Title :
Area spectral efficiency of cellular mobile radio systems
Author :
Alouini, Mohamed-Slim ; Goldsmith, Andrea J.
Author_Institution :
Dept. of Electr. Eng., California Inst. of Technol., Pasadena, CA, USA
fDate :
7/1/1999 12:00:00 AM
Abstract :
A general analytical framework quantifying the spectral efficiency of cellular systems with variable-rate transmission is introduced. This efficiency, the area spectral efficiency, defines the sum of the maximum average data rates per unit bandwidth per unit area supported by a cell´s base station. Expressions for this efficiency as a function of the reuse distance for the worst and best case interference configurations are derived. Moreover, Monte Carlo simulations are developed to estimate the value of this efficiency for average interference conditions. Both fully loaded and partially loaded cellular systems are investigated. The effect of random user location is taken into account, and the impact of lognormal shadowing and Nakagami (1960) multipath fading is also studied
Keywords :
Monte Carlo methods; cellular radio; cochannel interference; digital simulation; fading channels; frequency allocation; frequency division multiple access; multipath channels; multiuser channels; time division multiple access; FDMA; Monte Carlo simulations; Nakagami multipath fading; TDMA; adaptive communication system; area spectral efficiency; average interference conditions; bandwidth; base station; cellular mobile radio systems; cochannel interference; fully loaded cellular systems; interference configurations; lognormal shadowing; maximum average data rates; partially loaded cellular systems; random user location; reuse distance; sum; variable-rate transmission; Adaptive systems; Bandwidth; Base stations; Bit error rate; Fading; Frequency; Helium; Interchannel interference; Land mobile radio; Shadow mapping;
Journal_Title :
Vehicular Technology, IEEE Transactions on
