Wavelet packet transform based de-noising receiver for indoor optical wireless system

IEICE Electronics Express

Maruthamuthu Paramasivam Prabakaran²  Arunagiri Sivasubramanian¹  Krishnan Chitra¹ 

[1] Professor(s)/ECE, St. Joseph’s College of Engineering;Assistant Professor/ECE, Alpha College of Engineering

关键词: de-noising;    optical wireless communication;    SNR;    BER;    path loss;    wavelet transform;   

DOI  :  10.1587/elex.11.20140346

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(10)This paper reports systematic appraisal of wavelet transform based de-noising receiver, for high speed indoor optical wireless communication. For upcoming high speed indoor optical wireless communication systems, wavelet transform based de-noising receiver in indoor environment represent grand consideration. Performance evaluation is carried out in the presence of natural (sunlight) and artificial light sources (incandescent light) in typical room environment. The performance of receiver is considered in two arrangements: They are single channel imaging receiver (SCIR) and wavelet transform based de-noising receiver. The second scheme provides better results than first scheme (SCIR). The simulation results for both SCIR and wavelet transform based de-noising receiver are shown. The simulation results indicate that the wavelet packet transform (WPT) based de-noising receiver offers increased received optical power, signal to noise ratio (SNR), and reduced bit error rate (BER), path loss compared to the SCIR and discrete wavelet transform based de-noising receiver.

【 授权许可】

Unknown