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A mobile terminal samples signals from four BSs as a function of time. The times and signal strengths (in dBm) from the samples are given in the following table. The mobile makes handoff decisions by considering the signals from the BSs at each sampling time. Determine which base station the mobile is associated with at each sampling time using the following criteria. If a condition is met for more than one BS, assume the best one (strongest RSS) is selected. i. RSS + threshold of -55 dBm ii. RSS + hysteresis of 3 dBm + threshold of -55dBm

A mobile terminal samples signals from four BSs as a function of time. The times and signal strengths (in dBm) from the samples are given in the following table. The mobile makes handoff decisions by considering the signals from the BSs at each sampling time. Determine which base station the mobile is associated with at each sampling time using the following criteria. If a condition is met for more than one BS, assume the best one (strongest RSS) is selected. i. RSS + threshold of -55 dBm ii. RSS + hysteresis of 3 dBm + threshold of -55dBm

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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c. A mobile terminal samples signals from four BSs as a function of time. The times and signal strengths (in dBm) from the samples are given in the following table. The mobile makes handoff decisions by considering the signals from the BSs at each sampling time. Determine which base station the mobile is associated with at each sampling time using the following criteria. If a condition is met for more than one BS, assume the best one (strongest RSS) is selected. i. RSS + threshold of -55 dBm 11. RSS + hysteresis of 3 dBm + threshold of –55dBm Time(s) 0 BS1 2.5 5 7.5 10 12.5 15 17.5 20 -47 -57 -52 -55 -60 -62 -60 -65 -64 BS2 -59 -56 -55 -54 -52 -51 -49 -60.5 -52 BS3 BS4 -70 -72 -75 -70 -58 -50 -60.5 -62 -75 -72 -71 -65 -60 -55 -53 -40 -49 -56 d. What is the key idea used in OFDM to overcome the intersymbol interference problem resulting from high data rate transmission?
Transcribed Image Text:c. A mobile terminal samples signals from four BSs as a function of time. The times and signal strengths (in dBm) from the samples are given in the following table. The mobile makes handoff decisions by considering the signals from the BSs at each sampling time. Determine which base station the mobile is associated with at each sampling time using the following criteria. If a condition is met for more than one BS, assume the best one (strongest RSS) is selected. i. RSS + threshold of -55 dBm 11. RSS + hysteresis of 3 dBm + threshold of –55dBm Time(s) 0 BS1 2.5 5 7.5 10 12.5 15 17.5 20 -47 -57 -52 -55 -60 -62 -60 -65 -64 BS2 -59 -56 -55 -54 -52 -51 -49 -60.5 -52 BS3 BS4 -70 -72 -75 -70 -58 -50 -60.5 -62 -75 -72 -71 -65 -60 -55 -53 -40 -49 -56 d. What is the key idea used in OFDM to overcome the intersymbol interference problem resulting from high data rate transmission?
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