摘要
进入 2 0世纪 90年代以来 ,移动通信的发展迅速 ,适应于用户的需要 ,新的移动通信系统技术不断出现 ,从FDMA、TDMA到第三代的CDMA ,以至于 4G的CDMA -OFDM技术 ,每一次的进步都意味着移动通信发展的一个新的飞跃。 2 1世纪是信息大爆炸和技术快速革新的时代 ,顺应这种潮流 ,无线移动通信必将会得到不可估量的发展。我们简要地回顾了无线移动通信的历史 ,对当前标准的制定和技术发展做了研究 ,并讨论了无线移动发展的可能趋势。
Mobile Communication technologies developed very rapidly after 1990. To adapt to the needs of the user, advanced new mobile communication systems appear continuously. Each technology progress means a leap of wireless mobile communication. 21st century is an age of information explosion and technology renovation. Under this condition the wireless mobile markets are witnessing an unprecedented growth. In this paper we briefly review the history of the mobile communication, examine the current progress in standards and technologies, and discuss possible trends for wireless mobile technology.
出处
《电子机械工程》
2002年第5期5-10,18,共7页
Electro-Mechanical Engineering
