Abstract
This paper presents the link level simulator developed at the Telecommunication Department of the University of Žilina. The simulator was developed as part of the project VEGA No. 1/0140/03 "Effective radio resources management methods in next generations of mobile communication networks" and it will be used in the more complex radio interface simulator of the next generation of mobile communication network built at our department. Students studying some problems about spread spectrum methods will also use the simulation model in some subjects, e.g. Digital communications, Mobile Radio Networks.The simulator was developed in MATLAB Simulink and is made on a block principle, which allows adapting and configuring the model as necessary.In this contribution we present the model solution and some simulation results in an uplink direction. The intention of the contribution is not to present new and original results (similar simulators were previously developed in many institutions [1,2]), but to give an overview what will be realized at our department in the field of mobile communication networks.
Highlights
The UMTS (Universal Mobile Telecommunication System) is the third generation mobile communication system, which is scheduled to start service in Europe as a part of IMT-2000 (International Mobile Telecommunication)
The UMTS system is based on two different solutions: WCDMA (Wideband Code Division Multiple Access), which uses frequency division duplex (FDD) and TD-CDMA (Time Division CDMA) designed for time division duplex (TDD)
The simulator is designed to evaluate the Bit Error Rate (BER) and Frame Error Rate (FER), which can be measured as a function of signal to interference ratio (SIR), spreading factor (SF), The general structure of the radio chain is almost the same for voice and data services, so we used some simplification in the construction of time frames to be able to compare the results
Summary
The UMTS (Universal Mobile Telecommunication System) is the third generation mobile communication system, which is scheduled to start service in Europe as a part of IMT-2000 (International Mobile Telecommunication). It is designed to provide a wide range of services to mobile and stationary users in a variety of working environments and application areas. Propagation channel (8 channel types), scrambling code, interleaver and Forward Error Correction (FEC) type. Multiple access interference is generated by up to 8 interfering terminals with adjustable parameters
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