Polar-Cap Codebook Design for MISO Rician Fading Channels With Limited Feedback

Most of the prior works on designing codebooks for limited feedback systems have not considered the presence of strong line-of-sight (LOS) channel component. This letter proposes the design of polar-cap codebook (PCC) for multiple-input single-output (MISO) limited feedback systems subject to Rician...

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Bibliographic Details
Published inIEEE wireless communications letters Vol. 10; no. 4; pp. 730 - 734
Main Authors Hong, Sung Hyuck, Kim, Sucheol, Choi, Junil, Choi, Wan
Format Journal Article
LanguageEnglish
Published Piscataway IEEE 01.04.2021
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Array signal processing
Beamforming
Channel estimation
Channels
Codes
Fading
Fading channels
Feedback
Indexes
Line of sight
MISO (control systems)
MISO communication
multiple-input single-output (MISO) limited feedback systems
Polar-cap codebook (PCC)
Rician channels
Rician fading channels
Signal to noise ratio
transmit beamforming
Online AccessGet full text
ISSN2162-2337
2162-2345
DOI10.1109/LWC.2020.3041941

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Summary:Most of the prior works on designing codebooks for limited feedback systems have not considered the presence of strong line-of-sight (LOS) channel component. This letter proposes the design of polar-cap codebook (PCC) for multiple-input single-output (MISO) limited feedback systems subject to Rician fading channels. The codewords of the designed PCC are adaptively constructed according to the instantaneous strength of the LOS channel component. Simulation results show that the codebook can significantly enhance the performance of transmit beamforming in terms of received signal-to-noise ratio (SNR).
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ISSN:2162-2337
2162-2345
DOI:10.1109/LWC.2020.3041941