Title :
Optimal distance estimation for the spectral efficiency of an hybrid cellular DS/SFH CDMA system
Author_Institution :
Dept. of Phys., Athens Univ.
Abstract :
An hybrid direct-sequence/slow frequency hopping code-division multiple-access (DS/SFH-CDMA) system operating in Rayleigh fading is described and its spectral efficiency is estimated in terms of the theoretically achievable average channel capacity (in the sense of information theory) per user. The analysis covers the operation over a broadcast cellular time-varying link and leads to a simple novel closed-form expression for the optimal distance from the base station based on the maximization of the achieved spectral efficiency
Keywords :
Rayleigh channels; cellular radio; channel capacity; code division multiple access; frequency hop communication; spread spectrum communication; Rayleigh fading; broadcast cellular time-varying link; channel capacity; direct-sequence/slow frequency hopping code-division multiple-access system; hybrid cellular DS/SFH CDMA system; information theory; optimal distance estimation; Bandwidth; Broadcasting; Channel capacity; Delay estimation; Frequency estimation; Information theory; Multiaccess communication; Radiofrequency interference; Rayleigh channels; Signal processing;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1692846
