DOI: 10.4018/IJeC.2020100105 International Journal of e-Collaboration Volume 16 • Issue 4 • October-December 2020 Copyright © 2020, IGI Global. Copying or distributing in print or electronic forms without written permission of IGI Global is prohibited. 59 ASIC Implementation of Linear Equalizer Using Adaptive FIR Filter Grande Naga Jyothi, Vellore Institute of Technology, India Anusha Gorantla, Qis College of Engineering and Technology, India Thirumalesu Kudithi, Vellore Institute of Technology, India https://orcid.org/0000-0003-1951-1188 ABSTRACT Power consumption plays a crucial role in the design of portable wireless communication devices, as it has a direct influence on the battery weight and volume required for operation. This article presents a novel design for a linear LMS equalizer for the optimization of filter order. The article describes the use of a variable length algorithm for dynamically updating the tap-length of the LMS adaptive filter to optimize the performance and for reducing the power in the adaptive filter core. An algorithm is applied to reduce and adjust the order of the filter in linear equalizer according to the channel conditions. The proposed design is implemented in the synopsis TSMC 65nm technology. The results from using the algorithm uses 28% less power when compared with the conventional 64-tap fixed length adaptive filter design. It has also been shown that the low-complexity of the additional circuitry needed for the variable length adaptive filter presents minimal overhead for this architecture. KEywoRdS Equalizer, FIR Filter, LMS Adaptive Filter, MAC, Segmented Block 1. INTRodUCTIoN The paramount role of battery-powered gadgets, portability are more in need for low-power, high throughput electronic devices. This is mainly for gadgets such as 3G/4G mobile phones, laptops and other wireless communication data enabled devices which need more powerful computation and real- time signal processing capabilities. As bandwidth for wireless communications systems continues to be a limited resource, the improvement of unique technologies that are more effective or can change parts of the spectrum that have already assigned. At the same time, these unique devices are expected to view higher data transfer rates, have lower power requirements and service many users at a time. This time averaged power consumption in particular, needs critical consideration during design of portable wireless gadgets as it has a direct effect on the battery weight and volume required for operation. The performance of conglomerate systems which promote wireless communication requires the need of efficient and flexible cores for their equipment. Equalizers are used to compensation of amplitude and phase dispersion which results in the interference of transmitted signals with one another.