Iterative Detection and Decoding with an Improved V-BLAST for MIMO-OFDM systems
2006
This paper proposes an improved vertical Bell Labs Layered Space-Time (V-BLAST) with iterative detection and decoding (IDD) scheme for coded layered space-time architectures in MIMO-OFDM systems. For the iterative process, a low-complexity demapper is developed by making use of both nonlinear interference cancellation and linear filtering. Also a simple cancellation method based on hard decision is presented to reduce the overall complexity. Simulation results demonstrate that the proposed V-BLAST with IDD scheme offers the performance close to the optimal turbo-MIMO approach, while providing tremendous savings in computational complexity.
Keywords:
- Computational complexity theory
- Single antenna interference cancellation
- Decoding methods
- MIMO-OFDM
- MIMO
- Computer science
- Linear filter
- Orthogonal frequency-division multiplexing
- Theoretical computer science
- Iterative and incremental development
- Real-time computing
- Computer engineering
- Additive white Gaussian noise
- Correction
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