Title :
Performance evaluation of three different types of channel overloading
Author :
Vanhaverbeke, Frederik ; Moeneclaey, Marc
Author_Institution :
TELIN/DIGCOM, Ghent Univ., Gent, Belgium
Abstract :
We compare the achievable load of three types of overloaded signature sets with multistage successive interference cancellation: random spreading (PN), Welch-bound-equality (WBE) sequences and overall permuted OCDMA/OCDMA (o-O/O) or pseudonoise/OCDMA (PN/O). It is found that o-O/O outperforms PN and WBE for spreading factors N, varying from 16 to 256.
Keywords :
code division multiple access; interference suppression; pseudonoise codes; radiofrequency interference; random noise; random sequences; Welch-bound-equality sequence; channel overloading; multistage successive interference cancellation; overall permuted OCDMA/OCDMA; overloaded signature sets; performance evaluation; pseudonoise/OCDMA; random spreading; Detectors; Downlink; Interference cancellation; Land mobile radio; Mobile communication; Multiaccess communication; Random sequences; Signal design; Signal to noise ratio;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on
Print_ISBN :
0-7803-7822-9
DOI :
10.1109/PIMRC.2003.1264336
