Contention arbitration using code division multiplexing

The invention discloses contention arbitration using code division multiplexing. An access wireless medium is used for controlling based on contention arbitration. A specific amount of wireless equipment is allowed to contend a transmission opportunity. Requests from the wireless equipment are processed on the basis of codes included in the requests. Winning wireless equipment of the access wireless medium is indicated by transmitting a contention arbitration message. In certain embodiments, the codes in the requests are selected from an orthogonal code set or a pseudo-orthogonal code set.