Research on the improved cooperative cellular system capacity

• Published in: Journal of Shanghai University Vol. 15; no. 2; pp. 85 - 88
• Main Author: 陈惠民 解维浩 王亮 武卓 金彦亮
• Format: Journal Article
• Language: English
• Published: Heidelberg Shanghai University Press 01.04.2011; Key Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, Shanghai 200072, P. R. China
• Subjects: Amplification; Antennas; Cellular; Cellular communication; Classical Mechanics; Engineering; Environment; Information Technology; Interference; Life Sciences; Materials Science; Mathematical and Computational Engineering; Mechatronics; Optimization; Signal transmission; Simulation; 信号传输方式; 合作计划; 小区间干扰; 电池容量; 电池性能; 自动对焦系统; 蜂窝系统; 蜂窝网络; cooperative scheme; amplifies-and-forward (AF) transmission; cellular system; system capacity
• ISSN: 1007-6417; 1863-236X
• DOI: 10.1007/s11741-011-0697-1

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.