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Research on the improved cooperative cellular system capacity

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Recently, the multi-hop cellular networks have been widely studied in order to enhance the cell performances such as the cell capacity.While most of these works merely use the multi-hop methods instead of direct transmission without considering the co-channel inter-cell interference, signal transmission mode and the effects of the number of antennas.With the consideration of above important elements, this paper proposed an improved cellular system with multi-relay amplifies-andforward (AF) cooperative transmission scheme and the corresponding capacity expression is derived under the corresponding environment.By using the potential space diversity and selecting relays based on maximizing the capacity, the cellular system capacity can be improved effectively.The simulation results show that with the assistance of optimal selected relays, the improved cooperative cellular system capacity with multi-relay AF transmission scheme performs better than single-hop cellular system.

cooperative schemeamplifies-and-forward (AF) transmissioncellular systemsystem capacity

CHEN Hui-min、XIE Wei-hao、WANG Liang、WU Zhuo、JIN Yan-liang

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Key Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, Shanghai 200072, P. R. China

Shanghai Leading Academic Discipline ProjectScience and Technology Commission of Shanghai MunicipalityShanghai Pujiang ProgramGraduate Student Innovation Foundation of Shanghai University

S3010808DZ223110008PJ14057SHUCX080151

2011

10.1007/s11741-011-0697-1

上海大学学报(英文版)
上海大学

上海大学学报(英文版)

影响因子：0.196
ISSN：1007-6417
年,卷(期)：2011.15(2)
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