Journal
IEEE COMMUNICATIONS LETTERS
Volume 19, Issue 8, Pages 1462-1465Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LCOMM.2015.2441064
Keywords
Non-orthogonal multiple access (NOMA); cooperative multiple access; 5G communications
Categories
Funding
- UK EPSRC [EP/L025272/1]
- National Natural Science Foundation of China [61222103]
- National Basic Research Program of China (973 Program) [2013CB336600]
- U. S. National Science Foundation [CNS-1456793, ECCS-1343210]
- Direct For Computer & Info Scie & Enginr
- Division Of Computer and Network Systems [1456793, GRANTS:13675676] Funding Source: National Science Foundation
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Non-orthogonal multiple access (NOMA) has received considerable recent attention as a promising candidate for 5G systems. A key feature of NOMA is that users with better channel conditions have prior information about the messages of other users. This prior knowledge is fully exploited in this letter, where a cooperative NOMA scheme is proposed. The outage probability and diversity order achieved by this cooperative NOMA scheme are analyzed, and an approach based on user pairing is also proposed to reduce system complexity.
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