Publication: Index modulation aided uplink noma for massive machine type communications
Program
KU-Authors
KU Authors
Co-Authors
Shahab, Muhammad Basit
Johnson, Sarah J.
Shirvanimoghaddam, Mahyar
Chafii, Marwa
Dohler, Mischa
Advisor
Publication Date
Language
English
Type
Journal Title
Journal ISSN
Volume Title
Abstract
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.
Description
Source:
IEEE Wireless Communications Letters
Publisher:
IEEE-Inst Electrical Electronics Engineers Inc
Keywords:
Subject
Computer science, Information systems, Engineering, Electrical, Electronic, Telecommunications