求翻译：机动通信网一直是武警部队信息化建设的热点，基于802.11协议无线局网的出现与发展更是极大的提高了武警机动通信网的实用性。随着部队职责使命的拓展，部队作战环境愈来愈复杂，对的无线通信提出了更高要求，这就包括了在保证通信质量的前提下延长通信距离，拓宽通信范围，实现远距离快速组网，高速通信。本文的目的在于设计出既能保证通信质量又能延长通信距离的远距离无线局域网通信系统。是什么意思？

The mobile communications network has been the hot spots of the information construction of the Armed Police Force, the emergence and development of the wireless LAN network based on 802.11 protocol greatly improves the practicality of the armed police mobile communications network. With the expansi