3G Long Term Evolution Baseband Processing with Application-Specific Processors

Table 1

The baseband processing chain with TTA processors, 2×2 antennas, 1201 subcarriers, 64-QAM, 6144-length turbo code block, list length 𝐾=16, data rate 100 Mbps.

Clk. freq. 𝑓𝑖 (MHz)	Task 𝑖	No. of procs. 𝑃𝑖	Util. 𝑈𝑖	Delay 𝐷𝑖 (ms)	Area (kGE)	Area ×𝑃𝑖	Power est. (mW)	Power est. ×𝑃𝑖×𝑈𝑖	Tech. (𝜇m)	Ref.
250	FFT	2	0.69	0.049	30.5	61.0	36.3	50.1	0.13	[14]
250	Turbo dec.	5	0.98	0.300	35.1	175.5	50.8	248.9	0.13	[29]
250	QR & prod.	2	0.91	0.372	17.7	35.4	13.1	23.8	0.13	[20]
250	LSD	30	0.99	0.071	23.6	708.0	20.8	617.8	0.13	[25]
Total		39	0.97	0.792		979.9		940.6