Abstract
This paper presents a correlation reduction precoding scheme for joint decoding in an overloaded multiple input multiple output (MIMO)- orthogonal frequency division multiplexing (OFDM) system. In the overloaded MIMO system, the number of receive antenna elements is less than that of transmit antenna elements. Through joint maximum likelihood (ML) decoding a frequency diversity suppresses the BER degradation owing to the spatial multiplexing of signal streams. On a Rician channel, the correlation among the coded symbols deteriorates the performance of the joint ML decoding. Thus, this paper proposes the precoding scheme that reduces the correlation on the Rician channel. Numerical results obtained through computer simulation show that the proposed scheme improves the BER by a factor of 1/10 on the Rician channel with the Rician factor of 10.
Original language | English |
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Title of host publication | 2014 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2014 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 23-28 |
Number of pages | 6 |
ISBN (Electronic) | 9781479961207 |
DOIs | |
Publication status | Published - 2014 Jan 27 |
Event | 2014 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2014 - Kuching, Sarawak, Malaysia Duration: 2014 Dec 1 → 2014 Dec 4 |
Other
Other | 2014 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2014 |
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Country/Territory | Malaysia |
City | Kuching, Sarawak |
Period | 14/12/1 → 14/12/4 |
ASJC Scopus subject areas
- Artificial Intelligence
- Computer Networks and Communications
- Signal Processing