Cẩm nang dữ liệu không dây P14

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Cẩm nang dữ liệu không dây P14

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ESTIMATING AIRLINK CAPACITY: PACKET SYSTEMS The number of variables in a packet switched data radio system are virtually endless. This does not mean that the task of estimating user capacity is hopeless. Directionally accurate but labor-intensive results can be derived if one knows the basic conditions under which the data transfers occur. This most assuredly includes assumptions about the communications software being employed. Examples of the necessary effort are shown here by comparing ARDIS RD-LAP to CDPD. The all-important application example will be the 30-character inbound message whose CDPD component was captured in Appendix C....

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