Abstract
Generation of wireless network from past to present deals with many fatal problems such as - spectrum scarcity, lower data rates, power deficiency, synchronization, unfavorable diversity, inferior QoS, and Interference. Many of the above problems are resolved in some manner using a better modulation and multiplexing technique using Orthogonal Frequency Division Multiplexing (OFDM), however, it still interlocks with Interference hindrance. In the paper, we surveyed all about OFDM interference's - Inter Symbol Interference (lSI), Inter Carrier Interference (ICI) and Co- Channel Interference (CCI) which greatly inhibits the Bit Error Rate (BER) of OFDM. Moreover, this paper also reviews some of the good research on interference mitigation techniques. We also surveyed the work on wavelet transform which is quite effective in OFDM system compare to conventional Fourier transform. Channel coding is a measurable parameter which is a mere technique in reducing the CCI effect from the wireless system, for that we elaborate Space Time Block Code-OFDM (STBC-OFDM) to reduce ICI and CCI.
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