Data Communication Summary Project/Chapter11

Contents

1. 11�� 개(Fixed Wireless Technology

1.1. Fixed Wireless Technology

1.2. Wireless Local Loop

1.2.1. point-to-point

1.2.1.1. Point-To-Point Microwave
1.2.1.2. P-To-P Microwave Technologies
1.2.1.3. Free Space Optics(Laser)
1.2.1.4. Optical Networking

1.2.2. multipoint

1.2.2.1. Spread Spectrum

1.2.2.2. MMDS

1.2.2.3. LMDS

1.2.2.3.1. Competing Local Loop Tech.

1. 11�� 개(Fixed Wireless Technology ¶

�� 고�� 기�� .(��국��...etc.)
�� + ��

1.1. Fixed Wireless Technology ¶

�� 기��과 �� 경��계
�� 거�� . ��
- �� 경�� 간�� 거��기 ��까�� 1000��(��)까�� 게 �� . �� (Local Loop)�� . �� 기 �� ...;;
�� - �� + ��TV
- ��(�� ) �� TV �� 고 ��게 �� .

1.2. Wireless Local Loop ¶

�� 고 �� .
- �� 기�� 거�� .
point-to-point ��과 multipoint �� .

1.2.1. point-to-point ¶

��고 �� . �� 극�� 걸�� .

1.2.1.1. Point-To-Point Microwave ¶

1.2.1.2. P-To-P Microwave Technologies ¶

1.2.1.3. Free Space Optics(Laser) ¶

1.2.1.4. Optical Networking ¶

1.2.2. multipoint ¶

��기�� 거�� 구�� base station 과 ��결�� 고 기�� 공�� .
�� 11.1 ��고��길.315�� .

1.2.2.1. Spread Spectrum ¶

�� 급�� wireless local loop system�� , 과��, �� (ISM band) �� . �� IEEE 802.11b �� 기�� .
�� 기 �� 구�� . �� 구�� 그�� 각�� 고 ��기 �� .
8km 까�� . �� 11Mbps�� multipoint �� 공��기 �� 2~6Mbps ��.

1.2.2.2. MMDS ¶

Multipoint Multichannel Distribution System �� .
1970�� 45Km ��까�� TV �� 경��기 �� TV �� 개��.

1.2.2.3. LMDS ¶

1.2.2.3.1. Competing Local Loop Tech. ¶

2. Summary ¶

고�� 기�� 거 고객��게 �� 간��고 값�� .
�� 국�� ISM �� 고, �� IEEE 802.11 �� 기��기�� .
MMDS�� LMDS�� 고�� . MMDS�� 길��, �� 고 ��고, LMDS�� , �� 고 ��.
�� 고, �� 고�� 공��. �� 거�� .

DataCommunicationSummaryProject

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