- Title
- Index modulation aided uplink NOMA for massive machine type communications
- Creator
- Shahab, Muhammad Basit; Johnson, Sarah J.; Shirvanimoghaddam, Mahyar; Chafii, Marwa; Basar, Ertugrul; Dohler, Mischa
- Relation
- IEEE Wireless Communications Letters Vol. 9, Issue 12, p. 2159-2162
- Publisher Link
- http://dx.doi.org/10.1109/lwc.2020.3015920
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Resource Type
- journal article
- Date
- 2020
- Description
- Single-carrier frequency-division multiple access (SC-FDMA) based index modulation (IM), referred here as SC-IM, allows users to implicitly transmit a part of their data bits by switching on some of their allocated subcarriers, followed by M-ary constellation symbols transmission over the activated subcarriers. This sparse use of subcarriers provides better energy efficiency and error rate. Using these benefits, this letter exploits SC-IM with uplink power domain non-orthogonal multiple access (NOMA), where all users with the same allocated subcarrier set can simultaneously transmit their SC-IM data with different power levels, which are exploited by the receiver to perform multi-user detection. Performance of the proposed technique is analyzed and compared with conventional NOMA. It is shown that the proposed scheme can achieve energy efficient massive connectivity, which is a primary requirement for massive machine-type communications.
- Subject
- index modulation (IM); non-orthogonal multiple access (NOMA); single-carrier frequency-division multiple access (SC-FDMA); massive machine-type communications (mMTC); SDG 7; Sustainable Development Goals
- Identifier
- http://hdl.handle.net/1959.13/1436444
- Identifier
- uon:40027
- Identifier
- ISSN:2162-2337
- Language
- eng
- Full Text
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