  High Peak to Average Power Ratio (PAPR) of the transmitted signal is a
critical problem in multicarrier modulation systems (MCM) such as Orthogonal
Frequency Division Multiplexing (OFDM), and Multi-Carrier Code Division
Multiple Access (MC CDMA) systems, due to large number of subcarriers. High
PAPR leads to reduced resolution, and battery life. It also deteriorates system
performance. This paper focuses on review of different PAPR reduction
techniques with attendant technical issues as well as criteria for selection of
PAPR reduction technique. To reduce PAPR the constraints are low power
consumption, and low Bit Error Rate (BER). Spectral bandwidth is improved by
better spectral characteristics, and low complexity/cost.

Networking and Internet Architecture