Write difference b/w Equalisation&& Interleaving?

Equalisation:

- An adaptive equalizer is employed by a GSM receiver for overcoming the impact of non-ideal channel characteristics which are caused by multipath propagation.
- Adaptive equalizer is required because the channel characteristics are often changing fast.
- Tuning the for each time slot is done by the equalizer.

b.) Interleaving:

- Time diversity in a signal communication system is obtained by using Interleaving.
- The possibility of losing whole bursts will be decreased by interleaving.
- Total 456 bits from convolution encoder, including 20ms of speech, is subdivided into eight blocks. Each block consists of 57 bits.
- All these blocks are transmitted in consecutive time slots.
- Enough information is available in 7 blocks, in case one of the blocks is lost due to burst errors. This enables whole segment recovery by using error correction.