Selected Topic1

1 Selected Topics in Telecommunication Engineering I

504460

8 2558 .

Wireless Communication

2

() (The cellular concept

and frequency planning )

: (Mobile radio propagation I: Large scale path loss )

: (Mobile radio propagation II: Multipath and small scale fading )

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() (Modulation

techniques for mobile communications)

(Channel coding for Wireless communications)

(Introduction to Wireless networking)

(Introduction to some wireless communications standards)

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T.S. Rappaport, Wireless Communications, 2nd

Edition, Pearson Education. 2002.

W.C.Y. Lee, Mobile Cellular Telecommunications, 2nd Edition, McGraw Hill, 1995.

Kamilo Feher, Wireless Digital Communications: Modulation and Spread Spectrum Applications, Prentice Hall, 2002.

5

6

? (voice) (data)

1. (information) voice data ()

2.

3.

7

120 kHz

3 A B

40 kHz

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Mobile

Cellular phone(GSM/CDMA2000.1x) Portable

IEEE 802.11b (Wifi) IEEE 802.15.3 (UWB)

Fixed IEEE 802.16 (Wireless MAN WiMAX) WiMAX http://en.wikipedia.org/wiki/IEEE_802.16

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!

!

!

!

!

WiMAX http://www.vcharkarn.com/varticle/17947

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11

WiMAX (4G)!

!

!

!

http://www.vcharkarn.com/varticle/17947 http://www.nstda.or.th/nstda-knowledge/5818-wimax

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FM radio 88 MHz TV Broadcast 200 MHz ( https://

broadcast.nbtc.go.th/data/academic/file/560500000007.pdf) GSM Phones (Global System for Mobile) 900 MHz GPS (Global Positioning System) 1.2 GHz PCS phones (Personal Communication Services) 1800

MHz Bluetooth 2.4 GHz WiFi 2.4 GHz

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14

15

config Auto config

16

(2)

(Roaming)

17

(3)

(Roaming)

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(4)

Wifi Bluetooth GSM

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20

(2) (QoS)

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