Apparatus and method for self-scheduling in a wireless communication system

摘要

The present disclosure provides channel sensing in an efficient manner in a cognitive radio MAC protocol and improves channel utilization. Proposed is an Adaptive Channel Sensing (ACS) for variably sensing a channel in accordance with a Fixed Channel Sensing (FCS) and a channel state so as to perform the channel sensing in an efficient manner while reducing the power consumption of a terminal. Further proposed is a self-scheduling mechanism which enables multiple terminals to simultaneously transceive data by means of a slot-based contention on the basis of the results of the FCS and ACS, which are proposed by the present disclosure.

主权项

1. A self-scheduling method in a Cognitive Radio (CR) system, the method comprising:
transmitting data on different channels during the same transmission interval of one frame by one or more secondary users, wherein the frame includes an idle interval, a sensing and sharing interval, a slotwise contention interval, and the transmission interval, wherein the number of channels is equal to the number of slots, and wherein, during the sensing and sharing interval, the secondary users sense channels of primary users and share the sensed results.