This algorithm can choose the optimal packet type for data transmission according to average received SNR, and the threshold values for switching packet type were given.

该算法能够根据接收信噪比的不同情况选择最佳的分组类型进行传输，给出了进行分组类型切换的信噪比门限值。

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Packet switching does not require a dedicated line between the sender and recipient.

包交换不需要在发送方和接收方之间使用专用线路。

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Uses packet switching protocol based on frequency hop scheme with 1600 hops/s to enable high performance in noisy radio environments .

在无线电噪声环境里，利用基于每秒1600跳跳频表的分组交换协议可以提高系统性能。

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Packet switching, devised when Baran was a young scientist working for RAND Corp.

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Packet switching got its name thanks to late British scientist Donald Davies who was creating a network that used this technique at the National Physical Laboratory (NPL).

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But the future of telephony probably lies in packet switching.

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