Hi ALL, I have looked through the source code of 802.11PCF patch contributed by Anders Lindgren and Andreas Almquist(http://www.sm.luth.se/~dugdale/). And I find some problems. Although they had defined the packet types like: #define MAC_Subtype_Data_CFACK 0x01 #define MAC_Subtype_Data_CFACK_CFPoll 0x03 #define MAC_Subtype_NullFunction 0x04 #define MAC_Subtype_CFACK 0x05 #define MAC_Subtype_CFACK_CFPoll 0x07 I don't see they are really used. Does anyone have the same question? Or haven't I read the source code carefully enough? To implement 802.11PCF completely seems a intensive work of coding. Is there any other implementation of PCF in NS-2? Best regards, HuangWei
