COLLABORATIVE SPECTRUM SENSING IN COGNITIVE RADIO NETWORK

摘要

A method and system for collaborative spectrum sensing in a cognitive radio network is provided. The method may include: receiving through a cognitive radio network a plurality of sensing results of availability of a channel, where the plurality of sensing results are generated by a corresponding number of vehicles within the cognitive radio network, respectively, where broadcasting of the plurality of sensing results is controlled based on positions of vehicles within the cognitive radio network; and determining whether the channel is available based on the plurality of sensing results. By using the method, the efficiency of collaborative spectrum sensing can be improved.

主权项

1. A method for collaborative spectrum sensing in a cognitive radio network, the method comprising:
a first vehicle generating a request for assistance with respect to sensing the availability of a channel; the first vehicle broadcasting in a cognitive radio network the request and position information of the first vehicle; the first vehicle receiving a plurality of sensing messages from other vehicles within the cognitive radio network, where the sensing messages are generated in response to the request, where a sensing message comprises a sensing result with respect to the availability of the channel and a piece of position information of a particular vehicle broadcasting the sensing message, where the broadcasting of the plurality of sensing messages is controlled based on position information of vehicles within the cognitive radio network; and determining whether the channel is available based on the plurality of sensing messages.