Rate Adaptive ACO-OFDM on Multipath Channels for Enhancing Spectral Efficency

Hailu, Zelalem; Langat, Philip Kibet; Ciira, Wa Maina

dc.contributor.author	Hailu, Zelalem
dc.contributor.author	Langat, Philip Kibet
dc.contributor.author	Ciira, Wa Maina
dc.date.accessioned	2017-11-30T05:42:47Z
dc.date.available	2017-11-30T05:42:47Z
dc.date.issued	2017
dc.identifier.citation	http://www.ripublication.com	en_US
dc.identifier.issn	0973-4562
dc.identifier.uri	http://41.89.227.156:8080/xmlui/handle/123456789/651
dc.description.abstract	In spite of its spectral efficiency problem, asymmetrically clipped optical orthogonal frequency division multiplexing (ACO-OFDM) is one of widely accepted transmission scheme for intensity modulation/direct detection (IM/DD) based optical wireless communications. In this paper, we analyze the potential of rate adaptive based ACO-OFDM scheme to enhance spectral efficiency of indoor optical wireless communication. Frequency selective based bit loading strategy is used to transmit variable number of bits on different sub carriers having different channel gains. The result of our evaluations confirms that rate adaptive ACOOFDM offers better spectral efficiency compared to fixed modulation formats on all sub carriers.	en_US
dc.language.iso	en	en_US
dc.publisher	International Journal of Applied Engineering Research	en_US
dc.relation.ispartofseries	Volume 12;Issue 21
dc.subject	rate adaption; ACO-OFDM; IM/DD; optical wireless communications; diffiused optical channel	en_US
dc.title	Rate Adaptive ACO-OFDM on Multipath Channels for Enhancing Spectral Efficency	en_US
dc.type	Article	en_US