A survey on IEEE 802.11n802.11 are just figures for non-wireless people, but for people interested in wireless technologies they have significant value. The Institute of Electrical and Electronics Engineers (IEEE) sets certain standards for research into technologies in certain fields. 802 is the standard that deals with local and metropolitan networks. 802.11 is the standard that deals with the implementation of wireless-LAN.IEEE introduced 802.11 to improve communication between computers and similar devices. 802.11 is primarily concerned with several mechanisms used in the physical and MAC layers to ultimately control the data rate, which defines the efficiency of the system. The first one was introduced in 1997 and subsequently several changes were made to these standards in order to achieve better data transmission speed with the help of cutting-edge technologies. During the introduction of new standards, most of the previous standards were integrated into the new standard. Additionally, a large number of companies make their products based on these standards so they can stay ahead of the competition. 802.11a and 802.11g were the most popular protocols before the revision of the 802.11n standard. 802.11a is a wireless protocol introduced in 1999. This protocol operates on a 5 GHz band and uses the basic waveform of orthogonal frequency division multiplexing (OFDM) and achieves a maximum data rate of approximately 54 Mbps. It was one of the most used protocols for wireless systems. However, 802.11g operated on the 2.4 GHz band and used the same OFDM waveform as that of 802.11a. It was revised in 2003 and entered public use with a maximum possible bit rate of about 54 Mbps. The IEEE 802.11n wireless protocol was not just a revision but a revolution...... middle of paper.... .. 802.11n standards such as MIMO, OFDM, channel bonding and other factors that have changed in 802.11n compared to its previous standards. These journals also give insight into how a protocol is implemented and the conditions involved in achieving maximum throughput using an 802.11n system. Along with these, I came across some interesting publications and websites included in the reference section that provide a brief introduction to wireless communications and meaning of 802.11 protocols while communication takes place between computers or other devices. These publications clearly describe the functionality of the 802.11n protocol and also describe the different factors involved in achieving the maximum throughput of 600Mbps. Therefore, I would like to discuss all the above-mentioned topics as part of my investigation report on IEEE 802.11n with the help of the above-mentioned references.