An energy aware resource allocation for cognitive radio OFDMA systems
by Xiaomao Chen; Shan Ouyang; Ziqiang Chen
International Journal of Communication Networks and Distributed Systems (IJCNDS), Vol. 13, No. 3/4, 2014

Abstract: Multi-user orthogonal frequency division multiple access (OFDMA) network adaptive resource allocation is proposed. Subcarriers are assigned to each user in a way that ensures better spectrum efficiency; everyone is allocated power with quality of service (QoS) guarantees, while users' minimum rate requirements are met. Optimum transmit power of user is obtained by Lagrange method, validity of the time-share and corresponding hard mapping method are verified by simulation, the proposed algorithm can adapt allocate resource, minimising total transmit power.

Online publication date: Sat, 13-Sep-2014

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Communication Networks and Distributed Systems (IJCNDS):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email