Multicast conserves the network resources efficiently, it is significant to provide multicast mechanism in wireless mobile environment.
组播通信有效地节约了网络资源，在无线移动网络环境中引入组播有着非常重要的意义。
The channel estimation method proposed in the thesis has been successfully applied in practical system, which is able to operate in complex wireless mobile environment with a pragmatic value.
提出的信道估计方法已成功运用于实际系统中，能够工作在复杂的无线移动环境，具有实用价值。
In a mobile environment, this is extremely inefficient because of the amount of time a wireless network would take to exchange this information.
在移动环境中，这是极其低效率的，因为使用无线网络交换这种信息将花费大量的时间。
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