Reconfigurable Baseband Processing for Wireless Communications - Adaptive Signal Processing in Wireless Communications - page 456

Bit error rate vs. signal−to−noise ratio — UMTS Case 4

10 0

Average Rake−4 Receiver Performance (Montium)
Average Rake−4 Receiver Performance (Reference)
Average Rake−4 Receiver Performance (Additional Input Scaling, Montium)

10 −1

10 −2

−20 −18 −16 −14 −12 −10 −8 −6 −4 −2 0

E c /N 0 [dB]

FIgure 15.9 The influence of additional input scaling on the average BER before error correc-
tion under case 4 propagation conditions (additional results to Figure 15.8 ).

Fast
Fourier
Transform
(FFT)

Guard
time
removal

Frequency
offset
correction

Channel
equaliza-
tion

Symbol
de-
mapping

OFDM receiver

FIgure 15.10 Generic OFDM receiver framework.

which form OFDM symbols. The output of the baseband processing part consists of
encoded channel bits. The baseband processing functions are supported by a GPP, which
is used for control purposes. The control streams between the processing tiles are shown
as dashed arrows in Figure 15.11 . The data streams between the processing tiles are
mapped on channels of the NoC. The NoC provides the on-chip communication net-
work in the SoC.