229 / 2016-01-20 18:47:49

Relay cognitive Radio Transmission

Cognitive , Relay

A cognitive radio is an intelligent radio that can be programmed and configured dynamically. Its transceiver is designed to use the best wireless channels in its vicinity. Such a radio automatically detects available channels in wireless spectrum, then accordingly changes its transmission or reception parameters to allow more concurrent wireless communications in a given spectrum band at one location. This process is a form of management. In cognitive networks, the cooperative transmission between primary user and secondary user has been regarded as an effective method to promote acrimonious coexistence between themselves where how to balance user’s benefits and improve the system throughput is a key issue. This project study’s the joint pricing and power allocation strategy for the cognitive relay transmission by using the Stackelberg model which is a classical dynamic game model and then investigate the primary benefits in power saving during this cooperation. According to the profits of primary user (as a game leader) and secondary user (as a follower), corresponding utility functions which describe their overall profits in the cognitive relay transmission are derived. Then, optimal strategies for interference pricing and power allocation are fixed by resolving the objective functions.