Hi Basil, I believe a multi channel "single interface" mac implementation for 802.11 is available in the NIST addon for ns-2 (mobility package). You can find documentation related to it from http://w3.antd.nist.gov/seamlessandsecure/files/mobility/doc/MAC802_11.pdf You can download it from http://w3.antd.nist.gov/seamlessandsecure/download.html Hope it helps. -Deepansh
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