2002 pearson education, inc. commercial use, distribution, or sale prohibited. wireless...
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© 2002 Pearson Education, Inc. Commercial use, distribution, or sale prohibited. 19-cell reuse example (N=19) Figure 3.2 Method of locating co-channel cells in a cellular system. In this example, N = 19 (i.e., I = 3, j = 2). (Adapted from [Oet83] © IEEE.)TRANSCRIPT
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Wireless CommunicationsPrinciples and Practice
2nd EditionT.S. Rappaport
Chapter 3: The Cellular Concept – System Design Fundamentals
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The Cellular Concept
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19-cell reuse example (N=19)
Figure 3.2 Method of locating co-channel cells in a cellular system. In this example, N = 19 (i.e., I = 3, j = 2). (Adapted from [Oet83] © IEEE.)
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Handoffs – the basics
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Umbrella Cells
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Smaller N is greater capacity
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Co-channel cells for 7-cell reuse
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AMPS Duopoly Channels
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Key Definitions for Trunked Radio
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Erlang B Trunking GOS
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Erlang B
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Erlang C
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Cells are split to add channels with no new spectrum usage
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Cell Splitting increases capacity
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Sectoring improves S/I
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Sectoring improves S/I
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In-building deployment is the next great growth phase
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The Zone Cell Concept
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Zone Cell Concept