The orthogonality of overlapping carriers is not preserved as for OFDM techniques, and the symbol spans over more than one symbol duration.
Thus, the hyper-symbol span described in (8) is performed only with the root belonging to this reduced set of QAM symbols.
In our non-binary case (q > 2), one GF q) coded symbol may span more than one STBC codeword.
Results showed that, compared with the normotensive individuals, the hypertensives performed more poorly on a set of tasks that measure speed of information processing and short-term memory (Digit Symbol, Digit Span (Backwards), and Reaction Time (slope)).
Using principal component analysis (PCA), a general cognitive ability component score (g-factor) was derived from six WAIS-III subtests (Letter-number sequencing, Matrix reasoning, Block design, Digit symbol, Digit Span backwards, Symbol search).
Digit Symbol, Digit Span 36 and Trail Making Test A (TMT-A) 30 were used to evaluate processing speed and attention/working memory.
26 Cognitive function was assessed using seven cognitive domains: global cognitive function (Mini Mental State Examination [MMSE]), 27 executive control function (the clock drawing test), 28 verbal memory (Rey auditory verbal learning test [RAVLT]), 29 and subtests of Wechsler Adult Intelligent Scale III, 30 ie, digit symbol, digit span, matrix reasoning, and block design.
Each RB comprises of six or seven OFDM symbols and spans a length of 0.5 ms [24, 25].
CSF levels of 5-HIAA have been related to performance on tests of attention, working memory and executive function as measured by the digit-symbol, digit-span and picture arrangement tasks [ 19, 30].
At the receiver side, a 2N-point FFT must be taken after serial to parallel (S/P) conversion to demodulate each UFMC symbol since they span N+L UFMC−1+ZP L samples.
