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Performance of Un-coded MC-CDMA-based Broadband Power Line Communications

Daniel Ngondya, Justinian Anatory, Abdil Rashid Mohamed Published in Communications

Communications on Applied Electronics
Year of Publication: 2015
© 2015 by CAE Journal
10.5120/cae-1635

Daniel Ngondya, Justinian Anatory and Abdil Rashid Mohamed. Article: Performance of Un-coded MC-CDMA-based Broadband Power Line Communications. Communications on Applied Electronics 1(8):41-47, May 2015. Published by Foundation of Computer Science, New York, USA. BibTeX

@article{key:article,
	author = {Daniel Ngondya and Justinian Anatory and Abdil Rashid Mohamed},
	title = {Article: Performance of Un-coded MC-CDMA-based Broadband Power Line Communications},
	journal = {Communications on Applied Electronics},
	year = {2015},
	volume = {1},
	number = {8},
	pages = {41-47},
	month = {May},
	note = {Published by Foundation of Computer Science, New York, USA}
}

Abstract

Physical and noise characteristics of power line network have made it a challenging task to design Broadband Power Line Communication (BPLC) systems using single carrier systems. Multicarrier schemes such as Orthogonal Frequency Division Multiplexing (OFDM) have been widely used to design the systems. However, recently Multicarrier Code Division Multiple Access (MC-CDMA) which combines the best features of OFDM and Code Division Multiple Access (CDMA) has been gaining popularity. In this work, a typical low-voltage power-line network found in Kariakoo Area, Dar es Salaam has been considered. Performance of such a low-voltage channel using Multi-Carrier Code Division Multiple Access with Binary Phase Shift Keying (BPSK) modulation has been assessed for suitability to communication. The simulation of the power-line network was based on data collected from a Map of Kariakoo power-line network. Document Analysis techniques were used to identify branches, cable types, and segment lengths from the map. In the simulated network, the positions of transmitter and receivers were varied to identify possible degraded performance scenarios. It was observed that the maximum Delay Spread for such networks is 3?s, making the number of sub-channels and Cyclic Prefix required to build a 100MegaHertz system, 4096 and 512 respectively. The use of MC-CDMA in broadband power-line communication results in improved performance by 12 to 43 Decibels compared to the use of Orthogonal Frequency Division Multiple Access.

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Keywords

MC-CDMA, Broadband Power Line Communications, Multicarrier Modulation.