A Literature Review in Methods to Reduce Multiple Access Interference, Inter-symbol Interference and Co-channel Interference

This discussion will be primarily focused on the problem of jointly suppressing the different interferences such as Multiple Access Interference (MAI) and Intersymbol Interference (ISI), which are the limiting sources of interference for high data-rate wireless applications, as in wireless multimedia or Spread Spectrum Code Division Multiple Access. After describing the general problem of interference rejection in wireless communications, we present a signal subspace approach to blind joint suppression of MAI and ISI. Then, follows a discussion of a powerful iterative technique for joint interference suppression and decoding called Turbo multiuser detection that is especially useful for wireless multimedia packet communications. We also discuss space-time processing methods that employ multiple antennas for interference rejection and signal enhancement. These are not all the available methods, but the ones that we consider available to us in the near future. We will deal on; a) Co-Channel interference mitigation detectors, b) Partially suppression of MAI and ISI, c) MAI near–far resistance architecture, and d) Successive interference algorithms.