On the Impact of User Scheduling on Diversity and Fairness in Cooperative NOMA

Yang, L. and Jiang, H. and Ye, Q. and Ding, Z. and Lv, L. and Chen, J. (2018) On the Impact of User Scheduling on Diversity and Fairness in Cooperative NOMA. IEEE Transactions on Vehicular Technology, 67 (11). pp. 11296-11301. ISSN 0018-9545

Full text not available from this repository.

Abstract

In this correspondence paper, we investigate the problem of user scheduling in a cooperative non-orthogonal multiple access (NOMA) system consisting of a base station, a weak user, and K intermediate users. During each transmission, an intermediate user is scheduled to receive its own message and forward the message destined for the weak user. For this type of cooperative NOMA system, a novel scheduling scheme is proposed to achieve full diversity and scheduling fairness simultaneously. With the consideration that all channels experience independent but non-identically distributed Rayleigh fading, outage probabilities of the weak user and the scheduled intermediate user are derived in closed-form expressions. It is theoretically shown that the proposed scheme provides full diversity for both the weak user and the scheduled intermediate user. Furthermore, theoretical results also demonstrate that the proposed scheme schedules each intermediate user with the same probability 1/K, demonstrating that scheduling fairness is also guaranteed.

Item Type:
Journal Article
Journal or Publication Title:
IEEE Transactions on Vehicular Technology
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2200/2202
Subjects:
ID Code:
131052
Deposited By:
Deposited On:
04 Feb 2019 13:50
Refereed?:
Yes
Published?:
Published
Last Modified:
23 Sep 2020 04:59