Title :
Management of channelization codes at the forward link of WCDMA
Author :
Rouskas, Angelos N. ; Skoutas, Dimitrios N.
Author_Institution :
Dept. of Inf. & Commun. Syst. Eng., Univ. of Aegean, Samos, Greece
Abstract :
We examine the orthogonal variable spreading factor (OVSF) code tree management problem at the forward link of 3G WCDMA systems. Considering single code operation, we evaluate the performance of a code selection scheme called recursive fewer codes blocked scheme (RFCB). RFCB manages to mitigate code blocking and thus minimizes the fragmentation of the OVSF code tree capacity. Simulation results demonstrate the efficiency of the RFCB scheme compared to previously proposed schemes.
Keywords :
3G mobile communication; block codes; broadband networks; channel allocation; channel coding; code division multiple access; probability; telecommunication network management; trees (mathematics); OVSF; RFCB; WCDMA system; channelization codes; code blocking probability; code selection scheme; code tree management problem; forward link; orthogonal variable spreading factor; recursive fewer codes blocked scheme; wideband code division multiple access; Binary trees; Modeling; Multiaccess communication; Scattering; Systems engineering and theory;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2005.1496580
