Joint User and Relay Selection for Cooperative NOMA Networks
Open Access
- 12 September 2017
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Access
- Vol. 5 (99), 20220-20227
- https://doi.org/10.1109/access.2017.2751503
Abstract
This paper investigates the joint user and relay selection algorithm for cooperative non-orthogonal multiple access (NOMA) networks, where multiple users transmit messages to two destinations by utilizing multiple amplify-and-forward (AF) relays. To improve the outage performance of system, an optimal selection criterion is proposed at the user-relay pairs. We derive the closed-form analytical expressions on the outage probability, as well as the asymptotic expressions for large transmission power. Based on the derived analytical expressions, the effect of the number of relays and the target data rate on the outage performance are revealed. Results indicate that when the target data rate becomes small enough, the diversity order of the outage probability equals to the number of relays, while the target data rate grows without bound, the outage probability achieves one.Keywords
Funding Information
- Science and Technology Program of Guangzhou, China (201707010389)
- Scientific Research Project of Guangzhou Municipal University (1201620439)
- Qingshanhu Young Scholar Program in GZPYP (2016Q001)
- Comba Research Funds (JX-PYP-201501, H2017007)
- Sichuan International Science and Technology Cooperation Project (2017HH0035)
- National Natural Science Foundation of China (61501382)
- Fundamental Research Funds for the Central Universities (2682015RC20, 2682016CY22)
- Science and Technology Planning Key Project of Guangdong (2016B010124014)
- National Natural Science Foundation of China (61471229, 61772007)
- Innovation Improvement Project for Universities (2015KTSCX040)
- Natural Science Foundation of Guangdong (2014A030306027)
- Guangzhou University’s 2017 Training Program for Young Top-Notch Personnels (BJ201702)
This publication has 27 references indexed in Scilit:
- Relay Selection for Cooperative NOMAIEEE Wireless Communications Letters, 2016
- Full Diversity Uncoordinated Cooperative Transmission for Asynchronous Relay NetworksIEEE Transactions on Vehicular Technology, 2016
- Secrecy Sum Rate Maximization in Non-orthogonal Multiple AccessIEEE Communications Letters, 2016
- Secrecy Outage Probability of Optimal Relay Selection for Secure AnF Cooperative NetworksIEEE Communications Letters, 2015
- Secure communications in multiple amplify‐and‐forward relay networks with outdated channel state informationTransactions on Emerging Telecommunications Technologies, 2015
- Capacity Analysis of Cooperative Relaying Systems Using Non-Orthogonal Multiple AccessIEEE Communications Letters, 2015
- Cooperative Non-Orthogonal Multiple Access in 5G SystemsIEEE Communications Letters, 2015
- Outage performance of orthogonal space–time block coded amplify‐and‐forward two‐way relay networksIET Communications, 2015
- Distributed space-time block codes with embedded adaptive AAF/DAF elements and opportunistic listening for multihop power line communication networksInternational Journal of Communication Systems, 2015
- Finite Feedback MIMO Precoding for the Two-Way Amplify-and-Forward Relay NetworkIEEE Communications Letters, 2014