Open AccessPower allocation for hidden‐pilot‐aided precoding schemes in orthogonal frequency division multiplexing systems
Author(s) -
Kim Byung Wook,
Jung SungYoon
Publication year - 2014
Publication title -
iet communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.355
H-Index - 62
eISSN - 1751-8636
pISSN - 1751-8628
DOI - 10.1049/iet-com.2013.0347
Subject(s) - precoding , computer science , orthogonal frequency division multiplexing , zero forcing precoding , bit error rate , interference (communication) , channel (broadcasting) , multiplexing , electronic engineering , signal to noise ratio (imaging) , bandwidth (computing) , transmitter power output , power (physics) , telecommunications , mimo , engineering , transmitter , physics , quantum mechanics
The allocation of power to the pilot in hidden‐pilot‐aided precoding schemes, which provide high efficiency in bandwidth utilisation, for orthogonal frequency division multiplexing systems was investigated. By maximising the lower bound on the effective signal‐to‐interference plus noise ratio, the closed‐form solution was derived for pilot power allocation in both the low and high signal‐to‐noise ratio regions. Numerical results present the advantages of the proposed scheme for allocating power to the hidden pilot in terms of bit error rate and average channel capacity.