Area And Power Efficient Mac Unit

Kottapalli Pvt Nageswari, S. Mahaboob Basha


In the field of semiconductor design industry which, in the contemporary times, has observed exceptional, explosive and exhilarating growth in the development of portable communication devices like mobile phones, IPADS and note books. These real time processing systems perform high computational operations, mainly in the form of butterfly and Multiply Accumulate (MAC). However, these systems are expected to consume high power and are characterized by high data throughput rate. Of the two, MAC is a major component used in portable applications and communication sectors like Wireless Code Division Multiple Access (WCDMA), base station receivers, Successive Interference Canceller (SIC), Orthogonal Frequency Division Multiplexing (OFDM) based wireless devices, channel estimators and carrier synchronizers. In general the MAC block resides in the critical path, which governs the complete power and speed of the system. The efficient utilization of MAC in terms of speed and power depends upon the type of architecture, logic technology style, the fundamental block and primitive cell realization. This study vividly presents the bird eye view on the hitherto work concerning the existing MAC unit in terms of its power performance factors, which helps the future researcher for opting suitable MAC block which can be used in Field Programmable Gate Array (FPGA) and Application Specific Integrated Circuit (ASIC) for signal processing applications. The comparative analysis is based on architecture/size, number of clock cycles, Partial Product Reduction Tree (PPRT), functional module, power saving method, logic technology, fabrication process and speed-voltage performance

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