Triple-Polarized Multi-User Mimo-Idma System under Correlated Fading Channel - Circuits and Systems

CS > Vol.7 No.8, June 2016

Triple-Polarized Multi-User Mimo-Idma System under Correlated Fading Channel ()

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DOI: 10.4236/cs.2016.78141 1,586 Downloads 2,420 Views Citations

Author(s)

B. Partibane¹, V. Nagarajan²

Affiliation(s)

¹Department of ECE, SSN College of Engineering, Chennai, India.
²Department of ECE, Adhiparasakthi Engineering College, Melmaruvathur, India.

ABSTRACT

A multiple-input multiple-output interleave division multiple access (MIMO-IDMA) system with Triple Polarized Division Multiplexing (TPDM) is presented in this paper. The present methodology replaces three independent linearly polarized antennas with a single triple polarized antenna at both the transmitter and receiver. The users in the communication link are accommodated and separated using a user-specific interleaver combined with low rate spreading sequence. To eliminate the effects of multi-stream interference (MSI), minimum mean square error (MMSE) algorithm based on successive interference cancellation (SIC) Multi-user detection (MUD) technique is employed at the receiver. Furthermore, log-maximum a posteriori probability (MAPP) decoding algorithm is implemented at the mobile stations (MSs) to overcome the effects of multi-user interference (MUI) effects. The paper also evaluates the effects of coded MIMO-IDMA in the downlink communication by adopting the Stanford University Interim (SUI) and Long-term Evolution (LTE)channel model specifications. In comparison with the traditional uncoded system, the present solution considering turbo coded triple-polarized MIMO-IDMA system with iterative decoding algorithm provides better bit error rate (BER) with reduced signal to noise ratio (SNR). The simulation results also show that though the SNR requirement is higher for the proposed technique compared to the conventional uni-polarized antenna based MIMO-IDMA system, it gives the advantages of achieving higher data rate with reduced cost and space requirements in the context of a downlink (DL).

KEYWORDS

Interleave Division Multiple Access (IDMA), Multiple Input Multiple Output (MIMO), Multi-User Interference (MUI), Stanford University Interim (SUI) Channel Model, Long Term Evolution (LTE) Channel Model

Share and Cite:

Partibane, B. and Nagarajan, V. (2016) Triple-Polarized Multi-User Mimo-Idma System under Correlated Fading Channel. Circuits and Systems, 7, 1623-1634. doi: 10.4236/cs.2016.78141.

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