Terminal 1

NAV (EIFS)

Terminal 2 Terminal 1

DATA − pot. reduz.

ACK − pot. reduz.

RTS − max. pot.

CTS − max. pot.

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P _{N EC}

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Zona de Detecção de Portadora - RTS

1 2 3

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Zona de Recepção - Data

Zona de Detecção de Portadora - DATA

Canal livre para transmissão

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NAV (EIFS)

Terminal 2 Terminal 1

DATA − pot. reduz.

ACK − pot. reduz.

RTS − max. pot.

CTS − max. pot.

P M AX

P R

G 12

P R = G 12 P M AX

RXT hresh 2

RXT hresh 2

P N EC = RXT hresh 2 G 12

G 12

P N EC = RXT hresh 2

P R P M AX

RXT hresh 2

P N EC

P M AX

F

P M AX

F = RXT hresh 2 P R

F

F

P M AX

Zona de Recepção - RTS

Zona de Detecção de Portadora - RTS

1 2 3

Zona de Recepção - Data

Zona de Detecção de Portadora - DATA

Canal livre para transmissão

1 2 3

RTS

CTS

DATA

SIFS ACK

SIFS

SIFS DIFS

Transmissor

DIFS

Receptor

Terminais na Zona de Recepção

Terminais na Zona de Detecção de Portadora

NAV (duração contida no RTS) NAV (duração contida no CTS)

NAV (EIFS) NAV (EIFS)

NAV (EIFS)

P _{M AX}

P _R

G ₁₂

P _R = G ₁₂ P _{M AX}

RXT hresh ₂

RXT hresh ₂

P _{N EC} = RXT hresh ₂ G ₁₂

G ₁₂

P _{N EC} = RXT hresh ₂

P _R P _{M AX}

RXT hresh ₂

P _{N EC}

P _{M AX}

P _{M AX}

F = RXT hresh ₂ P _R

P _{M AX}