access icon free Performance analysis of improved ZF algorithm for massive MIMO in uplink

© The Institution of Engineering and Technology
Received 28/04/2017, Accepted 03/10/2017, Published 19/10/2017

Performance of large-scale MIMO systems is restricted by pilot contamination, coherence block length, hardware impairments and other system parameters. In this Letter, the authors aim to improve the bandwidth efficiency (BE) of massive MIMO systems in multi-cell scenarios. An improved version of the zero forcing (ZF) algorithm is proposed, based on that new expressions for BE are derived. The authors have compared the proposed algorithm with the conventional ZF algorithm and simulation results show sufficient improvement of performance in terms of BE.

Inspec keywords: performance evaluation; MIMO communication; cellular radio

Other keywords: performance analysis; bandwidth efficiency; massive MIMO; large-scale MIMO systems; zero forcing algorithm; multicell scenarios; ZF algorithm; uplinks

Subjects: Mobile radio systems

References

    1. 1)
    2. 2)
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    4. 4)
    5. 5)
      • 5. Björnson, E., Larsson, E.G., Debbah, M.: ‘Massive MIMO for maximal spectral efflciency: How many users and pilots should be allocated?’, Trans. Wireless Commun., Submitted, Available: http://arxiv.org/pdf/1412.7102.
    6. 6)
      • 1. Larsson, E.G., Tufvesson, F., Edfors, O., et al: ‘Massive MIMO for Next Generation Wireless Systems’, May 2013. [Online]. Available: http://arxiv.org/abs/1304.6690v2.
    7. 7)
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