MetaVideo has 802.11 IP cores. MetaVideo stands ready to customize these modules to your precise needs.

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8000 Series Wireless Communications IP Cores
(802.11a compliant, 160MHz)

- MVIP8100 IFFT radix-4, 64-point
- MVIP8200 FFT radix-4, 64-point
- MVIP8300 Viterbi Convolutional Encoder
- MVIP8400 Viterbi Convolutional Decoder K=7, depuncturing capable
- MVIP8500 802.11a Interleaver
- MVIP8600 802.11a Deinterleaver
- MVIP8700 802.11a Mapper with BPSK, QPSK, QAM16, and QAM64
- MVIP8800 802.11a Demapper with 4-bit wide soft bits

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THE “IFFT/FFT”
The IFFT/FFT block is a dedicated block optimized for performing radix-4, 64-point IFFT or FFT. It completes one FFT in 192 cycles. It can operate at 160 MHz.

THE “VITERBI DECODER”
The Viterbi decoder is capable of performing soft encoding on convolutionally encoded data stream with convolution constant K = 7. It can operate at 160 MHz. Most the variables of the Viterbi decoder are parameterized and can be adjusted before synthesis and several others can be programmed during operation. The backtracing depth, which usually is chosen to be equal to 5xK can be varied during operation. Depuncturing is also supported and the depuncturing algorithm pattern is also programmable.

THE “INTERLEAVER”
The interleaver is a hardware dedicated block to perform the intelreaving function required by 802.11a. It operates on two bits at a time as they come out of the convolutional coder.

THE “DE-INTERLEAVER”
The de-interleaver implements the de-interleaving function required by 802.11a. It operates on soft bits. The size of the soft bits is defined by a parameter that can be specified before synthesis.

THE “MAPPER”
The mapper implements all the mapping functions specified by 802.11a. These consist of BPSK, QPSK, QAM16, QAM64.

ABOUT THE “DE-MAPPER”
The de-mapper performs the de-mapping functions of 802.11a generating 4-bit wide soft bits.