Analysis on the Performance Degradation of MIMO-OFDM Receiver and Hybrid Interference Cancellation with Low Complexity for the Performance Improvement Under High-Mobility Condition 


Vol. 32,  No. 2, pp. 95-112, Feb.  2007


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  Abstract

Spatial Multiplexing techniques, which is a kind of Multiple antenna techniques, provide high data transmission rate by transmitting independent data at different transmit antenna with the same spectral resource. OFDM (Orthogonal Frequency Division Multiplexing) is applied to MIMO (Multiple-Input Multiple-Output) system to combat ISI (Inter-Symbol Interference) and frequency selective fading channel, which degrade MIMO system performance. But, orthogonality between subcarriers of OFDM can't be guaranteed under high-mobility condition. As a result, severe performance degradation due to ICI is induced. In this paper, both ICI and CAI (Co-Antenna Interference) which occurs due to correlation between multiple antennas, and performance degradation due to both ICI and CAI are analyzed. In addition to the proposed CIR (Channel Impulse Response) estimation method for avoiding loss in data transmission rate, HIC (Hybrid Interference Cancellation) approach for guaranteeing QoS of MIMO-OFDM receiver is proposed. We observe the results on analytical performance degradation due to both ICI & CAI are coincide with the simulation results and Performance improvement due to HIC are also verified by simulation under SCM-E Sub-urban Macro MIMO channel.

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  Cite this article

[IEEE Style]

S. Kang, K. Kim, K. Chang, "Analysis on the Performance Degradation of MIMO-OFDM Receiver and Hybrid Interference Cancellation with Low Complexity for the Performance Improvement Under High-Mobility Condition," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 2, pp. 95-112, 2007. DOI: .

[ACM Style]

SeungWon Kang, KyooHyun Kim, and KyungHi Chang. 2007. Analysis on the Performance Degradation of MIMO-OFDM Receiver and Hybrid Interference Cancellation with Low Complexity for the Performance Improvement Under High-Mobility Condition. The Journal of Korean Institute of Communications and Information Sciences, 32, 2, (2007), 95-112. DOI: .

[KICS Style]

SeungWon Kang, KyooHyun Kim, KyungHi Chang, "Analysis on the Performance Degradation of MIMO-OFDM Receiver and Hybrid Interference Cancellation with Low Complexity for the Performance Improvement Under High-Mobility Condition," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 2, pp. 95-112, 2. 2007.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880