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An ad-hoc network infrastructure for CDMA based IEEE 802.11 is proposed. In CDMA, multipackets can be transited and received at the same time. This is an architecture that combines the ad-hoc and infrastructure network in CDMA based IEEE 802.11 to transit packets more efficiently in a wireless network. Nodes that cannot make contact with base stations due to severe signal degradation and unstable wireless channels can make contact using an ad-hoc based routing protocol via a multihop path. We propose a relay mechanism called the relay routing protocol for incapable nodes. It can contact the base station via a multihop path and communicate with other mobile hosts.