An Overview of OFDM-UWB 60 GHZ System in High Order Modulation Schemes

Advanced technology was needed for this within the cap of bandwidth, due to new developments in wireless networking and the increasing requirement of high data levels by consumers. One of the promising solutions is a system with 60 GHz Ultra-Wideband (UWB) that supports a data rate of up to 7 Gbps, considered 10 times faster than the Wi-Fi 802.11n data rate. The system uses advanced modulation modulations and coding systems called adaptive modulation and coding (AMC). However, inappropriate modulation level selection and coding rate can lead, in the event of radio frequency interference and a multi-way decline, to a low data rate. In fact, if non-optimum decoder due to the code's restriction duration was chosen, more output loss occurs. In this paper, we will present explain about the OFDM technology. Also, we will discuss 60 GHZ Frequency Band and all their advantage. So, we will explain the OFDM-UWB systems and convolutional coding and viterbi decoding.