VLSI Design

Research Article

Enabling VLSI Processing Blocks for MIMO-OFDM Communications

Table 1

Operations performed by the PE's.
Boundary PE
Mode Operation
Diagonal R e g ⇐ 𝑌 i n ; 𝑋 o u t ⇐ 𝑌 2 i n ⋅ 𝑤 i n
Nondiagonal R e g ⇐ R e g ; 𝑋 o u t ⇐ 𝑌 i n ⋅ R e g ⋅ 𝑤 i n
Internal PE
Mode Operation
Diagonal R e g ⇐ 𝑌 i n 𝑌 ; R e g 2 ⇐ i n 𝑋 i n ; 𝑤 o u t ⇐ 𝑤 i n ⋅ 𝑋 i n 𝑋 i n + 𝑌 2 i n
𝑋 o u t ⇐ 𝑋 i n + 𝑌 2 i n ⋅ 𝑤 i n
𝑌 o u t ⇐ 𝑌 i n − 𝑌 i n 𝑋 i n ⋅ 𝑋 i n
Nondiagonal R e g ⇐ R e g ; R e g 2 ⇐ R e g 2 , 𝑤 o u t ⇐ 𝑤 o u t
𝑋 o u t ⇐ 𝑋 i n + 𝑌 i n ⋅ R e g ⋅ 𝑤 i n
𝑌 o u t ⇐ 𝑌 i n − R e g 2 ⋅ 𝑋 i n