Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
Wireless Communications
Fundamentals of wireless communication
Fundamentals of wireless communication
Shannon-theoretic approach to a Gaussian cellular multiple-access channel with fading
IEEE Transactions on Information Theory
Interference allowance in clustered joint processing and power allocation
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
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In this work we investigate the information theoretic capacity of the uplink of a cellular system. Assuming centralised processing for all Base Stations, we consider a power-law path loss model along with variable cell size (variable density of Base Stations) and we formulate an average path-loss approximation. Considering a realistic Rician flat fading environment, the analytical result for the per-cell capacity is derived for a large number of users distributed over each cell. We extend this general approach to model the uplink of sectorized cellular system. To this end, we assume that the user terminals are served by perfectly directional receiver antennas, dividing the cell coverage area into perfectly non-interfering sectors. We show how the capacity is increased (due to degrees of freedom gain) in comparison to the single receiving antenna system and we investigate the asymptotic behaviour when the number of sectors grows large. We further extend the analysis to find the capacity when the multiple antennas used for each Base Station are omnidirectional and uncorrelated (power gain on top of degrees of freedom gain). We validate the numerical solutions with Monte Carlo simulations for random fading realizations and we interpret the results for the real-world systems.