A Framework for Determining Realistic Capacity Bounds for Distributed Antenna Systems
In the current research on future cellular networks, both classical MIMO concepts, such as schemes achieving spatial diversity or spatial multiplexing, and also virtual MIMO concepts are observed. In the latter, multiple base stations serving different cells are grouped to form distributed antenna systems that can be exploited as large MIMO systems. For example, concepts such as joint detection in the uplink and joint transmission in the downlink can be applied in order to cancel or suppress inter-cell interference. In this paper, we focus on the uplink and introduce a framework to investigate capacity bounds in cellular networks that use conventional single-cell links or employ multi-cell joint detection. We observe both an ideal hexagonal cell setup and also the existing GSM cell setup in downtown Dresden, while initially computing the capacities based on idealistic assumptions, and then successively introducing more and more non-idealistic aspects, to finally obtain a good estimate of performance bounds in a real-world system. The paper illustrates capacity bounds and thus the benefits of distributed antenna systems, as well as the methodology of efficiently and realistically modelling the physical layer of future cellular networks.
Patrick Marsch Shahid Khattak Gerhard Fettweis
Vodafone Chair Mobile Communications Systems Technische Universitat Dresden, Germany
国际会议
2006年IEEE信息理论国际会议(Proceedings of 2006 IEEE Information Theory Workshop ITW06)
成都
英文
571-575
2006-10-22（万方平台首次上网日期，不代表论文的发表时间）