期刊
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
卷 10, 期 10, 页码 3298-3309出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TWC.2011.11.101551
关键词
Interference modeling; capacity analysis; multiple-input multiple-output (MIMO); cooperative transmission; co-channel interference
资金
- RCUK
- National Natural Science Foundation of China (NSFC) [60872007]
- National 863 High Technology Program of China [2009AA01Z239]
- Ministry of Science and Technology (MOST), China [0903]
- Scottish Funding Council for the Joint Research Institute in Signal and Image Processing with the University of Edinburgh
- Key Laboratory of Cognitive Radio and Information Processing (Guilin University of Electronic Technology), Ministry of Education
- EPSRC [EP/G042713/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/G042713/1] Funding Source: researchfish
Characterization and modeling of co-channel interference is critical for the design and performance evaluation of realistic multi-cell cellular networks. In this paper, based on alpha stable processes, an analytical co-channel interference model is proposed for multi-cell multiple-input multi-output (MIMO) cellular networks. The impact of different channel parameters on the new interference model is analyzed numerically. Furthermore, the exact normalized downlink average capacity is derived for a multi-cell MIMO cellular network with co-channel interference. Moreover, the closed-form normalized downlink average capacity is derived for cell-edge users in multi-cell multiple-input single-output (MISO) cooperative cellular networks with co-channel interference. From the new co-channel interference model and capacity formulas, the impact of cooperative antennas and base stations on cell-edge user performance in the multi-cell multi-antenna cellular network is investigated by numerical methods. Numerical results show that cooperative transmission can improve the capacity performance of multi-cell multi-antenna cooperative cellular networks, especially in a scenario with a high density of interfering base stations. The capacity performance gain is degraded with the increased number of cooperative antennas or base stations.
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