Since, the symbols are lost based on the channel frequency selection and narrow band interferenceĪs mentioned earlier, OFDM is the modulation type for digital transmission.So, it causes minimum data transfer rate on every sub-channel.Robust to interference of inter-frame and inter-symbol. But in OFDM, the channel equalization is applied on the multiple sub-channels.Since, it will be applied in whole channel In existing CDMA model, the equalization of channel is the tough task to be carried out.Effectively use the existing spectrum due to the closed-spaced overlying sub-carriers (i.e., OFDM).Since, it splits the whole channels into numerous narrowband signals where it is affected independently as flat fading sub-channels.Main OFDM benefit is high resistance to frequency selective fading (compare to single carrier).In order to recover the lost symbols, one can use adequate channel coding and interleaving.Constrained bandwidth is the one of the main interference in channels but it cause heavy data loss.
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