A system and method for achieving enhanced CSMA/CA which improves channel availability and quality of service (QoS) in a wireless communications network, such as an ad-hoc wireless communication network. The system and method are capable of establishing channels to enable communication between nodes in a communication network, such as a wireless ad-hoc communication network, based on the relationship between the average time length of message data packets and the time lengths of the request to send and clear to send messages. The system and method further control a node of the communication network to place a data packet at a location in a queue for retransmission based on a type of information contained in the data packet if the destination node for which the data packet is intended is unable to receive the data packet. The location in the queue is indicative of a duration of time that the node will delay before attempting to resend the data packet to the destination node. The duration of time is shorter when the information includes voice data than when the information includes no voice data. Also, while the data packet is in the queue, the system and method control the node to refrain from sending other data packets to the destination node, while also allowing the node to send another data packet to another destination node.
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