Date Added: May 2012
As cellular networks are turning into a platform for ubiquitous data access, cellular operators are facing a severe data capacity crisis due to the exponential growth of traffic generated by mobile users. In this paper, the authors investigate the benefits of sharing infrastructure and spectrum among two cellular operators. Specifically, they provide a multi-cell analytical model using stochastic geometry to identify the performance gain under different sharing strategies, which gives tractable and accurate results. To validate the performance using a realistic setting, they conduct extensive simulations for a multi-cell OFDMA system using real base station locations.