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Performance Enhancement of Downlink NOMA by Combination With GSSK
- Issue Date
- Oct-2018
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Non-orthogonal multiple access (NOMA); generalized space shift keying (GSSK); spectral efficiency; energy efficiency; computational complexity
- Citation
- IEEE WIRELESS COMMUNICATIONS LETTERS, v.7, no.5, pp.860 - 863
- Journal Title
- IEEE WIRELESS COMMUNICATIONS LETTERS
- Volume
- 7
- Number
- 5
- Start Page
- 860
- End Page
- 863
- ISSN
- 2162-2337
- Abstract
- In non-orthogonal multiple access (NOMA), cell-edge users experience significantly low spectral density because only part of the total transmit power is allocated. This leads to low spectral efficiency for the paired users in NOMA. To overcome this problem, we propose an integration of NOMA and generalized space shift keying (GSSK), called NOMA-GSSK, to improve the spectral efficiency by exploiting the spatial domain. Spectral and energy efficiency, bit error rate, and computational complexity of the proposed system were analyzed and compared to those of multiple-input multiple-output NOMA (MIMO-NOMA). It is shown that NOMA-GSSK outperforms MIMO-NOMA.
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Related Researcher
- SHIN, SOO YOUNG
- College of Engineering (School of Electronic Engineering)