Evaluation of base station diversity system for reliable multicast delivery

K. Naito
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引用次数: 1

Abstract

This paper proposes the reliable multicast delivery system with a base station diversity technique for the cellular system. Previous studies of reliable multicast methods considered a single wireless link communication. Moreover a received signal intensity declines as the distance from a base station becomes long in the cellular network. Therefore the low received signal intensity causes many transmission errors in the cell boundary area. Furthermore, the multi-path fading causes the dynamic fluctuation of the received signal intensity. The phenomenon also deteriorates the transmission error performance. On the contrary, the feature of the proposed system is to examine the use of multiple wireless links and to improve the transmission performance. Each wireless terminal communicates with some neighbor base stations, and combines the frame information from different base stations. Numerical results demonstrate that the proposed system can achieve the multicast data delivery with a smaller amount of cellular wireless resources and with the shorter transmission period
基站分集系统的可靠组播传输评估
提出了一种基于基站分集技术的蜂窝系统可靠组播传输系统。以往对可靠组播方法的研究考虑了单个无线链路通信。此外,接收到的信号强度随着蜂窝网络中与基站的距离变长而下降。因此,接收到的信号强度低,在小区边界区域产生了很多传输误差。此外,多径衰落还会引起接收信号强度的动态波动。这种现象也使传输误差性能恶化。相反,提出的系统的特点是检查使用多个无线链路和提高传输性能。每个无线终端与一些相邻的基站通信,并将来自不同基站的帧信息组合在一起。数值结果表明,该系统可以在较少的蜂窝无线资源和较短的传输周期内实现组播数据传输
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