Critical-Path Analysis and Low-Complexity Implementation of the LMS Adaptive Algorithm

This paper presents a precise analysis of the critical path of the least-mean-square (LMS) adaptive filter for deriving its architectures for high-speed and low-complexity implementation. It is shown that the direct-form LMS adaptive filter has nearly the same critical path as its transpose-form counterpart, but provides much faster convergence and lower register complexity. From the critical-path evaluation, it is further shown that no pipelining is required for implementing a directform LMS adaptive filter for most practical cases, and can be realized with a very small adaptation delay in cases where a very high sampling rate is required. Based on these findings, this paper proposes three structures of the LMS adaptive filter: (i) Design 1 having no adaptation delays, (ii) Design 2 with only one adaptation delay, and (iii) Design 3 with two adaptation delays. Design 1 involves the minimum area and the minimum energy per sample (EPS). The best of existing direct-form structures requires 80.4% more area and 41.9% more EPS compared to Design 1. Designs 2 and 3 involve slightly more EPS than the Design 1 but offer nearly twice and thrice the MUF at a cost of 55.0% and 60.6% more area, respectively.

  • Project Category : IEEE Projects
  • Project Year : 2014-2015
  • Department
  • B.E(Bio Medical Engg), B.E(Computer Science) , B.E(Electrical and Electronics Engg), B.E(Electronics and Communication), B.E(Information Technology), B.E(Instrumentation Control and Engg), B.E(Mechtronics), B.SC(CS), B.SC(IT), B.Tech, BCA, M.E(APPLIED ELECTRONICS), M.E(Computer Science), M.E(CONTROL SYSTEM), M.E(POWER ELECTRONICS), M.E(SOFTWATE ENGG), M.E(VLSI), M.SC(CS&M), M.SC(CS), M.SC(IT&M), M.SC(IT), M.SC(SOFTWARE ENGG), M.Tech, MCA,
  • Domain
  • Agricultural based projects, andorid, Automobiles, Bio-Metrics Application, Bluetooth / GSM Applications, BLUETOOTH Based Embedded Projects, Cloud Computing, Communications, Cybernetic, Data Mining, Db Knowledge , Dependable, Dependable and Secure Computing, Digital Signal Processing, Embedded Electrical, Embedded system, Enterprise Resource Planning, GPRS/EMBEDDED Networking Based Projects, GPS Based Embedded Projects, Image Processing, Intelligent System, Internet Computing, Knowledge & Data Engineering, LABVIEW, MATLAB Projects, Mechatronics, MEMS Based Embedded Projects, Mobile ad hoc network, Mobile Application, Mobile Computing, Network Security , Networking, Non conventional , Parallel Computing, Pattern Analyses, PC Based Embedded Project, Production & Automation, RF / RFID Projects, RF BASED Embedded Projects, RFID Based Embedded Projects, Robotics, RTOS, Secure Computing, Service Computing, SMART CARD Based Embedded Projects, Video Technology, VLSI, Web Application, Web Intelligence and Intelligent Agent Tech, Web Security, Web Service, Wireless Communication , wireless senor network, X-BEE BASED Embedded PROJECTS,
  • Technology
  • ASIC- Schematic/Layout, ASP.Net, C, C#.Net, C++, Communication, .Net, FPGA Implementation, Image processing, J2EE, J2ME, Java, PHP, PIC/Arduino/ARM, Raspberry Pi, RTL-Verilog/VHDL, Signal processing, UCOSII, VB.Net, VC++,
  • Avilable city
  • Bangalore, Chennai, Coimbatore, Delhi, Hyderabad, Madurai, Pondicherry, Salem, Thanjavur, Trichy,

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