面向未来的个人手持电话系统数据业务研究

Simulation and research on future PHS data service

随着PHS语音业务市场渐趋饱和,数据业务研究的重要性凸现。详细介绍了应用实时操作系统实现PHS系统数据业务仿真系统的方法。在此基础上研究未来PHS数据业务应用高阶调制和纠错码技术后的传输性能,给出了仿真结果并进行对比分析,得出了通过联合链路层ARQ与物理层自适应调制与编码以提高数据传输性能的方法,同时,探讨了进一步研究的方向。

The research of PHS data service is becoming more and more importance due to being saturation of PHS voice service market. The attention is focused on PHS data service simulation system which is implemented with RTOS. Based on it, the performance of future PHS data service which applies high rank modulation and error control encoding technology is studied. The emulation result is presented and compared. The conclusion that the data transmission performance is improved by joining ARQ in data-link layer with adaptive modulation and encoding in physical layer is drawn. At last, further researching direction is discussed.