Research Article
On the Feasibility of High Speed Railway mmWave Channels in Tunnel Scenario
Figure 19
(a) Results of and in the Direc.-Direc. case at 32.5 GHz. Two fitted lines describe the variation tendencies for and , respectively. (b) CDFs of in different antenna setups and regions at whole frequencies. (c) CDFs of in different antenna setups and regions at whole frequencies.
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