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Performance analysis of an integrated CS/PS services CDMA system
Wang, Lin; Aghvami, Hamid; Chambers, William G.; Pérez Romero, Jordi; Sallent Roig, José Oriol; Dohler, Mischa
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. GRCM - Grup de Recerca en Comunicacions Mòbils
An analytical model is developed to investigate integrated CS/PS CDMA cellular systems with SIR-based power control. Because packet data are not very sensitive to delay, a defer-first-transmission transmission mode is usually applied to packet data transmission. In the mixed CS/PS environment, link-level congestion control is designed to delay packet data, if necessary, to guarantee real-time delivery quality for CS traffic such as voice and CS data. In interference-limited CDMA cellular systems, because interference (both intracell and intercell) is the limit to spectral efficiency, congestion control is driven by the total received interference level at the BS. With congestion control at link level and SIR-based power control, the intracell and intercell interferences are closely related to each other. A recursive process is developed to evaluate the performance of such a CDMA system. Numerical results such as system capacity and data delay, both with and without power control error considered, are presented.
Peer Reviewed
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Comunicacions mòbils
Mobile communication systems
Code division multiple access
CDMA cellular systems
Cellular radio
Circuit switching
Code division multiple access
Data delay
Defer-first-transmission
Integrated circuit switching-packet switching
Intercell interference
Intracell interference
Llink-level congestion control
Network traffic
Packet data
Packet switching
Power control
Radio links
Radiofrequency interference
Real-time delivery quality
Recursive process
Spectral efficiency
Telecommunication congestion control
Telecommunication traffic
Total received interference
Cellular land mobile radio
Comunicacions mòbils, Sistemes de
Accés múltiple per divisió de codi
Artículo
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
         

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