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Bluetooth
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- , . WLAN (Wireless Local Area Networking), .
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Bluetooth. 79 37 ( 2 ) 2,4465-2,4835 [16].
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Bluetooth 2,45 ( , ISM - Industry, Science, Medicine), Bluetooth . (1600 /) . . . . , .
Bluetooth 0,1 . 48- , IEEE 802.
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Bluetooth ERICSSON 1994 . , . , ERICSSON, , . , , , ERICSSON 1998 Bluetooth SIG (Special Interest Group). 2000 , , 3OM, NOKIA, INTEL, NATIONAL SEMICONDUCTOR .
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- () . , . .
luetooth : - SCO (Synchronous Connection Oriented) - ACL (synchronous Connectionless). , SCO, " - " . SCO 64 /. , ACL, . " - ". ACL c 721 /. . 72- . , , . 54- , (, ). , . 0 2745 .
Bluetooth (FHSS - Frequency Hop Spread Spectrum). Bluetooth- 2,4022,480 N . 1 , - 140175 . .
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Bluetooth 2.0 Enhanced Data Rate
EDR (Enhanced Data Rate) Bluetooth 2.0 2004 . , , 3 / ( 2.1 /) [2].
[9]. EDR, 3 / , 1 / (723 /) 1..
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, 1.2.
Bluetooth : Access Code, Header, Payload Inter-Packet Guard Band. 1.2 GFSK (Gaussian frequency-shift keying). +/-160 kHz , . 1/ 1 /. , , , 723 /.
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/4-DQPSK , , 2 .
3 (3/) 8DQPSK (8-phase differential quaternary phase-shift keying). /4-DQPSK, .
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