Wireless Mobile Evolution to 4G Network

• 作者: Mohammed Jaloun Zouhair Guennoun
• 来源期刊: 无线传感网络(英文)
• 学科: 工学
• 关键词: 4G OFDM MIMO
• 年，卷（期）: 2010,（4）
• 页码范围: 309-317
• 页数: 9页
• 分类号: TN92

摘要

In this paper, we give an overview of the evolution of wireless mobiles starting from the first generation which is the analogue system started in 1980’s, and passing through the 2G technologies which are all digital networks and GSM is the most popular network. 2.5G networks will introduce the packet notion on the existing 2G networks and 3G will bring the quality of service as new perspective for the 3G partnership projet 3GPP and 3GPP2. However, high demand on data speed has pushed the operators to looking for 3.5G system. 3.99G networks are defined as long-term evolution for the existing 3G network and it will be based on OFDM and MIMO technologies. 4G networks was not yet defined, but requirement is to support heterogeneous networks at 100 Mbps mobility data speed.