Wireless communications has become a new field to growing rapidly in our recent life and creates a huge impact on almost all the features of our daily lives. An enormous technological transformation in the prior two decades has been provided a potential growth in the area of digital communication and lots of the most recent applications and technologies are to come each day as a result of these valid reasons. Digital modulation contributes to the growth of mobile communications by increasing the quality, speed and capacity of the wireless network. In the communication, the idea of modulation is a primary factor for the reason that without a scheme of appropriate modulation, it would be not possible to attain a planned flow. The offered bandwidth, allowable power and the level of inherent noise of the system are the constraints which must be taken into account in the development of communication systems. Because of the error free capacity in the digital modulation, it is chosen over the techniques of analogue modulation. The WiMax uses combinations of distinct modulation schemes such as BPSK, QPSK, 4-QAM and 16-QAM and it is a capable technology which provides video, data and high speed voice services. In this literature the review of documentation on the various digital modulation techniques that are typically used for wireless communication is presented.

Digital Modulation; Amplitude Shift Keying; Phase Shift Keying; Binary Phase Shift Keying (BPSK); Quadrature Phase Shift Keying (QPSK); QAM; Bit Error Rate

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