. Founded in the Spring of 1990, it is conducting basic and applied research in the areas of radio propagati...

In this study, a GPS based vehicle tracking system which has lower cost than similar systems in the market is improved and realized. The system has been tested in Uludag University Campus and the positions of mobile vehicles have been observed with high accuracy from the control center. In this project GM 300 analog two-way radio is used for the communication between mobile vehicles and the con...

This study presents the design and development of a novel mobile wireless system to be used for monitoring seismic events and related electromagnetic signals, employing smart mobile devices like personal digital assistants (PDAs) and wireless communication technologies such as wireless local area networks (WLANs), general packet radio service (GPRS) and universal mobile telecommunications syste...

With the success of XM and Sirius Satellite Radio in the US, and the increasing interest in mobile TV services in the wake of successful trials by European mobile operators, new systems are now being proposed for satellite radio and multimedia broadcasting in Europe. Worldspace has now received authorization from the FCC for launch of their new Afristar 2 GEO satellite to provide services in We...