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In this paper, optimal content caching strategy is proposed to jointly minimize the cell average outage probability and fronthaul usage in cloud radio access network (Cloud-RAN). Closed form expression of the outage probability conditioned on the user's location is presented, and the cell average outage probability is obtained through the composite Simpson's integration. The caching strategy for jointly...
A kind of diversity-multiplexing tradeoff coordinated block-diagonalization precoding structure is obtained, based on the study of several multi-cell MIMO downlink joint transmission algorithms. Simulation results show that performance of coordinated JT-BD outperforms JT-ZF and JT-MMSE, close to single cell interference-free upper bound. It can effectively eliminate inter-cell interference and greatly...
This paper investigates the downlink capacity of maximal ratio transmission-selection combining (MRT-SC) in the distributed antenna system (DAS). Composite fading channels are assumed, which include path loss, lognormal shadowing and multi-path Rayleigh fading. Analytical approximation of the capacity's cumulative distribution function (CDF) is derived by means of a moment generation function (MGF)...
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