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- W2059197520 abstract "Coordinated multi-point (CoMP) transmission has been widely recognized as a spectrally efficient technique in future cellular systems. To exploit the abundant patial resources provided by the cooperating base stations, however, considerable training overhead is required to acquire the channel information. To avoid the extra overhead outweighing the cooperative gain, we propose a method that allows each user to select transmission mode between coherent CoMP and Non-CoMP. We first analyze the average throughput of each user under CoMP and Non-CoMP transmission after taking into account the downlink training overhead. A closed-form mode selection rule is then developed, which depends on the user location and system settings, i.e, the number of cooperating base stations and transmit antennas, training overhead and cell-edge signal to noise ratio. Simulation results show that the proposed downlink transmission mode selection method achieves higher throughput than CoMP for cell-center users and than Non-CoMP for cell-edge users after accounting for the overhead. As a by-product, the backhaul load is also reduced significantly." @default.
- W2059197520 created "2016-06-24" @default.
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- W2059197520 date "2012-08-30" @default.
- W2059197520 modified "2023-09-26" @default.
- W2059197520 title "Transmission Mode Selection for Downlink Coordinated Multi-Point Systems" @default.
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- W2059197520 doi "https://doi.org/10.48550/arxiv.1208.6360" @default.
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