Many cell phones allow users to surf the Web, but only some newer ones are capable of wireless connection to the localarea computer network.
许多手机允许用户上网，但只有一些较新的手机能够无线连接到本地计算机网络。
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It USES Radio Frequency technology, instead of old localareanetwork with twisted-pair copper wire, and makes the wirelesslocalareanetwork use simple architecture which allows users to access.
In wireless sensor networks, the users often submit spatial window queries to obtain the summary information of a localarea in the network such as maximum temperature, average humidity, et al.