Abstract
The sliding window decorrelating algorithm (SLWA) has been proposed in Wijayasuriya et al . (1992 b, c ) as an alternative to dynamic power control in mobile direct sequence code division multiple access (DS-CDMA) systems. The architecture is readily extended to incorporate RAKE diversity combining techniques, thereby overcoming the aggravated near—far problem (NFP) found in multipath fading environments. In this paper we derive a mathematical model for a multi-user DS-CDMA system incorporating a sliding window (finite sequence length) decorrelator. The main contributions of the analysis are the investigation of performance under the practical limitation of incomplete RAKE combining, characterization of the interference variance in a finite sequence length asynchronous configuration, and the incorporation of vehicle motion. Decorrelation in a mobile radio channel is discussed and results derived from a simulation model presented, in addition to numerical examples from the analytical model.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
