A Novel Adaptive Algorithm Addresses Potential Problems of Blind Algorithm

Author:

Yasin Muhammad1,Hussain Muhammad Junaid1

Affiliation:

1. National University of Sciences and Technology, H-12, Islamabad, Pakistan

Abstract

A hybrid algorithm called constant modulus least mean square (CMLMS) algorithm is proposed in order to address the potential problems existing with constant modulus algorithm (CMA) about its convergence. It is a two-stage adaptive filtering algorithm and based on least mean square (LMS) algorithm followed by CMA. A hybrid algorithm is theoretically developed and the same is verified through MatLab Software. Theoretical model is verified through simulation and its performance is evaluated in smart antenna in presence of a cochannel interfering signal and additive white Gaussian noise (AWGN) of zero mean. This is also tested in Rayleigh fading channel using digital modulation technique for Bit Error Rate (BER). Finally, a few computer simulations are presented in order to substantiate the theoretical findings with respect to proposed model. Corresponding results obtained with the use of only CMA and LMS algorithms are also presented for further comparison.

Publisher

Hindawi Limited

Subject

Electrical and Electronic Engineering

Cited by 5 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. An Efficient Broadband Null-Steering Beamformer for Interference Mitigation in Wireless Communication;2023 2nd International Conference on Multidisciplinary Engineering and Applied Science (ICMEAS);2023-11-01

2. An Efficient Narrowband Null-Steering Beamformer for Interference Mitigation in Wireless Communications;2023 2nd International Conference on Multidisciplinary Engineering and Applied Science (ICMEAS);2023-11-01

3. Stabilised blind interference suppression of constant modulus‐based adaptive array over Rayleigh fading channels by initial antenna selection;IET Microwaves, Antennas & Propagation;2019-07-08

4. Development of blind algorithm with automatic gain control;Wireless Networks;2019-03-04

5. Blind Equalization of Constant Modulus Signals Based on Gaussian Process for Classification;Wireless Personal Communications;2017-08-17

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