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首页> 外文期刊>Wireless Communications Letters, IEEE >Full-Duplex Cloud Radio Access Networks: An Information-Theoretic Viewpoint
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Full-Duplex Cloud Radio Access Networks: An Information-Theoretic Viewpoint

机译：全双工云无线电接入网：信息论的观点

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The conventional design of cellular systems prescribes the separation of uplink and downlink transmissions via time-division or frequency-division duplex. Recent advances in analog and digital domain self-interference interference cancellation challenge the need for this arrangement and open up the possibility to operate base stations, particularly low-power ones, in a full-duplex mode. As a means to cope with the resulting downlink-to-uplink interference among base stations, this letter investigates the impact of the Cloud Radio Access Network (C-RAN) architecture. The analysis follows an information theoretic approach based on the classical Wyner model. The analytical results herein confirm the significant potential advantages of the C-RAN architecture in the presence of full-duplex base stations, as long as sufficient fronthaul capacity is available and appropriate mobile station scheduling, or successive interference cancellation at the mobile stations, is implemented.
机译：蜂窝系统的常规设计规定了经由时分或频分双工的上行链路和下行链路传输的分离。模拟和数字域自干扰干扰消除的最新进展挑战了这种布置的需求，并开辟了以全双工模式操作基站（尤其是低功率基站）的可能性。作为应对基站之间产生的下行链路到上行链路干扰的一种方式，这封信调查了云无线电接入网（C-RAN）体系结构的影响。该分析遵循基于经典Wyner模型的信息理论方法。本文的分析结果证实了在存在全双工基站的情况下C-RAN体系结构的显着潜在优势，只要有足够的前传容量可用并且在移动台上实施了适当的移动台调度或连续的干扰消除即可

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